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Hadi A, Khosroshahi MZ, Zwamel AH, Asbaghi O, Naeini F, Miraghajani M, Nouri M, Ghaedi E. Impact of walnut consumption on glycemic control and anthropometric indices: a systematic review and meta-analysis of randomized controlled trials. J Diabetes Metab Disord 2025; 24:62. [PMID: 39911204 PMCID: PMC11790541 DOI: 10.1007/s40200-025-01566-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2024] [Accepted: 01/11/2025] [Indexed: 02/07/2025]
Abstract
Objectives Previous studies have led to conflicting results regarding the effect of walnut consumption on glycemic control, and anthropometric indices. This study aimed to evaluate the efficacy of walnut consumption on serum levels of fasting blood sugar (FBS), fasting insulin, hemoglobin A1C (HbA1c), homeostasis model assessment of insulin resistance (HOMA-IR), weight and body mass index (BMI) through a systematic review and meta-analysis of randomized controlled trials (RCTs). Methods PubMed, Scopus, Web of Science, and the Cochrane databases were searched up to February 2023. Weighted mean difference (WMD) was analyzed using random effects models to assess the overall effect. Results A total of thirty-two RCTs were included in the systematic review and meta-analysis. Walnut supplementation was found to significantly reduce HOMA-IR (WMD = -0.29; 95% CI: -0.57, -0.01, P = 0.04), and body weight (WMD = -0.14 kg; 95% CI: -0.24, -0.04; P = 0.008). However, the meta-analysis showed that walnut supplementation did not have a significant effect on FBS (WMD = 0.62 mg/dL; 95% CI: -0.66, 1.91; P = 0.34), insulin levels (WMD = 1.27 mIU/ml; 95% CI: -0.59, 3.14; P = 0.18), HbA1C (WMD = 0.00%; 95% CI: -0.09, 0.10; P = 0.95), and BMI (WMD = -0.10 kg/m2; 95% CI: -0.40, 0.20; P = 0.50). Conclusion In conclusion, this study found a significant reduction in HOMA-IR levels and body weight with walnut supplementation, while other glycemic markers, and obesity-related indices did not change significantly. Future well-designed trials are needed to confirm these results.
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Affiliation(s)
- Amir Hadi
- Halal Research Center of IRI, Food and Drug Administration, Ministry of Health and Medical Education, Tehran, Iran
| | | | - Ahmed Hussein Zwamel
- Medical Laboratory Technique College, the Islamic University, Najaf, Iraq
- Medical Laboratory Technique College, the Islamic University of Al Diwaniyah, Al Diwaniyah, Iraq
- Medical Laboratory Technique College, the Islamic University of Babylon, Babylon, Iraq
| | - Omid Asbaghi
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Student Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fatemeh Naeini
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Mayam Miraghajani
- Department of Cancer Research Center, Shahid Beheshti of Medical Sciences, Tehran, Iran
| | - Mehran Nouri
- Infertility and Reproductive Health Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
- Social Determinants of Health Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Ehsan Ghaedi
- Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
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Nishi SK, Paz-Graniel I, Ni J, Valle-Hita C, Khoury N, Garcia-Gavilán JF, Babio N, Salas-Salvadó J. Effect of nut consumption on blood lipids: An updated systematic review and meta-analysis of randomized controlled trials. Nutr Metab Cardiovasc Dis 2025; 35:103771. [PMID: 39638677 DOI: 10.1016/j.numecd.2024.10.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2024] [Revised: 10/04/2024] [Accepted: 10/09/2024] [Indexed: 12/07/2024]
Abstract
AIMS Nuts are nutrient-dense foods touted for their health-promoting effects, especially regarding cardiovascular health, yet inconsistencies in the literature remain in relation to their effect on blood lipids. Hence, a systematic review and meta-analysis of randomized controlled trials (RCTs) was conducted to determine the effect of nut intake on blood lipids. DATA SYNTHESIS MEDLINE-PubMed and Cochrane databases were searched. 113 unique trials met eligibility criteria (n = 8060 adults with various health status) assessing the effect of a median daily dose of 45.5 g/d of nuts compared to a non-nut control on blood lipid outcomes met inclusion criteria. Overall, nut consumption resulted in moderate reductions in total cholesterol (mean difference, -0.14 mmol/L [95 % confidence interval, -0.18 to -0.10 mmol/L]) and LDL-C (-0.12 mmol/L [-0.14 to -0.09 mmol/L]), with small reductions in triglycerides (-0.05 mmol/L [-0.07 to -0.03 mmol/L]), TC:HDL-C (-0.11 [-0.16 to -0.06]), LDL-C:HDL-C (-0.19 [-0.24 to -0.12]), and apolipoprotein B (-0.04 g/L [-0.06 to -0.02 g/L]). There was no significant impact on HDL-cholesterol or other assessed measures. Certainty of evidence was high for apolipoprotein A, and generally moderate/low for all other outcomes. Sensitivity analysis did not change the evidence on the main outcomes. Significant effect modifications in subgroup analysis were shown for most of the lipid parameters assessed. None of these subgroup effects altered the evidence of heterogeneity for any primary outcome. CONCLUSIONS Current evidence provides a good indication that consuming nuts may advantageously affect blood lipids in adults with a mix of health status. PROSPERO REGISTRATION PROSPERO identifier, CRD42022358688.
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Affiliation(s)
- Stephanie K Nishi
- Universitat Rovira i Virgili, Departament de Bioquímica i Biotecnologia, Alimentació, Nutrició, Desenvolupament i Salut Mental (ANUT-DSM), Reus, Spain; Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain; CIBER de Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Spain; Toronto 3D (Diet, Digestive Tract and Disease) Knowledge Synthesis and Clinical Trials Unit, Toronto, ON, Canada; Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, Unity Health Toronto, ON, Canada; School of Nutrition, Faculty of Community Services, Toronto Metropolitan University, Toronto, ON, Canada.
| | - Indira Paz-Graniel
- Universitat Rovira i Virgili, Departament de Bioquímica i Biotecnologia, Alimentació, Nutrició, Desenvolupament i Salut Mental (ANUT-DSM), Reus, Spain; Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain; CIBER de Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Spain
| | - Jiaqi Ni
- Universitat Rovira i Virgili, Departament de Bioquímica i Biotecnologia, Alimentació, Nutrició, Desenvolupament i Salut Mental (ANUT-DSM), Reus, Spain; Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain; CIBER de Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Spain
| | - Cristina Valle-Hita
- Universitat Rovira i Virgili, Departament de Bioquímica i Biotecnologia, Alimentació, Nutrició, Desenvolupament i Salut Mental (ANUT-DSM), Reus, Spain; Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain; CIBER de Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Spain
| | - Nadine Khoury
- Universitat Rovira i Virgili, Departament de Bioquímica i Biotecnologia, Alimentació, Nutrició, Desenvolupament i Salut Mental (ANUT-DSM), Reus, Spain; Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain; CIBER de Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Spain
| | - Jesús F Garcia-Gavilán
- Universitat Rovira i Virgili, Departament de Bioquímica i Biotecnologia, Alimentació, Nutrició, Desenvolupament i Salut Mental (ANUT-DSM), Reus, Spain; Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain; CIBER de Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Spain.
| | - Nancy Babio
- Universitat Rovira i Virgili, Departament de Bioquímica i Biotecnologia, Alimentació, Nutrició, Desenvolupament i Salut Mental (ANUT-DSM), Reus, Spain; Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain; CIBER de Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Spain.
| | - Jordi Salas-Salvadó
- Universitat Rovira i Virgili, Departament de Bioquímica i Biotecnologia, Alimentació, Nutrició, Desenvolupament i Salut Mental (ANUT-DSM), Reus, Spain; Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain; CIBER de Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Spain
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Bersch-Ferreira ÂC, Weschenfelder C, Waclawovsky G, da Silva LR, Stein E, Machado RHV, Figueiro MF, Suzumura EA, Santos RHN, Duarte GBS, Rogero MM, de Abreu-Silva EO, Cavalcanti AB, Marcadenti A. Effect of Nuts on Anthropometric and Glycemic Indexes and Blood Pressure in Secondary Cardiovascular Prevention: A Systematic Review and Meta-analysis of Randomized Controlled Trials. Nutr Rev 2025; 83:e144-e156. [PMID: 38781314 DOI: 10.1093/nutrit/nuae054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024] Open
Abstract
CONTEXT Nut-enriched diets have a positive impact on cardiovascular risk factors, such as body mass, blood pressure, and fasting blood glucose. However, studies in individuals undergoing secondary cardiovascular prevention show controversial results. OBJECTIVE This systematic review with meta-analysis assessed the effect of nut supplementation on anthropometric, glycemic, and blood pressure indices in patients with atherosclerotic cardiovascular disease, as well as the frequency of adverse events. DATA SOURCES Six databases were used for the search-PubMed, Cochrane Library, EMBASE, BVS (Biblioteca Virtual da Saude), Web of Science, and ClinicalTrials.gov-until February 2023, with no language restrictions. DATA EXTRACTION The Cochrane Handbook for Systematic Reviews of Interventions methodology and the PICOS (Population, Intervention, Comparison, Outcome, Setting/design) strategy were used. Seven independent reviewers were involved in data extraction and resolution of disagreements. Certainty of the evidence was evaluated using the GRADE (Grading of Recommendations Assessment, Development and Evaluation) system. DATA ANALYSIS From 5187 records identified, 6 publications containing data referring to 5 randomized clinical trials (n = 436) were included in the final analyses. The nuts evaluated were almonds, pecans, Brazil nuts, and mixed nuts, with portions that varied between 5 g and 85 g (median: 30 g/day). The intervention period varied between 6 and 12 weeks. The nuts had no effect on fasting glucose and anthropometric indices, although the certainty of the evidence for most of these outcomes was low or very low. They also had no effect on systolic (mean difference [MD]: -1.16 mmHg [95% CI, -5.68 to 3.35], I2 = 0%-moderate certainty of evidence) or diastolic (MD: 0.10 mmHg [95% CI, -2.30 to 2.51], I2 = 0%-high certainty of evidence) blood pressure. It was not possible to aggregate data on adverse events. CONCLUSION Nut supplementation had no effect on blood pressure, fasting glucose, or anthropometric profile in the context of atherosclerotic cardiovascular disease. SYSTEMATIC REVIEW REGISTRATION PROSPERO registration no. CRD42020163456.
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Affiliation(s)
- Ângela C Bersch-Ferreira
- Hcor Teaching Institute, Hcor, São Paulo, São Paulo, 04004-030, Brazil
- PROADI-SUS Office, Real e Benemérita Associação Portuguesa de Beneficência, São Paulo, São Paulo, 01323-001, Brazil
| | - Camila Weschenfelder
- Graduate Program in Health Sciences (Cardiology), Instituto de Cardiologia/Fundação Universitária de Cardiologia do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, 90040-371, Brazil
| | - Gustavo Waclawovsky
- Graduate Program in Health Sciences (Cardiology), Instituto de Cardiologia/Fundação Universitária de Cardiologia do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, 90040-371, Brazil
| | - Lucas R da Silva
- Hcor Teaching Institute, Hcor, São Paulo, São Paulo, 04004-030, Brazil
| | - Elana Stein
- Graduate Program in Health Sciences (Cardiology), Instituto de Cardiologia/Fundação Universitária de Cardiologia do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, 90040-371, Brazil
| | | | - Mabel F Figueiro
- Hcor Teaching Institute, Hcor, São Paulo, São Paulo, 04004-030, Brazil
| | - Erica A Suzumura
- Preventive Medicine Department, School of Medicine, University of Sao Paulo, São Paulo, São Paulo, 01246-903, Brazil
| | - Renato H N Santos
- Hcor Research Institute, Hcor, São Paulo, São Paulo, 04004-030, Brazil
| | - Graziela Biude Silva Duarte
- Department of Nutrition, School of Public Health, University of Sao Paulo, São Paulo, São Paulo, 01246-904, Brazil
| | - Marcelo M Rogero
- Department of Nutrition, School of Public Health, University of Sao Paulo, São Paulo, São Paulo, 01246-904, Brazil
| | | | | | - Aline Marcadenti
- Graduate Program in Health Sciences (Cardiology), Instituto de Cardiologia/Fundação Universitária de Cardiologia do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, 90040-371, Brazil
- Hcor Research Institute, Hcor, São Paulo, São Paulo, 04004-030, Brazil
- Graduate Program in Epidemiology, School of Public Health, University of Sao Paulo, São Paulo, São Paulo, 01246-904, Brazil
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4
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Wang R, Sun J, Yu X. Mediators of the association between nut consumption and cardiovascular diseases: a two-step mendelian randomization study. Sci Rep 2025; 15:829. [PMID: 39755742 PMCID: PMC11700201 DOI: 10.1038/s41598-024-85070-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2024] [Accepted: 12/31/2024] [Indexed: 01/06/2025] Open
Abstract
Previous observational studies have reported inconsistent associations between nut consumption and cardiovascular diseases (CVD). This study aims to identify the causal relationship between different types of nuts consumption and CVD, and to quantify the potential mediating effects of cardiometabolic factors. We utilized Genome-Wide Association Study (GWAS) data to assess the causal effects of nut consumption on CVD using two-sample Mendelian randomization (MR) and a two-step MR analysis. The inverse variance weighted (IVW) method indicated that processed (salted or roasted) peanuts were potentially and positively associated with ischaemic heart disease (IHD) (OR 1.4866; 95%CI 1.0491-2.1065). No causal relationships were found between nuts consumption and other CVD outcomes, including atrial fibrillation, angina, coronary atherosclerosis, coronary heart disease, IHD, myocardial infarction, subarachnoid hemorrhage, intracerebral haemorrhage and stroke. Both MR-Egger and median-based methods yielded similar results to IVW. Furthermore, in the two-step MR analysis, fasting insulin, low-density lipoprotein cholesterol and fasting blood glucose were identified as mediators in the potential causal relationship between processed peanuts and IHD, explaining 16.98%, 6.38% and 4.91% of the mediation, respectively. In total, these mediators accounted for 28.27% of the association between salted or roasted peanuts and IHD.
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Affiliation(s)
- Ruizhe Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Southeast University, Nanjing, People's Republic of China
| | - Jinfang Sun
- Department of Epidemiology and Biostatistics, School of Public Health, Southeast University, Nanjing, People's Republic of China
| | - Xiaojin Yu
- Department of Epidemiology and Biostatistics, School of Public Health, Southeast University, Nanjing, People's Republic of China.
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5
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Zhang Y, Zhang L, Lin L, Zhang Y, Li C, Chen B, Shen Y. Effects of walnut kernel pellicle on the composition and properties of enzymatic hydrolysates of walnut meal by peptidomics and bioinformatics. J Food Sci 2025; 90:e17604. [PMID: 39828404 DOI: 10.1111/1750-3841.17604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2024] [Revised: 10/30/2024] [Accepted: 11/26/2024] [Indexed: 01/22/2025]
Abstract
The purpose of this article is to investigate the effects of walnut (Juglans regia L.) kernel pellicle on the composition and properties of enzymatic hydrolysis products of walnut meal using peptidomics and bioinformatics. In this study, a total of 3423 peptide sequences were identified in peeled walnut protein hydrolysates (PWPH) and unpeeled walnut protein hydrolysates (UWPH). Due to the presence of the walnut kernel pellicle, the enzyme cleavage sites of alkaline proteases on walnut precursor proteins were altered, resulting in differences in the number and length of the peptides obtained. Principal component analysis indicates significant differences between PWPH and UWPH. Combined with bioinformatics analysis, it was shown that walnut kernel peeling improved the release of peptides, formed more bioactive peptides, reduced allergenicity, and improved water solubility. Seven peptides with acetylcholinesterase (AChE) inhibitory activity were identified, and the peptide Val-Gly-Ala-Pro-Phe-Asp-Gly-Ala (VGAPFDGA) has the strongest inhibitory activity with an IC50 of 0.38 ± 0.01 mg/mL. These results confirmed that walnut kernel peeling could greatly change the composition of the walnut protein hydrolysates, and seven novel peptides were reported that showed significant AChE inhibitory activity.
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Affiliation(s)
- Yujiao Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, College of Chemistry and Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi'an, China
| | - Li Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, College of Chemistry and Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi'an, China
| | - Like Lin
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, College of Chemistry and Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi'an, China
| | - Yiran Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, College of Chemistry and Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi'an, China
| | - Cong Li
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, College of Chemistry and Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi'an, China
| | - Bang Chen
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, College of Chemistry and Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi'an, China
| | - Yehua Shen
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, College of Chemistry and Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi'an, China
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Tepavčević S, Zec M, Stojiljković M, Bošković M, Ćulafić T, Stanković A, Romić S, Živković M, Korićanac G. Unlocking the Cardiovascular Benefits of Walnuts: Insights on Molecular Mechanism From Animal Studies. Nutr Rev 2024:nuae173. [PMID: 39565929 DOI: 10.1093/nutrit/nuae173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2024] Open
Abstract
The health-promoting benefits of walnut consumption are substantially ascribed to its fatty acid (FA) profile, which is rich in polyunsaturated FA with an exceptionally high n-3 to n-6 ratio. There are also phytonutrients in walnuts that are linked to health welfare. This review article integrates all studies on the effects of walnuts on the cardiovascular system performed on experimental animals, and thus is a source of data on the mechanisms underlying the observed effects. These studies, which are very diverse in experimental design, indicate that a diet enriched with walnuts or treating animals with walnut extract or chemical constituents of walnuts, has many favorable effects on heart and vascular system function. The cardiovascular effect of walnuts depends on the metabolic status of the organism. Among the cardiovascular effects of walnuts is that they improve the FA profile in the circulation and heart in favor of n-3 polyunsaturated FAs. In addition, a favorable effect on triglyceride and cholesterol status, which reduces cardiovascular disease risk, is observed. Intake of walnuts promotes FA catabolism and has anti-inflammatory, antioxidant, and antiarrhythmic effects. Walnuts also have a beneficial effect on vascular tone, accompanied by a decrease in blood pressure and reduced risk for atherosclerosis. In conclusion, studies on experimental animals encourage the consumption of walnuts as a simple, convenient approach to improve cardiovascular health.
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Affiliation(s)
- Snežana Tepavčević
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11001 Belgrade, Serbia
| | - Manja Zec
- Colorado Program for Musculoskeletal Research, Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, United States
| | - Mojca Stojiljković
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11001 Belgrade, Serbia
| | - Maja Bošković
- Laboratory for Radiobiology and Molecular Genetics, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11001 Belgrade, Serbia
| | - Tijana Ćulafić
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11001 Belgrade, Serbia
| | - Aleksandra Stanković
- Laboratory for Radiobiology and Molecular Genetics, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11001 Belgrade, Serbia
| | - Snježana Romić
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11001 Belgrade, Serbia
| | - Maja Živković
- Laboratory for Radiobiology and Molecular Genetics, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11001 Belgrade, Serbia
| | - Goran Korićanac
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11001 Belgrade, Serbia
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7
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Tark JY, Li R, Yu B, Wood AC, Padhye NS, de Oliveira Otto MC. Protein Consumption and Risk of CVD Among U.S. Adults: The Multi-Ethnic Study of Atherosclerosis (MESA). Nutrients 2024; 16:3773. [PMID: 39519606 PMCID: PMC11548220 DOI: 10.3390/nu16213773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2024] [Revised: 10/29/2024] [Accepted: 10/29/2024] [Indexed: 11/16/2024] Open
Abstract
BACKGROUND Although some randomized trials have reported beneficial effects of protein intake on cardiometabolic risk factors, evidence from prospective studies have not supported a strong link between protein intake and cardiovascular disease (CVD) risk. It is also unclear whether diversity in protein intake plays a role in CVD risk. OBJECTIVE We investigated prospective associations of (1) protein intake, overall and by food source and (2) diversity of protein sources with risk of CVD, coronary heart disease (CHD), and stroke. METHODS In a multi-ethnic cohort of 5879 U.S. adults (45-84 years), who were free of CVD at baseline, protein intake was assessed at baseline (2000-2002) using a validated 120-item food frequency questionnaire. Two different aspects of protein diversity were assessed including count (number of protein food consumed at least once/week) and dissimilarity (diversity of the attributes of the protein sources consumed). Relationships with incident CVD outcomes through 2019 were assessed using Cox proportional hazards models adjusting for sociodemographic, lifestyle, and comorbidity factors. RESULTS During 83,430 person-years, 1045 CVD cases were identified, including 668 CHD and 332 stroke cases. In multivariable models, we found no significant associations between protein intake, overall and by food source, with incident CVD, CHD, or stroke. Protein count, but not protein dissimilarity, was weakly associated with CVD risk. We found no significant associations between diversity of consumption of animal or plant food source and CVD outcomes. CONCLUSIONS Our findings suggest protein consumption may not significantly impact CVD risk in middle-aged adults.
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Affiliation(s)
- Ji Yun Tark
- Department of Epidemiology, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
- Section of Epidemiology and Population Sciences, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Ruosha Li
- Department of Biostatistics and Data Science, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Bing Yu
- Department of Epidemiology, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Alexis C Wood
- Department of Pediatrics, USDA/ARS Children's Nutrition Research Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Nikhil S Padhye
- Department of Research, School of Nursing, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Marcia C de Oliveira Otto
- Department of Epidemiology, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
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8
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Reynolds LM, Houston DK, Skiba MB, Whitsel EA, Stewart JD, Li Y, Zannas AS, Assimes TL, Horvath S, Bhatti P, Baccarelli AA, Tooze JA, Vitolins MZ. Diet Quality and Epigenetic Aging in the Women's Health Initiative. J Acad Nutr Diet 2024; 124:1419-1430.e3. [PMID: 38215906 PMCID: PMC11236955 DOI: 10.1016/j.jand.2024.01.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 12/05/2023] [Accepted: 01/08/2024] [Indexed: 01/14/2024]
Abstract
BACKGROUND Higher diet quality scores are associated with a lower risk for many chronic diseases and all-cause mortality; however, it is unclear if diet quality is associated with aging biology. OBJECTIVE This study aimed to examine the association between diet quality and a measure of biological aging known as epigenetic aging. DESIGN A cross-sectional data analysis was used to examine the association between three diet quality scores based on self-reported food frequency questionnaire data and five measures of epigenetic aging based on DNA methylation (DNAm) data from peripheral blood. PARTICIPANTS/SETTING This study included 4,500 postmenopausal women recruited from multiple sites across the United States (1993-98), aged 50 to 79 years, with food frequency questionnaire and DNAm data available from the Women's Health Initiative baseline visit. MAIN OUTCOME MEASURES Five established epigenetic aging measures were generated from HumanMethylation450 Beadchip DNAm data, including AgeAccelHannum, AgeAccelHorvath, AgeAccelPheno, AgeAccelGrim, and DunedinPACE. STATISTICAL ANALYSES PERFORMED Linear mixed models were used to test for associations between three diet quality scores (Healthy Eating Index, Dietary Approaches to Stop Hypertension, and alternate Mediterranean diet scores) and epigenetic aging measures, adjusted for age, race and ethnicity, education, tobacco smoking, physical activity, Women's Health Initiative substudy from which DNAm data were obtained, and DNAm-based estimates of leukocyte proportions. RESULTS Healthy Eating Index, Dietary Approaches to Stop Hypertension, and alternate Mediterranean diet scores were all inversely associated with AgeAccelPheno, AgeAccelGrim, and DunedinPACE (P < 0.05), with the largest effects with DunedinPACE. A one standard deviation increment in diet quality scores was associated with a decrement (β ± SE) in DunedinPACE z score of -0.097 ± 0.014 (P = 9.70 x 10-13) for Healthy Eating Index, -0.107 ± 0.014 (P = 1.53 x 10-14) for Dietary Approaches to Stop Hypertension, and -0.068 ± 0.013 (P = 2.31 x 10-07) for the alternate Mediterranean diet. CONCLUSIONS In postmenopausal women, diet quality scores were inversely associated with DNAm-based measures of biological aging, particularly DunedinPACE.
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Affiliation(s)
- Lindsay M Reynolds
- Division of Public Health Sciences, Wake Forest University School of Medicine, Winston-Salem, North Carolina.
| | - Denise K Houston
- Department of Internal Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina
| | - Meghan B Skiba
- Division of Biobehavioral Health Science, University of Arizona Cancer Center, University of Arizona, Tucson, Arizona
| | - Eric A Whitsel
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina
| | - James D Stewart
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina; Department of Medicine, School of Medicine, University of North Carolina, Chapel Hill, North Carolina
| | - Yun Li
- Department of Genetics, School of Medicine, University of North Carolina, Chapel Hill, North Carolina; Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina
| | - Anthony S Zannas
- Department of Psychiatry, University of North Carolina, Chapel Hill, North Carolina
| | - Themistocles L Assimes
- Division of Cardiovascular Medicine, Department of Medicine, Stanford University School of Medicine, Palo Alto, California
| | - Steve Horvath
- Department of Human Genetics, University of California Los Angeles, Los Angeles, California; Altos Labs, San Diego, California
| | - Parveen Bhatti
- Cancer Control Research, BC Cancer Research Institute, Vancouver, British Columbia, Canada; School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada
| | - Andrea A Baccarelli
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York
| | - Janet A Tooze
- Division of Public Health Sciences, Wake Forest University School of Medicine, Winston-Salem, North Carolina
| | - Mara Z Vitolins
- Division of Public Health Sciences, Wake Forest University School of Medicine, Winston-Salem, North Carolina
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9
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Bersch-Ferreira ÂC, Weschenfelder C, Vieira Machado RH, Nakagawa Santos RH, Riley TM, da Silva LR, Miyada DHK, Sady ERR, de Abreu-Silva EO, Laranjeira LN, de Quadros AS, Dos Santos JL, Souza GC, Parahiba SM, Fayh APT, Bezerra DS, Carvalho APPF, Machado MMA, Vasconcelos SML, Santos MVR, de Figueiredo Neto JA, Dias LPP, Zaina Nagano FE, de Almeida CCP, Moreira ASB, de Oliveira RD, Rogero MM, Sampaio GR, da Silva Torres EAF, Weber B, Cavalcanti AB, Marcadenti A. Effects of mixed nuts as part of a Brazilian Cardioprotective diet on LDL-cholesterol in adult patients after myocardial infarction: a multicenter randomized controlled clinical trial. Nutr J 2024; 23:118. [PMID: 39354558 PMCID: PMC11445998 DOI: 10.1186/s12937-024-01020-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 09/17/2024] [Indexed: 10/03/2024] Open
Abstract
BACKGROUND Nuts consumption is related to cardioprotective effects on primary cardiovascular prevention, but studies conducted in secondary prevention are small, scarce and controversial. The objective of this trial was to evaluate the effects of a regional and sustainable cardioprotective diet added or not with an affordable mixed nuts on cardiometabolic features in patients with previous myocardial infarction. METHODS DICA-NUTS study is a national, multi-center, and superiority-parallel randomized clinical trial. Males and females over 40 years old diagnosed with previous myocardial infarction in the last 2 to 6 months were included. Patients were allocated into two groups: the Brazilian Cardioprotective diet (DICA Br) supplemented with 30 g/day of mixed nuts (10 g of peanuts; 10 g of cashew; 10 g of Brazil nuts) (intervention group, n = 193); or only DICA Br prescription (control group, n = 195). The primary outcome was low-density lipoprotein cholesterol means (in mg/dL) after 16 weeks. Secondary outcomes were other lipid biomarkers, glycemic and anthropometric data and diet quality. RESULTS After adjustment for baseline values, participating study site, time since myocardial infarction and statin treatment regimen (high potency, moderate and low potency/no statins), no significant difference was found between the groups in low-density lipoprotein cholesterol concentrations (intervention-control difference: 3.48 mg/dL [-3.45 to 10.41], P = 0.32). Both groups improved their overall diet quality at the end of the study without differences between them after 16 weeks (intervention-control difference: 1.05 (-0.9 to 2.99); P = 0.29). Other lipids, glycemic profile and anthropometrics were also not different between study groups at the end of the study. CONCLUSION Adding 30 g/day of mixed nuts to the DICA Br for 16 weeks did not change lipid, glycemic and anthropometric features in the post-myocardial infarction setting. TRIAL REGISTRATION This study is registered on ClinicalTrials.gov website under number NCT03728127 and its World Health Organization Universal Trial Number (WHO-UTN) is U1111-1259-8105.
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Grants
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- NUPs: 25000.009770/2018-86 and 25000.184506/2020-45 Hcor as part of the "Hospitais de Excelência a Serviço do SUS", in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
- Hcor as part of the “Hospitais de Excelência a Serviço do SUS”, in partnership with the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS) and Brazilian Ministry of Health. The sponsor had no role in study design; collection, management, analysis, and interpretation of data; and writing of the report.
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Affiliation(s)
- Ângela Cristine Bersch-Ferreira
- Department of Education and Research, BP - Beneficência Portuguesa de São Paulo, São Paulo, SP, Brazil
- Hcor Research Institute, 200 Desembargador Eliseu Guilherme, 8th Floor, São Paulo, SP, Zip Code 04004-030, Brazil
| | - Camila Weschenfelder
- Graduate Program in Health Sciences (Cardiology), Instituto de Cardiologia/Fundação Universitária de Cardiologia Do Rio Grande Do Sul, Porto Alegre, RS, Brazil
| | - Rachel Helena Vieira Machado
- Hcor Research Institute, 200 Desembargador Eliseu Guilherme, 8th Floor, São Paulo, SP, Zip Code 04004-030, Brazil
| | - Renato Hideo Nakagawa Santos
- Hcor Research Institute, 200 Desembargador Eliseu Guilherme, 8th Floor, São Paulo, SP, Zip Code 04004-030, Brazil
| | - Terrence M Riley
- Pennington Biomedical Research Center, Baton Rouge, LA, United States of America
| | - Lucas Ribeiro da Silva
- Hcor Research Institute, 200 Desembargador Eliseu Guilherme, 8th Floor, São Paulo, SP, Zip Code 04004-030, Brazil
| | - Debora Harumi Kodama Miyada
- Hcor Research Institute, 200 Desembargador Eliseu Guilherme, 8th Floor, São Paulo, SP, Zip Code 04004-030, Brazil
| | - Erica Regina Ribeiro Sady
- Hcor Research Institute, 200 Desembargador Eliseu Guilherme, 8th Floor, São Paulo, SP, Zip Code 04004-030, Brazil
| | - Erlon Oliveira de Abreu-Silva
- Hcor Research Institute, 200 Desembargador Eliseu Guilherme, 8th Floor, São Paulo, SP, Zip Code 04004-030, Brazil
- Master`S Program in Clinical Research, Dresden International University, Dresden, Germany
| | - Ligia Nasi Laranjeira
- Hcor Research Institute, 200 Desembargador Eliseu Guilherme, 8th Floor, São Paulo, SP, Zip Code 04004-030, Brazil
| | - Alexandre Schaan de Quadros
- Graduate Program in Health Sciences (Cardiology), Instituto de Cardiologia/Fundação Universitária de Cardiologia Do Rio Grande Do Sul, Porto Alegre, RS, Brazil
| | - Júlia Lorenzon Dos Santos
- Graduate Program in Health Sciences (Cardiology), Instituto de Cardiologia/Fundação Universitária de Cardiologia Do Rio Grande Do Sul, Porto Alegre, RS, Brazil
| | - Gabriela Corrêa Souza
- Graduation Program in Food, Nutrition and Health, Faculdade de Medicina, Universidade Federal Do Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Suena Medeiros Parahiba
- Graduation Program in Food, Nutrition and Health, Faculdade de Medicina, Universidade Federal Do Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Ana Paula Trussardi Fayh
- PesqClin Lab, Onofre Lopes University Hospital, Brazilian Company of Hospital Services (EBSERH), Universidade Federal Do Rio Grande Do Norte, Natal, RN, Brazil
| | - Danielle Soares Bezerra
- Faculty of Health Science of Trairi, Universidade Federal Do Rio Grande Do Norte (FACISA-UFRN), Santa Cruz, RN, Brazil
| | | | | | | | | | | | | | | | | | | | | | - Marcelo Macedo Rogero
- Department of Nutrition, School of Public Health, Universidade de São Paulo (USP), São Paulo, SP, Brazil
| | - Geni Rodrigues Sampaio
- Department of Nutrition, School of Public Health, Universidade de São Paulo (USP), São Paulo, SP, Brazil
| | | | - Bernardete Weber
- PROADI-SUS Office, Real e Benemérita Associação Portuguesa de Beneficência, São Paulo, SP, Brazil
| | - Alexandre Biasi Cavalcanti
- Hcor Research Institute, 200 Desembargador Eliseu Guilherme, 8th Floor, São Paulo, SP, Zip Code 04004-030, Brazil
| | - Aline Marcadenti
- Hcor Research Institute, 200 Desembargador Eliseu Guilherme, 8th Floor, São Paulo, SP, Zip Code 04004-030, Brazil.
- Graduate Program in Health Sciences (Cardiology), Instituto de Cardiologia/Fundação Universitária de Cardiologia Do Rio Grande Do Sul, Porto Alegre, RS, Brazil.
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10
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Bersch-Ferreira ÂC, Stein E, Waclawovsky G, da Silva LR, Machado RHV, Weschenfelder C, Figueiro MF, Suzumura EA, Santos RHN, Duarte GBS, Rogero MM, de Abreu-Silva EO, Cavalcanti AB, Marcadenti A. Effect of nuts on lipid profile and inflammatory biomarkers in atherosclerotic cardiovascular disease: a systematic review and meta-analysis of randomized controlled trials. Eur J Nutr 2024; 63:2391-2405. [PMID: 38967674 DOI: 10.1007/s00394-024-03455-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 06/17/2024] [Indexed: 07/06/2024]
Abstract
PURPOSE Nut-enriched diets are related to improve lipid and inflammatory biomarkers in meta-analyses in the context of primary cardiovascular prevention. However, primary studies on secondary cardiovascular prevention are scarce and controversial. This systematic review and meta-analysis aimed to evaluate the effect of nut supplementation on lipid and inflammatory profiles in individuals with atherosclerotic cardiovascular disease, and the frequency of adverse events. METHODS Six databases were used for research: PubMed, EMBASE, BVS, Cochrane Library, Web of Science, and ClinicalTrials.gov, until February 2023, with no language restrictions. We performed random-effects meta-analyses to compare nut-enriched diets vs. control diets for pre-post intervention changes. The Grading of Recommendations Assessment, Development and Evaluation (GRADE) system assessed the evidence's certainty. RESULTS From the 5187 records identified, eight publications containing data referring to five randomized clinical trials involving 439 participants were included in the final analyses. The nuts evaluated were almonds, pecans, Brazil nuts, and mixed nuts, with doses ranging between 5 g and 85 g (median: 30 g/day). The intervention time varied between 6 and 12 weeks. Compared to nut-free diets, nut intake did not have a statistically significant effect on lipid profile biomarkers, except on the atherogenic index (MD: -0.32 [95% CI -0.58 to -0.06], I2 = 0% - moderate certainty of the evidence). Similarly, there was no effect of nuts on inflammatory profile biomarkers. It was not possible to aggregate data on adverse events. CONCLUSIONS Nut supplementation did not change lipid and inflammatory profiles in the secondary cardiovascular prevention setting.
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Affiliation(s)
- Ângela C Bersch-Ferreira
- Hcor Teaching Institute, Hcor, São Paulo, São Paulo, Brazil
- PROADI-SUS Office, Real e Benemérita Associação Portuguesa de Beneficência, São Paulo, São Paulo, Brazil
| | - Elana Stein
- Graduate Program in Health Sciences (Cardiology), Instituto de Cardiologia/Fundação Universitária de Cardiologia do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Gustavo Waclawovsky
- Graduate Program in Health Sciences (Cardiology), Instituto de Cardiologia/Fundação Universitária de Cardiologia do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | | | - Rachel H V Machado
- Hcor Research Institute, 200 Desembargador Eliseu Guilherme, 8th floor, Hcor, São Paulo, São Paulo, 04004-030, Brazil
| | - Camila Weschenfelder
- Graduate Program in Health Sciences (Cardiology), Instituto de Cardiologia/Fundação Universitária de Cardiologia do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | | | - Erica A Suzumura
- Preventive Medicine Department, School of Medicine, University of Sao Paulo, São Paulo, São Paulo, Brazil
| | - Renato H N Santos
- Hcor Research Institute, 200 Desembargador Eliseu Guilherme, 8th floor, Hcor, São Paulo, São Paulo, 04004-030, Brazil
| | | | - Marcelo M Rogero
- Department of Nutrition, School of Public Health, University of Sao Paulo, São Paulo, São Paulo, Brazil
| | - Erlon O de Abreu-Silva
- Hcor Research Institute, 200 Desembargador Eliseu Guilherme, 8th floor, Hcor, São Paulo, São Paulo, 04004-030, Brazil
- Division of Health Care Sciences, Dresden International University, Dresden, Germany
| | - Alexandre B Cavalcanti
- Hcor Research Institute, 200 Desembargador Eliseu Guilherme, 8th floor, Hcor, São Paulo, São Paulo, 04004-030, Brazil
| | - Aline Marcadenti
- Graduate Program in Health Sciences (Cardiology), Instituto de Cardiologia/Fundação Universitária de Cardiologia do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
- Hcor Research Institute, 200 Desembargador Eliseu Guilherme, 8th floor, Hcor, São Paulo, São Paulo, 04004-030, Brazil.
- Graduate Program in Epidemiology, School of Public Health, University of Sao Paulo, São Paulo, São Paulo, Brazil.
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11
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Sequeira-Bisson IR, Lu LW, Silvestre MP, Plank LD, Middleditch N, Acevedo-Fani A, Parry-Strong A, Hollingsworth KG, Tups A, Miles-Chan JL, Krebs JD, Foster M, Poppitt SD. Glycaemic Response to a Nut-Enriched Diet in Asian Chinese Adults with Normal or High Glycaemia: The Tū Ora RCT. Nutrients 2024; 16:2103. [PMID: 38999851 PMCID: PMC11243085 DOI: 10.3390/nu16132103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 06/27/2024] [Accepted: 06/28/2024] [Indexed: 07/14/2024] Open
Abstract
Nut-based products are a good source of high-quality plant protein in addition to mono- and polyunsaturated fatty acids, and may aid low-glycaemic dietary strategies important for the prevention of type 2 diabetes (T2D). In particular, they may be advantageous in populations susceptible to dysglycaemia, such as Asian Chinese. The present study aimed to compare effects of a higher-protein nut bar (HP-NB, also higher in total fibre and unsaturated fats, comprising mixed almonds and peanuts) vs. an isoenergetic higher-carbohydrate cereal bar (HC-CB) within the diet of 101 Chinese adults with overweight and normo- or hyperglycaemia. Ectopic pancreas and liver fat were characterised using magnetic resonance imaging and spectroscopy (MRI/S) as a secondary outcome. Participants were randomized to receive HP-NB or HC-CB daily as a 1 MJ light meal or snack replacement, in addition to healthy eating advice. Anthropometry and clinical indicators of T2D risk were assessed fasted and during an oral glucose tolerance test (OGTT), pre- and post-intervention. No significant difference was observed between diet groups for body weight, body mass index, waist or hip circumference, blood pressure, glucoregulatory markers, lipid profile or inflammatory markers over 12 weeks (all, p > 0.05). No difference was observed between glycaemic subgroups or those with normal versus high ectopic organ fat. Although HP-NB can attenuate postprandial glycaemia following a meal, no effects were observed for either fasting or glucose-mediated outcomes following longer-term inclusion in the habitual diet of Chinese adults with overweight, including at-risk subgroups.
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Affiliation(s)
- Ivana R. Sequeira-Bisson
- Human Nutrition Unit, School of Biological Sciences, University of Auckland, Auckland 1024, New Zealand; (I.R.S.-B.); (L.W.L.); (M.P.S.); (J.L.M.-C.)
- High Value Nutrition National Science Challenge, Auckland 1023, New Zealand; (N.M.); (A.A.-F.); (J.D.K.); (M.F.)
- Riddet Institute, Massey University, Palmerston North 4442, New Zealand
| | - Louise W. Lu
- Human Nutrition Unit, School of Biological Sciences, University of Auckland, Auckland 1024, New Zealand; (I.R.S.-B.); (L.W.L.); (M.P.S.); (J.L.M.-C.)
- High Value Nutrition National Science Challenge, Auckland 1023, New Zealand; (N.M.); (A.A.-F.); (J.D.K.); (M.F.)
| | - Marta P. Silvestre
- Human Nutrition Unit, School of Biological Sciences, University of Auckland, Auckland 1024, New Zealand; (I.R.S.-B.); (L.W.L.); (M.P.S.); (J.L.M.-C.)
- High Value Nutrition National Science Challenge, Auckland 1023, New Zealand; (N.M.); (A.A.-F.); (J.D.K.); (M.F.)
- Centro de Investigação em Tecnologias e Serviços de Saúde (CINTESIS), NOVA University of Lisbon, 1169-056 Lisbon, Portugal
| | - Lindsay D. Plank
- Department of Surgery, University of Auckland, Auckland 1023, New Zealand;
| | - Nikki Middleditch
- High Value Nutrition National Science Challenge, Auckland 1023, New Zealand; (N.M.); (A.A.-F.); (J.D.K.); (M.F.)
- School of Food and Advanced Technology, Massey University, Palmerston North 4442, New Zealand
| | - Alejandra Acevedo-Fani
- High Value Nutrition National Science Challenge, Auckland 1023, New Zealand; (N.M.); (A.A.-F.); (J.D.K.); (M.F.)
- Riddet Institute, Massey University, Palmerston North 4442, New Zealand
| | - Amber Parry-Strong
- Department of Medicine, University of Otago, Dunedin 9054, New Zealand;
- Centre for Endocrine, Diabetes and Obesity Research (CEDOR), Te Whatu Ora, Capital and Coast Health, Wellington 6242, New Zealand
| | - Kieren G. Hollingsworth
- Translational and Clinical Research Institute, Faculty of Medical Science, Newcastle University, Newcastle-upon-Tyne NE1 7RU, UK
| | - Alexander Tups
- Centre for Neuroendocrinology, University of Otago, Dunedin 9054, New Zealand;
| | - Jennifer L. Miles-Chan
- Human Nutrition Unit, School of Biological Sciences, University of Auckland, Auckland 1024, New Zealand; (I.R.S.-B.); (L.W.L.); (M.P.S.); (J.L.M.-C.)
- High Value Nutrition National Science Challenge, Auckland 1023, New Zealand; (N.M.); (A.A.-F.); (J.D.K.); (M.F.)
- Riddet Institute, Massey University, Palmerston North 4442, New Zealand
| | - Jeremy D. Krebs
- High Value Nutrition National Science Challenge, Auckland 1023, New Zealand; (N.M.); (A.A.-F.); (J.D.K.); (M.F.)
- Department of Medicine, University of Otago, Dunedin 9054, New Zealand;
- Centre for Endocrine, Diabetes and Obesity Research (CEDOR), Te Whatu Ora, Capital and Coast Health, Wellington 6242, New Zealand
| | - Meika Foster
- High Value Nutrition National Science Challenge, Auckland 1023, New Zealand; (N.M.); (A.A.-F.); (J.D.K.); (M.F.)
- Edible Research Ltd., Ohoka, Christchurch 7475, New Zealand
| | - Sally D. Poppitt
- Human Nutrition Unit, School of Biological Sciences, University of Auckland, Auckland 1024, New Zealand; (I.R.S.-B.); (L.W.L.); (M.P.S.); (J.L.M.-C.)
- High Value Nutrition National Science Challenge, Auckland 1023, New Zealand; (N.M.); (A.A.-F.); (J.D.K.); (M.F.)
- Riddet Institute, Massey University, Palmerston North 4442, New Zealand
- Department of Medicine, University of Auckland, Auckland 1023, New Zealand
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Faraj S, Sequeira-Bisson IR, Lu L, Miles-Chan JL, Hoggard M, Barnett D, Parry-Strong A, Foster M, Krebs JD, Poppitt SD, Taylor MW, Mathrani A. Effect of a Higher-Protein Nut versus Higher-Carbohydrate Cereal Enriched Diet on the Gut Microbiomes of Chinese Participants with Overweight and Normoglycaemia or Prediabetes in the Tū Ora Study. Nutrients 2024; 16:1971. [PMID: 38931324 PMCID: PMC11206330 DOI: 10.3390/nu16121971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 06/11/2024] [Accepted: 06/17/2024] [Indexed: 06/28/2024] Open
Abstract
Global increases in metabolic disorders such as type 2 diabetes (T2D), especially within Asian populations, highlight the need for novel approaches to dietary intervention. The Tū Ora study previously evaluated the effects on metabolic health of including a nut product into the diet of a New Zealand cohort of Chinese participants with overweight and normoglycaemia or prediabetes through a 12-week randomised, parallel-group clinical trial. In this current study, we compared the impact of this higher-protein nut bar (HP-NB) versus a higher-carbohydrate cereal bar (HC-CB) on the faecal microbiome by employing both 16S rRNA gene amplicon and shotgun metagenomic sequencing of pre- and post-intervention pairs from 84 participants. Despite the higher fibre, protein, and unsaturated fat content of nuts, there was little difference between dietary groups in gut microbiome composition or functional potential, with the bacterial phylum Firmicutes dominating irrespective of diet. The lack of observed change suggests the dietary impact of the bars may have been insufficient to affect the gut microbiome. Manipulating the interplay between the diet, microbiome, and metabolic health may require a more substantial and/or prolonged dietary perturbation to generate an impactful modification of the gut ecosystem and its functional potential to aid in T2D risk reduction.
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Affiliation(s)
- Saif Faraj
- Human Nutrition Unit, University of Auckland, Auckland 1024, New Zealand; (S.F.); (I.R.S.-B.); (L.L.); (J.L.M.-C.); (S.D.P.)
- High-Value Nutrition National Science Challenge, Auckland 1023, New Zealand; (A.P.-S.); (M.F.); (J.D.K.)
- School of Biological Sciences, University of Auckland, Auckland 1010, New Zealand;
| | - Ivana R. Sequeira-Bisson
- Human Nutrition Unit, University of Auckland, Auckland 1024, New Zealand; (S.F.); (I.R.S.-B.); (L.L.); (J.L.M.-C.); (S.D.P.)
- High-Value Nutrition National Science Challenge, Auckland 1023, New Zealand; (A.P.-S.); (M.F.); (J.D.K.)
- School of Biological Sciences, University of Auckland, Auckland 1010, New Zealand;
| | - Louise Lu
- Human Nutrition Unit, University of Auckland, Auckland 1024, New Zealand; (S.F.); (I.R.S.-B.); (L.L.); (J.L.M.-C.); (S.D.P.)
- High-Value Nutrition National Science Challenge, Auckland 1023, New Zealand; (A.P.-S.); (M.F.); (J.D.K.)
- School of Biological Sciences, University of Auckland, Auckland 1010, New Zealand;
| | - Jennifer L. Miles-Chan
- Human Nutrition Unit, University of Auckland, Auckland 1024, New Zealand; (S.F.); (I.R.S.-B.); (L.L.); (J.L.M.-C.); (S.D.P.)
- High-Value Nutrition National Science Challenge, Auckland 1023, New Zealand; (A.P.-S.); (M.F.); (J.D.K.)
- School of Biological Sciences, University of Auckland, Auckland 1010, New Zealand;
| | - Michael Hoggard
- School of Biological Sciences, University of Auckland, Auckland 1010, New Zealand;
| | - Daniel Barnett
- Department of Statistics, University of Auckland, Auckland 1010, New Zealand;
| | - Amber Parry-Strong
- High-Value Nutrition National Science Challenge, Auckland 1023, New Zealand; (A.P.-S.); (M.F.); (J.D.K.)
- Department of Medicine, University of Otago, Dunedin 9054, New Zealand
- Centre for Endocrine, Diabetes and Obesity Research (CEDOR), Te Whatu Ora, Capital and Coast Health, Wellington P.O. Box 7902, New Zealand
| | - Meika Foster
- High-Value Nutrition National Science Challenge, Auckland 1023, New Zealand; (A.P.-S.); (M.F.); (J.D.K.)
- Edible Research, Ohoka, Christchurch 7475, New Zealand
| | - Jeremy D. Krebs
- High-Value Nutrition National Science Challenge, Auckland 1023, New Zealand; (A.P.-S.); (M.F.); (J.D.K.)
- Department of Medicine, University of Otago, Dunedin 9054, New Zealand
- Centre for Endocrine, Diabetes and Obesity Research (CEDOR), Te Whatu Ora, Capital and Coast Health, Wellington P.O. Box 7902, New Zealand
| | - Sally D. Poppitt
- Human Nutrition Unit, University of Auckland, Auckland 1024, New Zealand; (S.F.); (I.R.S.-B.); (L.L.); (J.L.M.-C.); (S.D.P.)
- High-Value Nutrition National Science Challenge, Auckland 1023, New Zealand; (A.P.-S.); (M.F.); (J.D.K.)
- School of Biological Sciences, University of Auckland, Auckland 1010, New Zealand;
| | - Michael W. Taylor
- High-Value Nutrition National Science Challenge, Auckland 1023, New Zealand; (A.P.-S.); (M.F.); (J.D.K.)
- School of Biological Sciences, University of Auckland, Auckland 1010, New Zealand;
| | - Akarsh Mathrani
- High-Value Nutrition National Science Challenge, Auckland 1023, New Zealand; (A.P.-S.); (M.F.); (J.D.K.)
- School of Biological Sciences, University of Auckland, Auckland 1010, New Zealand;
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Takić M, Ranković S, Girek Z, Pavlović S, Jovanović P, Jovanović V, Šarac I. Current Insights into the Effects of Dietary α-Linolenic Acid Focusing on Alterations of Polyunsaturated Fatty Acid Profiles in Metabolic Syndrome. Int J Mol Sci 2024; 25:4909. [PMID: 38732139 PMCID: PMC11084241 DOI: 10.3390/ijms25094909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 04/16/2024] [Accepted: 04/26/2024] [Indexed: 05/13/2024] Open
Abstract
The plant-derived α-linolenic acid (ALA) is an essential n-3 acid highly susceptible to oxidation, present in oils of flaxseeds, walnuts, canola, perilla, soy, and chia. After ingestion, it can be incorporated in to body lipid pools (particularly triglycerides and phospholipid membranes), and then endogenously metabolized through desaturation, elongation, and peroxisome oxidation to eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), with a very limited efficiency (particularly for DHA), beta-oxidized as an energy source, or directly metabolized to C18-oxilipins. At this moment, data in the literature about the effects of ALA supplementation on metabolic syndrome (MetS) in humans are inconsistent, indicating no effects or some positive effects on all MetS components (abdominal obesity, dyslipidemia, impaired insulin sensitivity and glucoregulation, blood pressure, and liver steatosis). The major effects of ALA on MetS seem to be through its conversion to more potent EPA and DHA, the impact on the n-3/n-6 ratio, and the consecutive effects on the formation of oxylipins and endocannabinoids, inflammation, insulin sensitivity, and insulin secretion, as well as adipocyte and hepatocytes function. It is important to distinguish the direct effects of ALA from the effects of EPA and DHA metabolites. This review summarizes the most recent findings on this topic and discusses the possible mechanisms.
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Affiliation(s)
- Marija Takić
- Centre of Research Excellence in Nutrition and Metabolism, Group for Nutrition and Metabolism, National Institute of Republic of Serbia, Institute for Medical Research, University of Belgrade, Tadeuša Košćuska 1, 11000 Belgrade, Serbia; (S.R.); (S.P.); (P.J.); (I.Š.)
| | - Slavica Ranković
- Centre of Research Excellence in Nutrition and Metabolism, Group for Nutrition and Metabolism, National Institute of Republic of Serbia, Institute for Medical Research, University of Belgrade, Tadeuša Košćuska 1, 11000 Belgrade, Serbia; (S.R.); (S.P.); (P.J.); (I.Š.)
| | - Zdenka Girek
- Centre of Research Excellence in Nutrition and Metabolism, Group for Nutrition and Metabolism, National Institute of Republic of Serbia, Institute for Medical Research, University of Belgrade, Tadeuša Košćuska 1, 11000 Belgrade, Serbia; (S.R.); (S.P.); (P.J.); (I.Š.)
| | - Suzana Pavlović
- Centre of Research Excellence in Nutrition and Metabolism, Group for Nutrition and Metabolism, National Institute of Republic of Serbia, Institute for Medical Research, University of Belgrade, Tadeuša Košćuska 1, 11000 Belgrade, Serbia; (S.R.); (S.P.); (P.J.); (I.Š.)
| | - Petar Jovanović
- Centre of Research Excellence in Nutrition and Metabolism, Group for Nutrition and Metabolism, National Institute of Republic of Serbia, Institute for Medical Research, University of Belgrade, Tadeuša Košćuska 1, 11000 Belgrade, Serbia; (S.R.); (S.P.); (P.J.); (I.Š.)
- Department of Biochemistry and Centre of Excellence for Molecular Food Sciences, Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11158 Belgrade, Serbia;
| | - Vesna Jovanović
- Department of Biochemistry and Centre of Excellence for Molecular Food Sciences, Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11158 Belgrade, Serbia;
| | - Ivana Šarac
- Centre of Research Excellence in Nutrition and Metabolism, Group for Nutrition and Metabolism, National Institute of Republic of Serbia, Institute for Medical Research, University of Belgrade, Tadeuša Košćuska 1, 11000 Belgrade, Serbia; (S.R.); (S.P.); (P.J.); (I.Š.)
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14
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Fadnes LT, Balakrishna R. Nuts and seeds - a scoping review for Nordic Nutrition Recommendations 2023. Food Nutr Res 2024; 68:10483. [PMID: 38370112 PMCID: PMC10870978 DOI: 10.29219/fnr.v68.10483] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 08/29/2022] [Accepted: 01/03/2024] [Indexed: 02/20/2024] Open
Abstract
Background Nuts and seeds have been part of diets in most of the world for millenniums, and they have also been consumed in the Nordic and Baltic countries for centuries. Consumption of nuts and seeds is linked with various health outcomes. Therefore, when updating the Nordic Nutrition Recommendations (NNR), summarizing the best evidence on key health outcomes from the consumption of nuts and seeds is essential. Objectives This study aims to evaluate the updated evidence on the consumption of nuts and seeds and health outcomes regarded relevant for the Nordic and Baltic countries, as well as their dose-response relationship presented in updated systematic reviews and meta-analyses. Method The scoping review is built on a de novo systematic review and an umbrella review published in 2022 on the consumption of nuts and seeds and its various health outcomes, including cardiovascular disease and diabetes. Results Intake of nuts and seeds is associated with a lower risk of cardiovascular diseases, with evidence assessed as probable. This conclusion is mirrored by evidence from trials on biomarkers for chronic diseases. An intake of a serving of nuts of 28-30 g/day compared to not eating nuts is estimated to translate into approximately 20% relative reduction in the risks of cardiovascular disease and premature deaths. For cancers, consumption of a serving of nuts is inversely associated with cancer mortality. However, for type 2 diabetes, there are mixed and inconclusive results. Additionally, there are inverse associations between nut consumption and respiratory and infectious disease mortality. Allergies for nuts are seen among 1-2% of the population. Conclusion Overall, the current evidence supports dietary recommendations to increase nut consumption to a serving of nuts and seeds per day for people without allergies to these foods.
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Affiliation(s)
- Lars T. Fadnes
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
- Bergen Addiction Research, Department of Addiction Medicine, Haukeland University Hospital, Bergen, Norway
| | - Rajiv Balakrishna
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
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15
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Fogacci F, Di Micoli V, Sabouret P, Giovannini M, Cicero AFG. Lifestyle and Lipoprotein(a) Levels: Does a Specific Counseling Make Sense? J Clin Med 2024; 13:751. [PMID: 38337445 PMCID: PMC10856708 DOI: 10.3390/jcm13030751] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 01/20/2024] [Accepted: 01/26/2024] [Indexed: 02/12/2024] Open
Abstract
Lipoprotein(Lp)(a) is a variant of low-density lipoprotein (LDL), bound to apolipoprotein B100, whose levels are associated with a significant increase in the risk of atherosclerosis-related cardiovascular events, but also to aortic stenosis and atrial fibrillation. Since plasma levels of Lp(a) are commonly considered resistant to lifestyle changes, we critically reviewed the available evidence on the effect of weight loss, dietary supplements, and physical activity on this risk factor. In our review, we observed that relevant body weight loss, a relatively high intake of saturated fatty acids, the consumption of red wine, and intense physical exercise seems to be associated with significantly lower plasma Lp(a) levels. On the contrary, foods rich in trans-unsaturated fatty acids are associated with increased Lp(a) levels. With regard to dietary supplements, coenzyme Q10, L-Carnitine, and flaxseed exert a mild but significant lowering effect on plasma Lp(a).
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Affiliation(s)
- Federica Fogacci
- Hypertension and Cardiovascular Risk Research Center, Medical and Surgical Sciences Department, Alma Mater Studiorum University of Bologna, 40100 Bologna, Italy; (V.D.M.); (M.G.)
| | - Valentina Di Micoli
- Hypertension and Cardiovascular Risk Research Center, Medical and Surgical Sciences Department, Alma Mater Studiorum University of Bologna, 40100 Bologna, Italy; (V.D.M.); (M.G.)
| | - Pierre Sabouret
- INSERM UMRS_1166, Cardiology Institute, Pitié Salpêtrière Hospital (AP-HP), ACTION Study Group, Sorbonne University, 75013 Paris, France;
| | - Marina Giovannini
- Hypertension and Cardiovascular Risk Research Center, Medical and Surgical Sciences Department, Alma Mater Studiorum University of Bologna, 40100 Bologna, Italy; (V.D.M.); (M.G.)
| | - Arrigo F. G. Cicero
- Hypertension and Cardiovascular Risk Research Center, Medical and Surgical Sciences Department, Alma Mater Studiorum University of Bologna, 40100 Bologna, Italy; (V.D.M.); (M.G.)
- Cardiovascular Medicine Unit, Heart, Thoracic and Vascular Department, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40100 Bologna, Italy
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16
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Kim OY, Song J. Important roles of linoleic acid and α-linolenic acid in regulating cognitive impairment and neuropsychiatric issues in metabolic-related dementia. Life Sci 2024; 337:122356. [PMID: 38123015 DOI: 10.1016/j.lfs.2023.122356] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 12/02/2023] [Accepted: 12/13/2023] [Indexed: 12/23/2023]
Abstract
Metabolic syndrome (MetS), which is characterized by insulin resistance, high blood glucose, obesity, and dyslipidemia, is known to increase the risk of dementia accompanied by memory loss and depression. The direct pathways and specific mechanisms in the central nervous system (CNS) for addressing fatty acid imbalances in MetS have not yet been fully elucidated. Among polyunsaturated acids, linoleic acid (LA, n6-PUFA) and α-linolenic acid (ALA, n3-PUFA), which are two essential fatty acids that should be provided by food sources (e.g., vegetable oils and seeds), have been reported to regulate various cellular mechanisms including apoptosis, inflammatory responses, mitochondrial biogenesis, and insulin signaling. Furthermore, inadequate intake of LA and ALA is reported to be involved in neuropathology and neuropsychiatric diseases as well as imbalanced metabolic conditions. Herein, we review the roles of LA and ALA on metabolic-related dementia focusing on insulin resistance, dyslipidemia, synaptic plasticity, cognitive function, and neuropsychiatric issues. This review suggests that LA and ALA are important fatty acids for concurrent treatment of both MetS and neurological problems.
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Affiliation(s)
- Oh Yoen Kim
- Department of Food Science and Nutrition, Dong A University, Busan, Republic of Korea; Department of Health Sciences, Graduate School of Dong-A University, Busan, Republic of Korea.
| | - Juhyun Song
- Department of Anatomy, Chonnam National University Medical School, Seoul, Republic of Korea.
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17
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Olas B. The Cardioprotective Properties of Selected Nuts: Their Functional Ingredients and Molecular Mechanisms. Foods 2024; 13:242. [PMID: 38254543 PMCID: PMC10814286 DOI: 10.3390/foods13020242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/03/2024] [Accepted: 01/11/2024] [Indexed: 01/24/2024] Open
Abstract
Nuts have been known as a nutritious food since ancient times and can be considered part of our original diet: they are one of the few foods that have been eaten in the same form for thousands of years. They consist of various dry fruits and seeds, with the most common species being almonds (Prunus dulcis), hazelnuts (Corylus avellana), cashews (cashew nuts, Anacardium occidentale), pistachios (Pistacia vera), walnuts (Italian nuts, Juglans regia), peanuts (Arachia hypogaca), Brazil nuts (Bartholletia excels), pecans (Corya illinoinensis), macadamia nuts (Macademia ternifolia) and pine nuts. Both in vitro and in vivo studies have found nuts to possess a range of bioactive compounds with cardioprotective properties, and hence, their consumption may play a role in preventing and treating cardiovascular diseases (CVDs). The present work reviews the current state of knowledge regarding the functional ingredients of various nuts (almonds, Brazil nuts, cashew nuts, hazelnuts, macadamia nuts, peanuts, pecan nuts, pine nuts, pistachios, and walnuts) and the molecular mechanisms of their cardioprotective action. The data indicate that almonds, walnuts and pistachios are the best nut sources of bioactive ingredients with cardioprotective properties.
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Affiliation(s)
- Beata Olas
- Department of General Biochemistry, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/3, 90-236 Lodz, Poland
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18
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Martínez-Ortega IA, Mesas AE, Bizzozero-Peroni B, Garrido-Miguel M, Jiménez-López E, Martínez-Vizcaíno V, Fernández-Rodríguez R. Can different types of tree nuts and peanuts induce varied effects on specific blood lipid parameters? A systematic review and network meta-analysis. Crit Rev Food Sci Nutr 2023; 65:1538-1552. [PMID: 38153311 DOI: 10.1080/10408398.2023.2296559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
Tree nuts and peanuts have shown cardioprotective effects through the modulation of blood lipid levels. Despite the abundance of scientific evidence available, it remains uncertain whether the type of nut consumed influences these changes. The objective of this study was to evaluate and rank the effects of six types of nuts on total cholesterol (total-c), low-density lipoprotein (LDL-c), triglyceride (TG) and high-density lipoprotein (HDL-c) levels through a systematic search of randomized controlled trials (RCTs), a frequentist network meta-analysis (NMA), and the estimation of SUCRA values. A total of 76 RCTs were ultimately analyzed. The total c for pistachios, almond, and walnuts; LDL-c for cashews, walnuts, and almond; and TG for hazelnuts and walnuts significantly decreased, while only peanuts exhibited a significant increase in HDL-c levels. According to the rankings, the most effective type of nut for reducing total cholesterol was pistachio, cashew for LDL-c, hazelnut for TG, and peanut for increasing HDL-c levels. It should be noted that every type of nut analyzed exhibited a significant positive impact on some parameters, and specific types demonstrated enhanced advantages for particular blood lipids. These results endorse the use of personalized nutritional strategies to address and prevent dyslipidemia.Registration: PROSPERO database CRD42021270779.
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Affiliation(s)
| | - Arthur Eumann Mesas
- Health and Social Research Center, Universidad de Castilla La-Mancha, Cuenca, Spain
- Postgraduate Program in Public Health, Universidade Estadual de Londrina, Londrina, Brazil
| | - Bruno Bizzozero-Peroni
- Health and Social Research Center, Universidad de Castilla La-Mancha, Cuenca, Spain
- Instituto Superior de Educación Física, Universidad de la República, Rivera, Uruguay
| | - Miriam Garrido-Miguel
- Health and Social Research Center, Universidad de Castilla La-Mancha, Cuenca, Spain
- Facultad de Enfermería, Universidad de Castilla-La Mancha, Albacete, Spain
| | - Estela Jiménez-López
- Health and Social Research Center, Universidad de Castilla La-Mancha, Cuenca, Spain
- Department of Psychiatry, Hospital Virgen de La Luz, Cuenca, Spain
- CIBERSAM, ISCIII, Madrid, Spain
| | - Vicente Martínez-Vizcaíno
- Health and Social Research Center, Universidad de Castilla La-Mancha, Cuenca, Spain
- Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Talca, Chile
| | - Rubén Fernández-Rodríguez
- Health and Social Research Center, Universidad de Castilla La-Mancha, Cuenca, Spain
- Adelaide Medical School, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, South Australia, Australia
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19
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Tepavcevic S, Romic S, Zec M, Culafic T, Stojiljkovic M, Ivkovic T, Pantelic M, Kostic M, Stanisic J, Koricanac G. Effects of Walnut-Rich Diet on Cation-Handling Proteins in the Heart of Healthy and Metabolically Compromised Male Rats. J Med Food 2023; 26:849-857. [PMID: 37889606 DOI: 10.1089/jmf.2022.0157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/29/2023] Open
Abstract
The transport of cations in the cardiomyocytes, crucial for the functioning of the heart, can be affected by walnut diet due to the high content of polyunsaturated fatty acids. Healthy and metabolically compromised rats (drinking 10% fructose solution) were subjected to a diet supplemented with 2.4 g of walnuts for 6 weeks to investigate the effect on proteins involved in cation transport in the heart cells. Fructose increased the level of the α1 subunit of Na+/K+-ATPase and the phosphorylation of extracellular signal-regulated kinase 1/2 in the heart of control and walnut-eating rats, while elevated L-type calcium channel α (LTCCα), sodium-calcium exchanger 1 (NCX1), and Maxi Kα level were observed only in rats that did not consume walnuts. However, walnuts significantly increased the cardiac content of LTCC, NCX1, and Maxi Kα, as well as Kir6.1 and SUR2B subunits of KATP channel, but only in fructose-naive rats. In animals that drank fructose, a significant increasing effect of walnuts was observed only in Akt kinase phosphorylation, which may be a part of the antiarrhythmic mechanism of decreasing cation currents in cardiomyocytes. The walnut diet-induced increase in LTCC and NCX1 expression in healthy rats may indicate intense cardiac calcium turnover, whereas the effect on Kir6.1 and SUR2B subunits suggests stimulation of KATP channel transport in the cardiac vasculature. The effects of walnuts on the cation-handling proteins in the heart, mostly limited to healthy animals, suggest the possible use of a walnut-supplemented diet in the prevention rather than the treatment of cardiological channelopathies.
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Affiliation(s)
- Snezana Tepavcevic
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Snjezana Romic
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Manja Zec
- Colorado Program for Musculoskeletal Research, Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Tijana Culafic
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Mojca Stojiljkovic
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Tamara Ivkovic
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Marija Pantelic
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Milan Kostic
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Jelena Stanisic
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Goran Koricanac
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
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20
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Petersen KS, Chandra M, Chen See JR, Leister J, Jafari F, Tindall A, Kris-Etherton PM, Lamendella R. Walnut consumption and gut microbial metabolism: Results of an exploratory analysis from a randomized, crossover, controlled-feeding study. Clin Nutr 2023; 42:2258-2269. [PMID: 37826992 DOI: 10.1016/j.clnu.2023.09.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 09/22/2023] [Accepted: 09/25/2023] [Indexed: 10/14/2023]
Abstract
BACKGROUND & AIMS The effect of walnut-related modulation of gut microbiota composition on microbiota functionality is unknown. The aim was to characterize the effect of a walnut-enriched diet (WD), compared to a fatty acid-matched diet devoid of walnuts (WFMD) and a diet where oleic acid replaces alpha-linolenic acid (ORAD), on bacterial gene expression. METHODS A 3-period, randomized, crossover, controlled-feeding study was conducted. Participants were provided a 2-week run-in standard western diet (SWD; 50% kcal carbohydrate, 16% protein, 34% fat, 12% SFA). Following the SWD in random sequence order, participants were provided the WD, WFMD, and ORAD (48% carbohydrate; 17% protein; fat 35%; 7% SFA). The WD contained 18% of energy from walnuts (57 g/d/2100 kcal). The WFMD and ORAD were devoid of walnuts; liquid non-tropical plant oils were included in these diets. Metatranscriptomic analyses were performed as an exploratory outcome. RESULTS The analytical sample included 35 participants (40% female) with a mean ± SD age of 43 ± 10 y and BMI of 30.3 ± 4.9 kg/m2. The ⍺-diversity of taxa actively expressing genes, assessed by observed species (p = 0.27) and Pielou's Evenness (p = 0.09), did not differ among the diets. The ⍺-diversity of actively expressed genes was greater following the WD compared to the WFMD and ORAD as assessed by the observed genes and Pielou's Evenness metrics (p < 0.05). β-Diversity of the actively expressed genes differed following the WD compared to the WFMD (p = 0.001) and ORAD (p = 0.001); β-diversity did not differ between the WFMD and ORAD. Active composition analyses showed increased Gordonibacter (p < 0.001) activity following the WD vs. the ORAD. Greater expression of many genes was observed following the WD compared to the WFMD and ORAD. Following the WD, greater expression of metabolism-related genes encoding glycine amidinotransferase (GATM; K00613) and arginine deiminase (K01478) was observed compared to the WFMD. Greater expression of glycine amidinotransferase (GATM; K00613) by Gordonibacter was also observed following the WD vs. the WFMD and ORAD. CONCLUSION Our results suggest walnut intake may increase endogenous production of homoarginine through gut microbiota-mediated upregulation of GATM, which is a novel mechanism by which walnuts may lower cardiovascular disease risk. However, given the exploratory nature replication is needed. CLINICAL TRIAL REGISTRATION Clinicaltrials.gov (NCT02210767).
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Affiliation(s)
- Kristina S Petersen
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA; Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA.
| | - Mansi Chandra
- Department of Biology, Juniata College, Huntingdon, PA, USA; Wright Labs, LLC, Huntingdon, PA, USA
| | - Jeremy R Chen See
- Department of Biology, Juniata College, Huntingdon, PA, USA; Wright Labs, LLC, Huntingdon, PA, USA
| | - Jillian Leister
- Department of Biology, Juniata College, Huntingdon, PA, USA; Wright Labs, LLC, Huntingdon, PA, USA
| | - Fatemeh Jafari
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA
| | - Alyssa Tindall
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA; Division of Gastroenterology, Hepatology, and Nutrition, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Penny M Kris-Etherton
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Regina Lamendella
- Department of Biology, Juniata College, Huntingdon, PA, USA; Wright Labs, LLC, Huntingdon, PA, USA
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21
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Beaver LM, Prati M, Gilman KE, Luo T, Shay NF, Branscum AJ, Turner RT, Iwaniec UT. Diet composition influences the effect of high fat diets on bone in growing male mice. Bone 2023; 176:116888. [PMID: 37652285 DOI: 10.1016/j.bone.2023.116888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 08/26/2023] [Accepted: 08/28/2023] [Indexed: 09/02/2023]
Abstract
The effect of diet-induced obesity on bone in rodents is variable, with bone mass increases, decreases, and no impact reported. The goal of this study was to evaluate whether the composition of obesogenic diet may influence bone independent of its effect on body weight. As proof-of-principle, we used a mouse model to compare the skeletal effects of a commonly used high fat 'Western' diet and a modified high fat diet. The modified high fat diet included ground English walnut and was isocaloric for macronutrients, but differed in fatty acid composition and contained nutrients (e.g. polyphenols) not present in the standard 'Western' diet. Eight-week-old mice were randomized into 1 of 3 dietary treatments (n = 8/group): (1) low fat control diet (LF; 10 % kcal fat); (2) high fat 'Western' diet (HF; 46 % kcal fat as soybean oil and lard); or (3) modified high fat diet supplemented with ground walnuts (HF + walnut; 46 % kcal fat as soybean oil, lard, and walnut) and maintained on their respective diets for 9 weeks. Bone response in femur was then evaluated using dual energy x-ray absorptiometry, microcomputed tomography, and histomorphometry. Consumption of both obesogenic diets resulted in increased weight gain but differed in impact on bone and bone marrow adiposity in distal femur metaphysis. Mice consuming the high fat 'Western' diet exhibited a tendency for lower cancellous bone volume fraction and connectivity density, and had lower osteoblast-lined bone perimeter (an index of bone formation) and higher bone marrow adiposity than low fat controls. Mice fed the modified high fat diet did not differ from mice fed control (low fat) diet in cancellous bone microarchitecture, or osteoblast-lined bone perimeter, and exhibited lower bone marrow adiposity compared to mice fed the 'Western' diet. This proof-of-principal study demonstrates that two obesogenic diets, similar in macronutrient distribution and induction of weight gain, can have different effects on cancellous bone in distal femur metaphysis. Because the composition of the diets used to induce obesity in rodents does not recapitulate a common human diet, our finding challenges the translatability of rodent studies evaluating the impact of diet-induced obesity on bone.
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Affiliation(s)
- Laura M Beaver
- Skeletal Biology Laboratory, School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR, USA; Linus Pauling Institute, Oregon State University, Corvallis, OR, USA
| | - Maud Prati
- Food Science and Technology, Oregon State University, Corvallis, OR, USA
| | - Kristy E Gilman
- Skeletal Biology Laboratory, School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR, USA
| | - Ting Luo
- Food Science and Technology, Oregon State University, Corvallis, OR, USA
| | - Neil F Shay
- Food Science and Technology, Oregon State University, Corvallis, OR, USA
| | - Adam J Branscum
- Biostatistics Program, School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR, USA
| | - Russell T Turner
- Skeletal Biology Laboratory, School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR, USA; Center for Healthy Aging Research, Oregon State University, Corvallis, OR, USA
| | - Urszula T Iwaniec
- Skeletal Biology Laboratory, School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR, USA; Center for Healthy Aging Research, Oregon State University, Corvallis, OR, USA.
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22
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Spence LA, Henschel B, Li R, Tekwe CD, Thiagarajah K. A Dietary Model of Partial Meat Replacement with Walnuts Demonstrates Changes in the Nutrient Profile and Quality of the United States Population's Diet. Nutrients 2023; 15:4518. [PMID: 37960171 PMCID: PMC10648433 DOI: 10.3390/nu15214518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 10/05/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023] Open
Abstract
The purpose of the study is to assess the impact of partial meat replacement with walnuts using a dose-escalation approach on nutrient intake and diet quality in the usual US diet. Food modeling was implemented using the nationally representative 2015-2018 National Health and Examination Survey (NHANES), with a focus on non-nut consumers, which included 2707 children and adolescents and 5190 adults. Walnuts replaced meat in a dose-escalating manner (0.5, 1, 1.5, and 2 oz walnuts per day replaced 1, 2, 3, and 4 oz meat, respectively). Diet quality was estimated using the population ratio method of the 2015 Healthy Eating Index. The usual intake of nutrients was estimated using the National Cancer Institute method. Significant differences were determined using non-overlapping 95% confidence intervals. The partial replacement of meat with walnuts demonstrated significant increases in the mean intake of fiber, magnesium, and omega-3 fatty acids and significant decreases in cholesterol and vitamin B12 in the modeled diets for children, adolescents, and adults. Additionally, the partial replacement of meat with walnuts improved overall diet quality. Walnut consumption at 1-2 oz as a replacement for some meat may improve nutrient intake and diet quality across age groups.
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Affiliation(s)
- Lisa A. Spence
- Department of Applied Health Science, School of Public Health-Bloomington, Indiana University, Bloomington, IN 47405, USA;
| | - Beate Henschel
- Department of Epidemiology and Biostatistics, School of Public Health-Bloomington, Indiana University, Bloomington, IN 47405, USA; (B.H.); (C.D.T.)
| | - Rui Li
- Department of Cardiology, Peking University Third Hospital, Beijing 100191, China;
| | - Carmen D. Tekwe
- Department of Epidemiology and Biostatistics, School of Public Health-Bloomington, Indiana University, Bloomington, IN 47405, USA; (B.H.); (C.D.T.)
| | - Krisha Thiagarajah
- Department of Applied Health Science, School of Public Health-Bloomington, Indiana University, Bloomington, IN 47405, USA;
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23
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Haș IM, Vodnar DC, Bungau AF, Tarce AG, Tit DM, Teleky BE. Enhanced Elderberry Snack Bars: A Sensory, Nutritional, and Rheological Evaluation. Foods 2023; 12:3544. [PMID: 37835197 PMCID: PMC10572914 DOI: 10.3390/foods12193544] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 09/19/2023] [Accepted: 09/22/2023] [Indexed: 10/15/2023] Open
Abstract
Interest in functional foods is continuously increasing, having the potential to be an ally in reducing cardiometabolic risk factors. This study focuses on developing and evaluating oat- and millet-based snack bars enriched with freeze-dried elderberry powder (FDEBP), aiming to combine great taste with enhanced nutritional value, antioxidant properties, and prebiotic potential. The research encompassed a sensory evaluation, nutritional assessment, and rheological analysis of the snack bars. A hedonic test was conducted to gauge consumer preferences and overall liking, providing insights into taste, texture, and acceptance. Sensory evaluation revealed positive feedback from participants, and acceptance rating scores ranged from 7 to 8.04, the best score recorded by one of the enhanced bars with 1% FDEBP. The rheological analysis determined the bars' dynamic storage modulus (G') and loss modulus (G″), assessing the material's elasticity and mechanical properties. Results showed that the incorporation of 0.5% and 1% FDEBP in the oat and millet snack bars significantly impacted their rheological properties, enhancing structural strength. Nutritional analysis demonstrated that the snack bars provided a complete mix of macronutrients required in a daily diet. The study sheds light on the potential of functional snack bars enriched with FDEBP, offering a delectable way to access essential nutrients and bioactive compounds in a minimally processed form, without the addition of sweeteners or additives, friendly to the gut microbiota.
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Affiliation(s)
- Ioana Mariana Haș
- Doctoral School of Biomedical Sciences, University of Oradea, 410087 Oradea, Romania; (I.M.H.); (A.F.B.)
| | - Dan-Cristian Vodnar
- Institute of Life Sciences, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania;
- Department of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
| | - Alexa Florina Bungau
- Doctoral School of Biomedical Sciences, University of Oradea, 410087 Oradea, Romania; (I.M.H.); (A.F.B.)
| | - Alexandra Georgiana Tarce
- Medicine Program of Study, Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania;
| | - Delia Mirela Tit
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, 410028 Oradea, Romania
| | - Bernadette-Emőke Teleky
- Institute of Life Sciences, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania;
- Department of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
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24
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Zuelch ML, Radtke MD, Holt RR, Basu A, Burton-Freeman B, Ferruzzi MG, Li Z, Shay NF, Shukitt-Hale B, Keen CL, Steinberg FM, Hackman RM. Perspective: Challenges and Future Directions in Clinical Research with Nuts and Berries. Adv Nutr 2023; 14:1005-1028. [PMID: 37536565 PMCID: PMC10509432 DOI: 10.1016/j.advnut.2023.07.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 07/11/2023] [Accepted: 07/31/2023] [Indexed: 08/05/2023] Open
Abstract
Consumption of nuts and berries are considered part of a healthy eating pattern. Nuts and berries contain a complex nutrient profile consisting of essential vitamins and minerals, fiber, polyunsaturated fatty acids, and phenolics in quantities that improve physiological outcomes. The spectrum of health outcomes that may be impacted by the consumptions of nuts and berries includes cardiovascular, gut microbiome, and cognitive, among others. Recently, new insights regarding the bioactive compounds found in both nuts and berries have reinforced their role for use in precision nutrition efforts. However, challenges exist that can affect the generalizability of outcomes from clinical studies, including inconsistency in study designs, homogeneity of test populations, variability in test products and control foods, and assessing realistic portion sizes. Future research centered on precision nutrition and multi-omics technologies will yield new insights. These and other topics such as funding streams and perceived risk-of-bias were explored at an international nutrition conference focused on the role of nuts and berries in clinical nutrition. Successes, challenges, and future directions with these foods are presented here.
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Affiliation(s)
- Michelle L Zuelch
- Department of Nutrition, University of California, Davis, CA, United States
| | - Marcela D Radtke
- Department of Nutrition, University of California, Davis, CA, United States
| | - Roberta R Holt
- Department of Nutrition, University of California, Davis, CA, United States
| | - Arpita Basu
- Department of Kinesiology and Nutrition Sciences, School of Integrated Health Sciences, University of Nevada, Las Vegas, NV, United States
| | - Britt Burton-Freeman
- Department of Food Science and Nutrition, Illinois Institute of Technology, Chicago, IL, United States
| | - Mario G Ferruzzi
- Department of Pediatrics, Arkansas Children's Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Zhaoping Li
- UCLA Center for Human Nutrition, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
| | - Neil F Shay
- Department of Food Science and Technology, Oregon State University, Corvallis, OR, United States
| | - Barbara Shukitt-Hale
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Carl L Keen
- Department of Nutrition, University of California, Davis, CA, United States; Department of Internal Medicine, University of California, Davis, CA, United States
| | | | - Robert M Hackman
- Department of Nutrition, University of California, Davis, CA, United States.
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25
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Bekele TH, Trijsburg L, Brouwer ID, de Vries JH, Covic N, Kennedy G, Alemayehu D, Feskens EJ. Dietary Recommendations for Ethiopians on the Basis of Priority Diet-Related Diseases and Causes of Death in Ethiopia: An Umbrella Review. Adv Nutr 2023; 14:895-913. [PMID: 37182739 PMCID: PMC10334157 DOI: 10.1016/j.advnut.2023.05.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 05/02/2023] [Accepted: 05/04/2023] [Indexed: 05/16/2023] Open
Abstract
Food-based dietary guidelines (FBDG) need to be evidence-based. As part of the development of Ethiopian FBDG, we conducted an umbrella review to develop dietary recommendations. Protein-energy malnutrition (PEM), deficiencies of vitamin A, zinc, calcium, or folate, cardiovascular diseases (CVD), and type 2 diabetes mellitus (T2DM) were selected as a priority. Systematic reviews were eligible if they investigated the impact of foods, food groups, diet, or dietary patterns on priority diseases. After a search, 1513 articles were identified in PubMed, Scopus, and Google Scholar published from January 2014 to December 2021. The results showed that 19 out of 164 systematic reviews reported the impact of diet on PEM or micronutrient deficiencies. Daily 30-90 g whole-grain consumption reduces risk of CVD and T2DM. Pulses improve protein status, and consuming 50-150 g/d is associated with a reduced incidence of CVD and T2DM. Nuts are a good source of minerals, and consuming 15-35 g/d improves antioxidant status and is inversely associated with CVD risk. A daily intake of 200-300 mL of milk and dairy foods is a good source of calcium and contributes to bone mineral density. Limiting processed meat intake to <50 g/d reduces CVD risk. Fruits and vegetables are good sources of vitamins A and C. CVD and T2DM risks are reduced by consuming 200-300 g of vegetables plus fruits daily. Daily sugar consumption should be below 10% of total energy to lower risk of obesity, CVD, and T2DM. Plant-based fat has favorable nutrient profiles and modest saturated fat content. The association of saturated fatty acids with CVD and T2DM is inconclusive, but intake should be limited because of the low-density lipoprotein cholesterol-raising effect. Plant-based diets lower risk of CVD and T2DM but reduce micronutrient bioavailability. The review concludes with 9 key dietary recommendations proposed to be implemented in the Ethiopian FBDG. This review was registered at PROSPERO (CRD42019125490).
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Affiliation(s)
- Tesfaye Hailu Bekele
- Food Science and Nutrition Research Directorate, Ethiopian Public Health Institute, Addis Ababa, Ethiopia; Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands.
| | - Laura Trijsburg
- Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
| | - Inge D Brouwer
- Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
| | - Jeanne Hm de Vries
- Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
| | - Namukolo Covic
- Poverty, Health and Nutrition Division, International Food Policy Research Institute, Addis Ababa, Ethiopia
| | - Gina Kennedy
- Knowledge Leadership, Global Alliance for Improved Nutrition, Washington, DC, United States
| | - Dawit Alemayehu
- Food Science and Nutrition Research Directorate, Ethiopian Public Health Institute, Addis Ababa, Ethiopia
| | - Edith Jm Feskens
- Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
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26
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Fiorino GM, Tlais AZA, Losito I, Filannino P, Gobbetti M, Di Cagno R. Triacylglycerols hydrolysis and hydroxy- and epoxy-fatty acids release during lactic fermentation of plant matrices: An extensive study showing inter- and intra-species capabilities of lactic acid bacteria. Food Chem 2023; 412:135552. [PMID: 36716627 DOI: 10.1016/j.foodchem.2023.135552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 01/16/2023] [Accepted: 01/21/2023] [Indexed: 01/24/2023]
Abstract
This study aims to show that lactic fermentation by selected starters can enrich plant matrices with hydroxy- and oxo-fatty acids. The behavior of 31 lactic acid bacteria strains was investigated during the fermentation of Persian walnut, which was selected as a model growth substrate due to its inherent lipids content. The content of the following free fatty acids increased in the majority of the fermented walnut samples: linoleic, α-linolenic, palmitic, and oleic acids. The increase of diacylglycerols and, especially, monoacylglycerols levels in fermented walnuts confirmed that strain-specific bacterial lipolytic activities hydrolyzed triacylglycerols during walnut fermentation. Twelve hydroxylated or epoxidized derivatives arising from oleic, linoleic, and linolenic fatty acids, in five groups of isomeric compounds, were also identified. In addition to the better-known lactobacilli, certain strains of Weissella cibaria, Leuconostoc mesenteroides, and Enterococcus faecalis emerged for their lipolytic activities and ability to release hydroxy- and epoxy-fatty acids during walnut fermentation.
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Affiliation(s)
| | | | - Ilario Losito
- Department of Chemistry and SMART Inter-department Research Center, University of Bari Aldo Moro, 70126 Bari, Italy
| | - Pasquale Filannino
- Department of Soil, Plant and Food Science, University of Bari Aldo Moro, 70126 Bari, Italy.
| | - Marco Gobbetti
- Faculty of Sciences and Technology, Libera Università di Bolzano, 39100 Bolzano, Italy
| | - Raffaella Di Cagno
- Faculty of Sciences and Technology, Libera Università di Bolzano, 39100 Bolzano, Italy
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27
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Liang M, Dong Q, Zhang X, Liu Y, Li H, Guo S, Luan H, Jia P, Yang M, Qi G. Metabolomics and Transcriptomics Analyses Reveals the Molecular Regulatory Mechanisms of Walnut ( Juglans regia L.) Embryos in Response to Shade Treatment. Int J Mol Sci 2023; 24:10871. [PMID: 37446044 DOI: 10.3390/ijms241310871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 06/16/2023] [Accepted: 06/23/2023] [Indexed: 07/15/2023] Open
Abstract
The walnut is an important nut that has numerous uses worldwide. However, due to dwarf and close plantation methods as well as continuous cloudy or rainy days that occur during periods of walnut oil accumulation, the walnut fruit exhibits varying degrees of stress under low-light conditions. However, the effects of shade on metabolites and genes in walnut embryos remain unclear in the literature. The purpose of this study is to investigate the lipid biosynthesis process that occurs in walnut embryos under shade treatment via the use of metabolomics and transcriptomics analyses. The results indicate that the oil content decreases significantly under shaded conditions, while the protein content increases significantly. The expression levels of fatty acid desaturase 2 (FAD2) and stearoyl-ACP-desaturase (SAD) involved in the lipid biosynthesis mechanism were significantly reduced in the shaded group, which resulted in reductions in oleic (C18:1), linoleic (C18:2), and α-linolenic (C18:3) acids. The reduced oil content was consistent with the downregulation of genes associated with the lipid biosynthesis mechanism. In the amino acid biosynthesis process, the upregulated cysteine synthase (cscK) and anthranilate synthase beta subunit 2 (trpG) genes promoted the accumulation of L-aspartic acid and L-citrulline. The increase in protein content was consistent with the upregulation of genes related to amino acid biosynthesis. Thus, our study provides new insights into the regulatory mechanisms of shade underlying overall walnut fruit quality.
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Affiliation(s)
- Manman Liang
- College of Forestry, Hebei Agricultural University, Baoding 071001, China
| | - Qinglong Dong
- College of Forestry, Hebei Agricultural University, Baoding 071001, China
| | - Xuemei Zhang
- College of Forestry, Hebei Agricultural University, Baoding 071001, China
| | - Yang Liu
- College of Forestry, Hebei Agricultural University, Baoding 071001, China
| | - Han Li
- College of Forestry, Hebei Agricultural University, Baoding 071001, China
| | - Suping Guo
- College of Forestry, Hebei Agricultural University, Baoding 071001, China
| | - Haoan Luan
- College of Forestry, Hebei Agricultural University, Baoding 071001, China
| | - Peng Jia
- College of Forestry, Hebei Agricultural University, Baoding 071001, China
| | - Minsheng Yang
- College of Forestry, Hebei Agricultural University, Baoding 071001, China
| | - Guohui Qi
- College of Forestry, Hebei Agricultural University, Baoding 071001, China
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Ahmed SI, Carbone S. Energy restriction or improvements in diet quality: identifying the best pathway for a longer and healthier life. Minerva Cardiol Angiol 2023:S2724-5683.23.06298-1. [PMID: 37310156 PMCID: PMC10716369 DOI: 10.23736/s2724-5683.23.06298-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Obesity is a major risk factor for chronic non-communicable diseases (NCDs) and it has increased to epidemic proportions. Unhealthy diet represents a modifiable risk factor for both obesity and NCDs, however, there is no universal dietary intervention to improve obesity-related NCDs and particularly to reduce the risk for major adverse cardiovascular events. Energy restriction (ER) and diet quality changes, with and without ER, have been widely investigated in preclinical and clinical studies, however, the potential underlying mechanisms driving the benefits of those dietary interventions remain largely unclear. ER affects multiple metabolic, physiological, genetic, and cellular adaptation pathways associated with prolonged lifespan, particularly in preclinical models, while these benefits remain to be established in humans. Moreover, the sustainability of ER and its implementation across the different diseases remains challenging. On the other hand, diet quality with improvements, with or without ER, has been associated with more favorable long-term metabolic and cardiovascular outcomes. This narrative review will describe the role of ER and/or diet quality improvements on the risk for NCDs. It will also discuss the potential mechanisms of action underlying the potential beneficial effects of those dietary approaches.
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Affiliation(s)
- Syed I Ahmed
- Department of Kinesiology and Health Sciences, College of Humanities and Sciences, Virginia Commonwealth University, Richmond, VA, USA
| | - Salvatore Carbone
- Department of Kinesiology and Health Sciences, College of Humanities and Sciences, Virginia Commonwealth University, Richmond, VA, USA -
- VCU Pauley Heart Center, Division of Cardiology, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, USA
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Zhang J, Cai Q, Ji W. Nutritional Composition of Plant Protein Beverages on China's Online Market: A Cross-Sectional Analysis. Nutrients 2023; 15:2701. [PMID: 37375604 DOI: 10.3390/nu15122701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 05/28/2023] [Accepted: 06/05/2023] [Indexed: 06/29/2023] Open
Abstract
Plant protein beverages are gaining popularity due to various reasons such as lactose intolerance, veganism and health claims. This study aimed to conduct a cross-sectional analysis of plant protein beverages sold online in China, with a focus on assessing their nutritional composition. A total of 251 kinds of plant protein beverages were analyzed, including coconut (n = 58), soy (n = 52), oats (n = 49), walnut (n = 14), almond (n = 11), peanut (n = 5), rice (n = 4), other beans (n = 5), mixed nuts (n = 5) and mixed beverages (n = 48), according to the nutrition label on the commercial package and retailer websites. The results showed that, except for soy beverages, plant protein beverages generally had low protein content, cereal beverages showed relatively high energy and carbohydrate levels, and all plant protein beverages had low sodium content. Additionally, the fortification rate of vitamins and minerals in the analyzed plant protein beverages was found to be extremely low, at only 13.1%. Given the substantial variation in the nutritional composition of plant protein beverages, consumers should pay more attention to the nutrition facts and ingredient information when choosing these beverages.
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Affiliation(s)
- Jialin Zhang
- Yangtze Delta Region Institute of Tsinghua University, Jiaxing 314000, China
| | - Qiang Cai
- Yangtze Delta Region Institute of Tsinghua University, Jiaxing 314000, China
| | - Wei Ji
- Yangtze Delta Region Institute of Tsinghua University, Jiaxing 314000, China
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Lovell ST, Krishnaswamy K, Lin CH, Meier N, Revord RS, Thomas AL. Nuts and berries from agroforestry systems in temperate regions can form the foundation for a healthier human diet and improved outcomes from diet-related diseases. AGROFORESTRY SYSTEMS 2023:1-14. [PMID: 37363637 PMCID: PMC10249563 DOI: 10.1007/s10457-023-00858-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 05/15/2023] [Indexed: 06/28/2023]
Abstract
Agroforestry is a specific type of agroecosystem that includes trees and shrubs with the potential to yield nutrient-rich products that contribute to human health. This paper reviews the literature on the human health benefits of tree nut and berry species commonly associated with agroforestry systems of the United States, considering their potential for preventing certain diet-related diseases. Emphasis is placed on those diseases that are most closely associated with poor outcomes from COVID-19, as they are indicators of confounding health prognoses. Results indicate that tree nuts reduce the risk of coronary heart disease, and walnuts (Juglans species) are particularly effective because of their unique fatty acid profile. Berries that are grown on shrubs have the potential to contribute to mitigation of hypertension, prevention of Type II diabetes, and reduced risk of cardiovascular disease. To optimize human health benefits, plant breeding programs can focus on the traits that enhance the naturally-occurring phytochemicals, through biofortification. Value-added processing techniques should be selected and employed to preserve the phytonutrients, so they are maintained through the point of consumption. Agroforestry systems can offer valuable human health outcomes for common diet-related diseases, in addition to providing many environmental benefits, particularly if they are purposefully designed with that goal in mind. The food system policies in the U.S. might be reoriented to prioritize these food production systems based on the health benefits.
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Affiliation(s)
- Sarah Taylor Lovell
- Center for Agroforestry, University of Missouri, Columbia, MO USA
- School of Natural Resources, University of Missouri, Columbia, MO USA
| | - Kiruba Krishnaswamy
- Biomedical, Biological and Chemical Engineering, University of Missouri, Columbia, MO USA
| | - Chung-Ho Lin
- Center for Agroforestry, University of Missouri, Columbia, MO USA
- School of Natural Resources, University of Missouri, Columbia, MO USA
| | - Nicholas Meier
- Center for Agroforestry, University of Missouri, Columbia, MO USA
- School of Natural Resources, University of Missouri, Columbia, MO USA
| | - Ronald S. Revord
- Center for Agroforestry, University of Missouri, Columbia, MO USA
- School of Natural Resources, University of Missouri, Columbia, MO USA
| | - Andrew L. Thomas
- Division of Plant Sciences and Technology, Southwest Research, Extension, and Education Center, University of Missouri, Mt. Vernon, MO USA
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Effect of Walnut Supplementation on Dietary Polyphenol Intake and Urinary Polyphenol Excretion in the Walnuts and Healthy Aging Study. Nutrients 2023; 15:nu15051253. [PMID: 36904251 PMCID: PMC10005107 DOI: 10.3390/nu15051253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 02/24/2023] [Accepted: 02/24/2023] [Indexed: 03/06/2023] Open
Abstract
Among all tree nuts, walnuts contain the highest total polyphenols by weight. This secondary data analysis examined the effect of daily walnut supplementation on the total dietary polyphenols and subclasses and the urinary excretion of total polyphenols in a free-living elderly population. In this 2-year prospective, randomized intervention trial (ID NCT01634841), the dietary polyphenol intake of participants who added walnuts daily to their diets at 15% of daily energy were compared to those in the control group that consumed a walnut-free diet. Dietary polyphenols and subclasses were estimated from 24 h dietary recalls. Phenolic estimates were derived from Phenol-Explorer database version 3.6. Participants in the walnut group compared to the control group had a higher intake of total polyphenols, flavonoids, flavanols, and phenolic acids in mg/d (IQR): 2480 (1955, 3145) vs. 1897 (1369, 2496); 56 (42,84) vs. 29 (15, 54); 174 (90, 298) vs. 140 (61, 277); and 368 (246, 569) vs. 242 (89, 398), respectively. There was a significant inverse association between dietary flavonoid intake and urine polyphenol excretion; less urinary excretion may imply that some of the polyphenols were eliminated via the gut. Nuts had a significant contribution to the total polyphenols in the diet, suggesting that a single food like walnuts added to habitual diet can increase the polyphenol intake in a Western population.
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Rajaram S, Damasceno NRT, Braga RAM, Martinez R, Kris-Etherton P, Sala-Vila A. Effect of Nuts on Markers of Inflammation and Oxidative Stress: A Narrative Review. Nutrients 2023; 15:1099. [PMID: 36904099 PMCID: PMC10005658 DOI: 10.3390/nu15051099] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 02/18/2023] [Accepted: 02/20/2023] [Indexed: 02/25/2023] Open
Abstract
Oxidative stress and inflammation are mediators in the pathophysiology of several non-communicable diseases (NCDs). Tree nuts and peanuts lower risk factors of cardiometabolic disease, including blood lipids, blood pressure and insulin resistance, among others. Given their strong antioxidant/anti-inflammatory potential, it is plausible that nuts may also exert a favorable effect on inflammation and oxidative stress. Evidence from systematic reviews and meta-analyses of cohort studies and randomized controlled trials (RCTs) suggest a modest protective effect of total nuts; however, the evidence is inconsistent for specific nut types. In this narrative review, the state of evidence to date is summarized for the effect of nut intake on biomarkers of inflammation and oxidative stress, and an attempt is made to define the gaps in research while providing a framework for future research. Overall, it appears that some nuts, such as almonds and walnuts, may favorably modify inflammation, and others, such as Brazil nuts, may favorably influence oxidative stress. There is a pressing need for large RCTs with an adequate sample size that consider different nut types, and the dose and duration of nut intervention, while evaluating a robust set of biomarkers for inflammation and oxidative stress. Building a stronger evidence base is important, especially since oxidative stress and inflammation are mediators of many NCDs and can benefit both personalized and public health nutrition.
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Affiliation(s)
- Sujatha Rajaram
- School of Public Health, Loma Linda University, Loma Linda, CA 92354, USA
| | | | | | - Raquel Martinez
- School of Public Health, Loma Linda University, Loma Linda, CA 92354, USA
| | - Penny Kris-Etherton
- Department of Nutritional Sciences, Pennsylvania State University, State College, PA 16801, USA
| | - Aleix Sala-Vila
- Cardiovascular Epidemiology and Genetics Group, IMIM Hospital del Mar Medical Research Institute, 08003 Barcelona, Spain
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Arnesen EK, Thorisdottir B, Bärebring L, Söderlund F, Nwaru BI, Spielau U, Dierkes J, Ramel A, Lamberg-Allardt C, Åkesson A. Nuts and seeds consumption and risk of cardiovascular disease, type 2 diabetes and their risk factors: a systematic review and meta-analysis. Food Nutr Res 2023; 67:8961. [PMID: 36816545 PMCID: PMC9930735 DOI: 10.29219/fnr.v67.8961] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 01/04/2023] [Accepted: 01/20/2023] [Indexed: 02/16/2023] Open
Abstract
Objectives We aimed to systematically review studies and evaluate the strength of the evidence on nuts/seeds consumption and cardiometabolic diseases and their risk factors among adults. Methods A protocol was pre-registered in PROSPERO (CRD42021270554). We searched MEDLINE, Embase, Cochrane Central Register of Controlled Trials and Scopus up to September 20, 2021 for prospective cohort studies and ≥12-week randomized controlled trials (RCTs). Main outcomes were cardiovascular disease (CVD), coronary heart disease (CHD), stroke and type 2 diabetes (T2D), secondary total-/low density lipoprotein (LDL)-cholesterol, blood pressure and glycaemic markers. Data extraction and risk of bias (RoB) assessments (using RoB 2.0 and RoB-NObS) were performed in duplicate. Effect sizes were pooled using random-effects meta-analyses and expressed as relative risk (RR) or weighted mean differences with 95% confidence intervals (CI); heterogeneity quantified as I 2. One-stage dose-response analyses assessed the linear and non-linear associations with CVD, CHD, stroke and T2D. The strength of evidence was classified per the World Cancer Research Fund criteria. Results After screening 23,244 references, we included 42 papers from cohort studies (28 unique cohorts, 1,890,573 participants) and 18 RCTs (2,266 participants). In the cohorts, mainly populations with low consumption, high versus low total nuts/seeds consumption was inversely associated with total CVD (RR 0.81; 95% CI 0.75, 0.86; I 2 = 67%), CVD mortality (0.77; 0.72, 0.82; I 2 = 59.3%), CHD (0.82; 0.76, 0.89; I 2 = 64%), CHD mortality (0.75; 0.65, 0.87; I 2 = 66.9%) and non-fatal CHD (0.85; 0.75, 0.96; I 2 = 62.2%). According to the non-linear dose-response analyses, consumption of 30 g/day of total nuts/seeds was associated with RRs of similar magnitude. For stroke and T2D the summary RR for high versus low intake was 0.91 (95% CI 0.85, 0.97; I 2 = 24.8%) and 0.95 (0.75, 1.21; I 2 = 82.2%). Intake of nuts (median ~50 g/day) lowered total (-0.15 mmol/L; -0.22, -0.08; I 2 = 31.2%) and LDL-cholesterol (-0.13 mmol/L; -0.21, -0.05; I 2 = 68.6%), but not blood pressure. Findings on fasting glucose, HbA1c and insulin resistance were conflicting. The results were robust to sensitivity and subgroup analyses. We rated the associations between nuts/seeds and both CVD and CHD as probable. There was limited but suggestive evidence for no association with stroke. No conclusion could be made for T2D. Conclusion There is a probable relationship between consumption of nuts/seeds and lower risk of CVD, mostly driven by CHD, possibly in part through effects on blood lipids. More research on stroke and T2D may affect the conclusions. The evidence of specific nuts should be further investigated.
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Affiliation(s)
- Erik Kristoffer Arnesen
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway,Erik Kristoffer Arnesen, Division of Clinical Nutrition, Institute of Basic Medical Science, University of Oslo, Box 1046 Blindern, NO-0317 Oslo, Norway.
| | | | - Linnea Bärebring
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Fredrik Söderlund
- Unit of Cardiovascular and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Bright I. Nwaru
- Krefting Research Centre, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Ulrike Spielau
- Centre for Nutrition, Department of Clinical Medicine, University of Bergen, Bergen, Norway,Mohn Nutrition Research Laboratory, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Jutta Dierkes
- Centre for Nutrition, Department of Clinical Medicine, University of Bergen, Bergen, Norway,Mohn Nutrition Research Laboratory, Department of Clinical Science, University of Bergen, Bergen, Norway,Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway
| | - Alfons Ramel
- Faculty of Food Science and Nutrition, University of Iceland, Reykjavik, Iceland
| | | | - Agneta Åkesson
- Unit of Cardiovascular and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
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Gunathilake M, Kim J. Reply to: Effects of nut consumption on blood lipid profile: A meta-analysis of randomized controlled trials: A letter to the editor. Nutr Metab Cardiovasc Dis 2023; 33:459-460. [PMID: 36641316 DOI: 10.1016/j.numecd.2022.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 11/03/2022] [Accepted: 11/08/2022] [Indexed: 11/17/2022]
Affiliation(s)
- Madhawa Gunathilake
- Department of Cancer Biomedical Science, Graduate School of Cancer Science and Policy, Goyang-si, 10408, Gyeonggi-do, South Korea
| | - Jeongseon Kim
- Department of Cancer Biomedical Science, Graduate School of Cancer Science and Policy, Goyang-si, 10408, Gyeonggi-do, South Korea.
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35
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Nishi SK, Ros E, Sabaté J, Salas-Salvadó J. Expression of concern on Gunathilake et al., "Effects of nut consumption on blood lipid profile: A meta-analysis of randomized controlled trials". Nutr Metab Cardiovasc Dis 2023; 33:457-458. [PMID: 36641318 DOI: 10.1016/j.numecd.2022.11.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 09/30/2022] [Accepted: 11/08/2022] [Indexed: 11/25/2022]
Affiliation(s)
- Stephanie K Nishi
- Universitat Rovira i Virgili, Departament de Bioquímica i Biotecnologia, Unitat de Nutrició, Reus, Spain; Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain; Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain; Toronto 3D (Diet, Digestive Tract and Disease) Knowledge Synthesis and Clinical Trials Unit, Toronto, ON, Canada; Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, Unity Health Toronto, ON, Canada.
| | - Emilio Ros
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain; Lipid Clinic, Department of Endocrinology and Nutrition, Institut d'Investigacions Biomèdiques August Pi Sunyer (IDIBAPS), Hospital Clínic, Barcelona, Spain
| | - Joan Sabaté
- Center for Nutrition, Lifestyle, and Disease Prevention, School of Public Health, Loma Linda University, Loma Linda, CA, United States. Loma Linda University, California, USA
| | - Jordi Salas-Salvadó
- Universitat Rovira i Virgili, Departament de Bioquímica i Biotecnologia, Unitat de Nutrició, Reus, Spain; Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain; Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain; University Hospital of Sant Joan de Reus, Nutrition Unit, Reus, Spain.
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Liang M, Zhang X, Dong Q, Li H, Guo S, Luan H, Jia P, Yang M, Qi G. Metabolomics and Transcriptomics Provide Insights into Lipid Biosynthesis in the Embryos of Walnut ( Juglans regia L.). PLANTS (BASEL, SWITZERLAND) 2023; 12:538. [PMID: 36771622 PMCID: PMC9921657 DOI: 10.3390/plants12030538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/31/2022] [Accepted: 01/05/2023] [Indexed: 06/18/2023]
Abstract
Walnut (Juglans regia L.) is an important woody oilseed tree species due to its commercial value. However, the regulation mechanism of walnut oil accumulation is still poorly understood, which restricted the breeding and genetic improvement of high-quality oil-bearing walnuts. In order to explore the metabolic mechanism that regulates the synthesis of walnut oil, we used transcriptome sequencing technology and metabolome technology to comprehensively analyze the key genes and metabolites involved in oil synthesis of the walnut embryo at 60, 90, and 120 days after pollination (DAP). The results showed that the oil and protein contents increased gradually during fruit development, comprising 69.61% and 18.32% of the fruit, respectively, during ripening. Conversely, the contents of soluble sugar and starch decreased gradually during fruit development, comprising 2.14% and 0.84%, respectively, during ripening. Transcriptome sequencing generated 40,631 unigenes across 9 cDNA libraries. We identified 51 and 25 candidate unigenes related to the biosynthesis of fatty acid and the biosynthesis of triacylglycerol (TAG), respectively. The expression levels of the genes encoding Acetyl-CoA carboxylase (ACCase), long-chain acyl-CoA synthetases (LACS), 3-oxoacyl-ACP synthase II (KASII), and glycerol-3-phosphate acyl transfer (GPAT) were upregulated at 60 DAP relative to the levels at 90 and 120 DAP, while the stearoyl-ACP-desaturase (SAD) and fatty acid desaturase 2 (FAD2) genes were highly abundantly expressed during all walnut developmental periods. We found that ABSCISIC ACID INSENSEITIVE3 (ABI3), WRINKLEDl (WRI1), LEAFY COTYLEDON1 (LEC1), and FUSCA3 (FUS3) may be key transcription factors involved in lipid synthesis. Additionally, the metabolomics analysis detected 706 metabolites derived from 18 samples, among which, 4 are implicated in the TAG synthesis, 2 in the glycolysis pathway, and 5 in the tricarboxylic acid cycle (TCA cycle) pathway. The combined analysis of the related genes and metabolites in TAG synthesis showed that phospholipid:diacylglycerol acyltransferase (PDAT) genes were highly abundantly expressed across walnut fruit developmental periods, and their downstream metabolite TAG gradually accumulated with the progression of fruit development. The FAD2 gene showed consistently higher expression during fruit development, and its downstream metabolites 18:2-PC and 18:3-PC gradually accumulated. The ACCase, LACS, SAD, FAD2, and PDAT genes may be crucial genes required for walnut oil synthesis. Our data will enrich public databases and provide new insights into functional genes related to lipid metabolism in walnut.
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Affiliation(s)
- Manman Liang
- College of Forestry, Hebei Agricultural University, Baoding 071001, China
| | - Xuemei Zhang
- College of Forestry, Hebei Agricultural University, Baoding 071001, China
- Technology Innovation Center of Hebei Province, Xingtai 054000, China
- Institute of Walnut Industry Technology of Hebei Province (Xingtai), Lincheng 054300, China
| | - Qinglong Dong
- College of Forestry, Hebei Agricultural University, Baoding 071001, China
- Technology Innovation Center of Hebei Province, Xingtai 054000, China
- Institute of Walnut Industry Technology of Hebei Province (Xingtai), Lincheng 054300, China
| | - Han Li
- College of Forestry, Hebei Agricultural University, Baoding 071001, China
- Technology Innovation Center of Hebei Province, Xingtai 054000, China
- Institute of Walnut Industry Technology of Hebei Province (Xingtai), Lincheng 054300, China
| | - Suping Guo
- College of Forestry, Hebei Agricultural University, Baoding 071001, China
- Technology Innovation Center of Hebei Province, Xingtai 054000, China
- Institute of Walnut Industry Technology of Hebei Province (Xingtai), Lincheng 054300, China
| | - Haoan Luan
- College of Forestry, Hebei Agricultural University, Baoding 071001, China
- Technology Innovation Center of Hebei Province, Xingtai 054000, China
- Institute of Walnut Industry Technology of Hebei Province (Xingtai), Lincheng 054300, China
| | - Peng Jia
- College of Forestry, Hebei Agricultural University, Baoding 071001, China
- Technology Innovation Center of Hebei Province, Xingtai 054000, China
- Institute of Walnut Industry Technology of Hebei Province (Xingtai), Lincheng 054300, China
| | - Minsheng Yang
- College of Forestry, Hebei Agricultural University, Baoding 071001, China
| | - Guohui Qi
- College of Forestry, Hebei Agricultural University, Baoding 071001, China
- Technology Innovation Center of Hebei Province, Xingtai 054000, China
- Institute of Walnut Industry Technology of Hebei Province (Xingtai), Lincheng 054300, China
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Guasch-Ferré M, Tessier AJ, Petersen KS, Sapp PA, Tapsell LC, Salas-Salvadó J, Ros E, Kris-Etherton PM. Effects of Nut Consumption on Blood Lipids and Lipoproteins: A Comprehensive Literature Update. Nutrients 2023; 15:596. [PMID: 36771303 PMCID: PMC9920334 DOI: 10.3390/nu15030596] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/16/2023] [Accepted: 01/17/2023] [Indexed: 01/25/2023] Open
Abstract
In the present review, we provide a comprehensive narrative overview of the current knowledge on the effects of total and specific types of nut consumption (excluding nut oil) on blood lipids and lipoproteins. We identified a total of 19 systematic reviews and meta-analyses of randomized controlled trials (RCTs) that were available in PubMed from the inception date to November 2022. A consistent beneficial effect of most nuts, namely total nuts and tree nuts, including walnuts, almonds, cashews, peanuts, and pistachios, has been reported across meta-analyses in decreasing total cholesterol (mean difference, MD, -0.09 to -0.28 mmol/L), LDL-cholesterol (MD, -0.09 to -0.26 mmol/L), and triglycerides (MD, -0.05 to -0.17 mmol/L). However, no effects on HDL-cholesterol have been uncovered. Preliminary evidence indicates that adding nuts into the regular diet reduces blood levels of apolipoprotein B and improves HDL function. There is also evidence that nuts dose-dependently improve lipids and lipoproteins. Sex, age, or nut processing are not effect modifiers, while a lower BMI and higher baseline lipid concentrations enhance blood lipid/lipoprotein responses. While research is still emerging, the evidence thus far indicates that nut-enriched diets are associated with a reduced number of total LDL particles and small, dense LDL particles. In conclusion, evidence from clinical trials has shown that the consumption of total and specific nuts improves blood lipid profiles by multiple mechanisms. Future directions in this field should include more lipoprotein particle, apolipoprotein B, and HDL function studies.
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Affiliation(s)
- Marta Guasch-Ferré
- Department of Public Health, Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, 1014 Copenhagen, Denmark
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Anne-Julie Tessier
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Kristina S. Petersen
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX 79409, USA
| | - Philip A. Sapp
- Department of Nutritional Sciences, Penn State University, State College, PA 16802, USA
| | - Linda C. Tapsell
- Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW 2522, Australia
- llawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
| | - Jordi Salas-Salvadó
- Unitat de Nutrició Humana, Departament de Bioquímica i Biotecnologia, Universitat Rovira i Virgili, 43204 Reus, Spain
- Institut d’Investigació Sanitària Pere Virgili (IISPV), 43204 Reus, Spain
- Consorcio Centro de Investigación Biomédica en Red CIBER, Fisiopatología de la Obesidad y Nutrición (CIBERObn), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Emilio Ros
- Consorcio Centro de Investigación Biomédica en Red CIBER, Fisiopatología de la Obesidad y Nutrición (CIBERObn), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
- Lipid Clinic, Endocrinology and Nutrition Service and Institut d’Investigacions Biomèdiques August Pi Sunyer, Hospital Clínic, 08036 Barcelona, Spain
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Spence LA, Henschel B, Li R, Tekwe CD, Thiagarajah K. Adding Walnuts to the Usual Diet Can Improve Diet Quality in the United States: Diet Modeling Study Based on NHANES 2015-2018. Nutrients 2023; 15:258. [PMID: 36678128 PMCID: PMC9865599 DOI: 10.3390/nu15020258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/09/2022] [Accepted: 12/15/2022] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND The under-consumption of calcium, potassium, fiber, and vitamin D is considered a U.S. public health concern. Shifts in eating patterns that increase the consumption of vegetables, fruits, whole grains, nuts/seeds, and dairy products can help achieve the recommended intakes of these nutrients, leading to healthier diets. OBJECTIVE We assessed the impact of adding 1 ounce (28.35 g) of walnuts to usual diets on diet quality and nutrients of concern, including magnesium, fiber, and potassium. METHODS We utilized 24 h dietary recalls obtained from the What We Eat in America, National Health and Nutrition Examination Survey (NHANES) and modeled the addition of 1 ounce (28.35 g) of walnuts to the usual diets of no-nut consumers. No-nut consumers aged ≥4 years (n = 7757) from the 2015-2018 NHANES study were included. Population percentages with intakes below the estimated average requirement (EAR) values for calcium, magnesium, folate, and vitamin E and above the adequate intake (AI) values for potassium and fiber were examined. Diet quality was assessed using the Healthy Eating Index-2015 (HEI-2015). The National Cancer Institute method was used to estimate the usual and modeled intakes. Significant differences between usual (current) and modeled intakes were determined using non-overlapping 95% confidence intervals. All analyses included sample weights to account for the NHANES survey design. RESULTS Adding 1 ounce (28.35 g) of walnuts to the usual diet resulted in significant reductions in the percentages of adults with intakes below the EAR for magnesium and folate (69.6% vs. 52.0%; 49.2% vs. 40.6%, respectively), and increased the percentage of adults above the AI for potassium (22.8% vs. 26.5%). A similar trend was observed among children (4-18 years). HEI scores improved significantly from 49.1 (95% CI: 48.0-50.4) to 58.5 (95% CI: 57.5-59.6) in children and from 52.4 (95% CI: 51.0-53.8) to 59.2 (95% CI: 58.0-60.5) in adults. CONCLUSIONS Adding 1 ounce (28.35 g) of walnuts to the usual diet of no-nut consumers improved the diet quality and adequacy of some under-consumed nutrients.
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Affiliation(s)
- Lisa A Spence
- Department of Applied Health Science, School of Public Health-Bloomington, Indiana University, Bloomington, IN 47905, USA
| | - Beate Henschel
- Department of Epidemiology and Biostatistics, School of Public Health-Bloomington, Indiana University, Bloomington, IN 47905, USA
| | - Rui Li
- Department of Epidemiology and Biostatistics, School of Public Health-Bloomington, Indiana University, Bloomington, IN 47905, USA
| | - Carmen D Tekwe
- Department of Epidemiology and Biostatistics, School of Public Health-Bloomington, Indiana University, Bloomington, IN 47905, USA
| | - Krisha Thiagarajah
- Department of Applied Health Science, School of Public Health-Bloomington, Indiana University, Bloomington, IN 47905, USA
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Jones JL, Sabaté J, Heskey C, Oda K, Miles F, Rajaram S. Macadamia nut effects on cardiometabolic risk factors: a randomised trial. J Nutr Sci 2023; 12:e55. [PMID: 37180485 PMCID: PMC10173088 DOI: 10.1017/jns.2023.39] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 03/29/2023] [Indexed: 05/16/2023] Open
Abstract
We sought to examine the effects of daily consumption of macadamia nuts on body weight and composition, plasma lipids and glycaemic parameters in a free-living environment in overweight and obese adults at elevated cardiometabolic risk. Utilising a randomised cross-over design, thirty-five adults with abdominal obesity consumed their usual diet plus macadamia nuts (~15 % of daily calories) for 8 weeks (intervention) and their usual diet without nuts for 8 weeks (control), with a 2-week washout. Body composition was determined by bioelectrical impedance; dietary intake was assessed with 24-h dietary recalls. Consumption of macadamia nuts led to increased total fat and MUFA intake while SFA intake was unaltered. With mixed model regression analysis, no significant changes in mean weight, BMI, waist circumference, percent body fat or glycaemic parameters, and non-significant reductions in plasma total cholesterol of 2⋅1 % (-4⋅3 mg/dl; 95 % CI -14⋅8, 6⋅1) and low-density lipoprotein (LDL-C) of 4 % (-4⋅7 mg/dl; 95 % CI -14⋅3, 4⋅8) were observed. Cholesterol-lowering effects were modified by adiposity: greater lipid lowering occurred in those with overweight v. obesity, and in those with less than the median percent body fat. Daily consumption of macadamia nuts does not lead to gains in weight or body fat under free-living conditions in overweight or obese adults; non-significant cholesterol lowering occurred without altering saturated fat intake of similar magnitude to cholesterol lowering seen with other nuts. Clinical Trial Registry Number and Website: NCT03801837 https://clinicaltrials.gov/ct2/show/NCT03801837?term = macadamia + nut&draw = 2&rank = 1.
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Key Words
- % Body fat, percent body fat
- Adiposity
- Apo A1, apoprotein A1
- Apo B, apoprotein B
- BFM, body fat mass
- Body composition
- CV, coefficient of variation
- CVD, cardiovascular disease
- Cholesterol
- DLM, dry lean mass
- HOMA2, homeostasis model assessment 2
- IR, insulin resistance
- LBM, lean body mass
- LDL-C
- Mac, macadamia nuts
- Macadamia nuts
- Palmitoleic acid
- SMM, skeletal muscle mass
- TAG, triacylglycerol
- TBW, total body water
- TC, total cholesterol
- TEE, total energy expenditure
- VLDL,, very low-density lipoprotein
- WC, waist circumference
- oxLDL, oxidised LDL
- sdLDL, small dense low-density lipoprotein
- se, standard error
- sem, standard error of the mean
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Affiliation(s)
- Julie L. Jones
- School of Public Health, Loma Linda University, Loma Linda, CA, USA
| | - Joan Sabaté
- School of Public Health, Loma Linda University, Loma Linda, CA, USA
| | - Celine Heskey
- School of Public Health, Loma Linda University, Loma Linda, CA, USA
| | - Keiji Oda
- School of Public Health, Loma Linda University, Loma Linda, CA, USA
| | - Fayth Miles
- School of Public Health, Loma Linda University, Loma Linda, CA, USA
| | - Sujatha Rajaram
- School of Public Health, Loma Linda University, Loma Linda, CA, USA
- Corresponding author: Sujatha Rajaram, email
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Balakrishna R, Bjørnerud T, Bemanian M, Aune D, Fadnes LT. Consumption of Nuts and Seeds and Health Outcomes Including Cardiovascular Disease, Diabetes and Metabolic Disease, Cancer, and Mortality: An Umbrella Review. Adv Nutr 2022; 13:2136-2148. [PMID: 36041171 PMCID: PMC9776667 DOI: 10.1093/advances/nmac077] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 04/28/2022] [Accepted: 07/26/2022] [Indexed: 01/29/2023] Open
Abstract
Consumption of nuts and seeds is associated with a range of health outcomes. Summarizing the best evidence on essential health outcomes from the consumption of nuts is essential to provide optimal recommendations. Our objective is to comprehensively assess health outcome associations related to the consumption of nuts and seeds, using a culinary definition including tree nuts and peanuts (registered in PROSPERO: CRD42021258300). Health outcomes of interest include cardiovascular disease, cancer, diabetes, obesity, respiratory disease, mortality, and their disease biomarkers. We present associations for high compared with low consumption, per serving, and dose-response relations. MEDLINE, Embase, Cochrane, and Epistemonikos were searched and screened for systematic reviews and meta-analyses. Evidence was extracted from 89 articles on the consumption of nuts and relevant health outcomes, including 23 articles with meta-analysis on disease and mortality, 66 articles on biomarkers for disease, and 9 articles on allergy/adverse outcomes. Intake of nuts was associated with reduced risk of cardiovascular diseases and related risk factors, with moderate quality of evidence. An intake of 28 g/d nuts compared with not eating nuts was associated with a 21% RR reduction of cardiovascular disease (including coronary heart disease incidence and mortality, atrial fibrillation, and stroke mortality), an 11% risk reduction of cancer deaths, and 22% reduction in all-cause mortality. Nut consumption was also inversely associated with mortality from respiratory diseases, infectious diseases, and diabetes; however, associations between nut consumption and diabetes incidence were mixed. Meta-analyses of trials on biomarkers for disease generally mirrored meta-analyses from observational studies on cardiovascular disease, cancers, and diabetes. Allergy and related adverse reactions to nuts were observed in 1-2% of adult populations, with substantial heterogeneity between studies. Overall, the current evidence supports dietary recommendations to consume a handful of nuts and seeds per day for people without allergies to these foods.
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Affiliation(s)
- Rajiv Balakrishna
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - Tonje Bjørnerud
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - Mitra Bemanian
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
- Department of Addiction Medicine, Haukeland University Hospital, Bergen, Norway
| | - Dagfinn Aune
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom
- Department of Nutrition, Oslo New University College, Oslo, Norway
- Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, Oslo, Norway
- Unit of Cardiovascular and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden
| | - Lars T Fadnes
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
- Department of Addiction Medicine, Haukeland University Hospital, Bergen, Norway
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Lockyer S, de la Hunty AE, Steenson S, Spiro A, Stanner SA. Walnut consumption and health outcomes with public health relevance-a systematic review of cohort studies and randomized controlled trials published from 2017 to present. Nutr Rev 2022; 81:26-54. [PMID: 35912883 PMCID: PMC9732668 DOI: 10.1093/nutrit/nuac040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
CONTEXT Considering the accumulation of recent studies investigating the health effects of walnut consumption, both including and beyond cardiovascular health effects, a systematic review of this literature to investigate the strength of the evidence is warranted. OBJECTIVE To investigate associations between walnut consumption and outcomes with public health relevance (specifically all-cause mortality, type 2 diabetes, CVD, metabolic syndrome, obesity, cancer, neurological and mental health, musculoskeletal, gastrointestinal, and maternal disorders) and the effect on associated disease risk markers, reported in studies published from 2017 to present. DATA SOURCES MEDLINE, FSTA, CENTRAL, and Scopus were searched from 1 January 2017 to 5 May 2021. DATA EXTRACTION Human studies (cohort studies and RCTs) ≥3 weeks in duration comparing consumption of walnuts (whole, pieces, or 100% butter) to a control and measuring associations with relevant public health outcomes and disease risk markers were assessed. Key study characteristics were extracted independently by 2 investigators using a standardized table. The quality of the studies was assessed using the Cochrane Risk-of-Bias tool 2.0 and the Newcastle-Ottawa Scale. DATA ANALYSIS Only 1 RCT was considered to be at low risk of bias for any of its outcomes. The cohort studies were considered to be of moderate or high quality. The results were synthesized using vote counting, based on the direction of effect. Thirty-three articles, 23 describing RCTs (walnut dose ∼10-99 g/day, 1,948 subjects) and 10 describing cohort studies (∼675,928 subjects), were included. Vote counting could be performed for the blood lipids, cardiovascular function, inflammation- and hemostatic-related factors, markers of glucose metabolism, and body weight and composition outcome groupings. The results are presented in effect direction plots. With respect to blood lipids, results from 8/8 RCTs favoured walnuts, in accordance with associations with a reduced risk of CVD suggested by cohort studies; results from 6/6 RCTs favoured control with respect to body weight and composition, although most of these effects were small. This was contrary to cohort study results suggesting small benefits of walnut consumption on body weight. There was no overall consistent direction of effect for cardiovascular function, markers of glucose metabolism, or inflammation- and hemostatic-related factors. CONCLUSIONS Evidence published since 2017 is consistent with previous research suggesting that walnut consumption improves lipid profiles and is associated with reduced CVD risk. Evidence is accumulating in other areas, such as cognitive health, although more research is needed to draw firm conclusions. SYSTEMATIC REVIEW REGISTRATION PROSPERO registration no. CRD4202122.
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Affiliation(s)
- Stacey Lockyer
- are employed by the British Nutrition Foundation, London, UK
| | | | - Simon Steenson
- are employed by the British Nutrition Foundation, London, UK
| | - Ayela Spiro
- are employed by the British Nutrition Foundation, London, UK
| | - Sara A Stanner
- are employed by the British Nutrition Foundation, London, UK
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42
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Arrout A, El Ghallab Y, El Otmani IS, Said AAH. Ethnopharmacological survey of plants prescribed by herbalists for traditional treatment of hypercholesterolemia in Casablanca, Morocco. J Herb Med 2022. [DOI: 10.1016/j.hermed.2022.100607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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43
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Alshahrani SM, Mashat RM, Almutairi D, Mathkour A, Alqahtani SS, Alasmari A, Alzahrani AH, Ayed R, Asiri MY, Elsherif A, Alsabaani A. The Effect of Walnut Intake on Lipids: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Nutrients 2022; 14:4460. [PMID: 36364723 PMCID: PMC9655834 DOI: 10.3390/nu14214460] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/17/2022] [Accepted: 10/21/2022] [Indexed: 01/25/2023] Open
Abstract
Cardiovascular diseases (CVD) are the leading causes of death worldwide. Dyslipidemia is a cardiometabolic risk factor of CVD, yet it can be modifiable. Walnuts have been suggested as a dietary intervention to improve the lipid profile. Therefore, we reviewed the literature to assess the evidence linking walnut intake to the improvement of blood lipids, including total cholesterol (TC), low-density lipoprotein (LDL-C) cholesterol, high-density lipoprotein (HDL-C) cholesterol, and triglycerides (TG). PubMed and Embase databases were searched from 2010 up to March 2022. We limited our search to randomized controlled trials conducted on humans and published in English during the specified period. Cochrane's risk of bias tool for interventional studies was used. A random-effects model was used for the meta-analysis, and weighted mean differences were obtained (WMD) Thirteen trials from the U.S., Europe, and Asia were included. Walnut intake was associated with significant reductions in TC (WMD: -8.58 mg/dL), LDL-C (WMD: -5.68 mg/dL), and TG (WMD: -10.94 mg/dL). Walnut consumption was not associated with HDL-C. Subgroup analysis showed that overweight/obese and those with comorbidities had more lipid improvement. A longer trial duration did result in further improvements. However, our results may be prone to bias due to extraneous confounding factors. Additionally, levels of heterogeneity were considerable for some outcomes of interest. Results from this meta-analysis provide evidence for the health benefits of walnuts on blood lipids. Walnuts possibly reduce the risk of CVD; thus, they can be successfully added to a dietary pattern to enhance health benefits.
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Affiliation(s)
- Saeed Mastour Alshahrani
- Department of Public Health, College of Applied Medical Sciences, King Khalid University, Khamis Mushait 62529, Saudi Arabia
| | - Reham M. Mashat
- Nutrition and Food Sciences, College of Home Economics, King Khalid University, Abha 62529, Saudi Arabia
| | - Diaa Almutairi
- Prince Sultan Military College of Health Sciences, Dhahran 34247, Saudi Arabia
| | | | - Sahar Saad Alqahtani
- Department of Public Health, College of Applied Medical Sciences, King Khalid University, Khamis Mushait 62529, Saudi Arabia
| | | | | | - Reem Ayed
- Public Health Authority, Riyadh 13351, Saudi Arabia
| | | | - Alsanussi Elsherif
- Department of Family and Community Medicine, Faculty of Medicine, University of Benghazi, Benghazi 1308, Libya
| | - Abdullah Alsabaani
- Department of Family and Community Medicine, College of Medicine, King Khalid University, Abha 62529, Saudi Arabia
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44
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Sala-Vila A, Fleming J, Kris-Etherton P, Ros E. Impact of α-Linolenic Acid, the Vegetable ω-3 Fatty Acid, on Cardiovascular Disease and Cognition. Adv Nutr 2022; 13:1584-1602. [PMID: 35170723 PMCID: PMC9526859 DOI: 10.1093/advances/nmac016] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 12/31/2021] [Accepted: 02/11/2022] [Indexed: 01/28/2023] Open
Abstract
Given the evidence of the health benefits of plant-based diets and long-chain n-3 (ω-3) fatty acids, there is keen interest in better understanding the role of α-linolenic acid (ALA), a plant-derived n-3 fatty acid, on cardiometabolic diseases and cognition. There is increasing evidence for ALA largely based on its major food sources (i.e., walnuts and flaxseed); however, this lags behind our understanding of long-chain n-3 fatty acids. Meta-analyses of observational studies have shown that increasing dietary ALA is associated with a 10% lower risk of total cardiovascular disease and a 20% reduced risk of fatal coronary heart disease. Three randomized controlled trials (RCTs) [AlphaOmega trial, Prevención con Dieta Mediterránea (PREDIMED) trial, and Lyon Diet Heart Study] all showed benefits of diets high in ALA on cardiovascular-related outcomes, but the AlphaOmega trial, designed to specifically evaluate ALA effects, only showed a trend for benefit. RCTs have shown that dietary ALA reduced total cholesterol, LDL cholesterol, triglycerides, and blood pressure, and epidemiologic studies and some trials also have shown an anti-inflammatory effect of ALA, which collectively account for, in part, the cardiovascular benefits of ALA. A meta-analysis reported a trend toward diabetes risk reduction with both dietary and biomarker ALA. For metabolic syndrome and obesity, the evidence for ALA benefits is inconclusive. The role of ALA in cognition is in the early stages but shows promising evidence of counteracting cognitive impairment. Much has been learned about the health benefits of ALA and with additional research we will be better positioned to make strong evidence-based dietary recommendations for the reduction of many chronic diseases.
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Affiliation(s)
- Aleix Sala-Vila
- Fatty Acid Research Institute, Sioux Falls, SD, USA
- Cardiovascular Risk and Nutrition, Hospital del Mar Medical Research Institute (IMIM), Barcelona, Spain
| | - Jennifer Fleming
- Department of Nutritional Sciences, College of Health and Human Development, Pennsylvania State University, University Park, PA, USA
| | - Penny Kris-Etherton
- Department of Nutritional Sciences, College of Health and Human Development, Pennsylvania State University, University Park, PA, USA
| | - Emilio Ros
- Lipid Clinic, Endocrinology and Nutrition Service, Hospital Clínic, August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain
- CIBER Physiopathology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
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Yi SY, Steffen LM, Zhou X, Shikany JM, Jacobs DR. Association of nut consumption with CVD risk factors in young to middle-aged adults: The Coronary Artery Risk Development in Young Adults (CARDIA) study. Nutr Metab Cardiovasc Dis 2022; 32:2321-2329. [PMID: 35970686 PMCID: PMC9529993 DOI: 10.1016/j.numecd.2022.07.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 07/11/2022] [Accepted: 07/18/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND AIMS Few studies have examined long-term associations of walnut, other nut, and no nut consumption with cardiovascular disease (CVD) risk factors. Results from prospective studies with long-term follow-up can provide further evidence for dietary guideline messaging to consume nuts. Therefore, we examined the associations of walnut, other nut, and no nut consumption with diet quality and CVD risk factors over 30 years of follow-up. METHODS AND RESULTS Data were analyzed from 3092 young adults enrolled in the Coronary Artery Risk Development in Young Adults (CARDIA) study. Dietary intake, including walnuts and other nuts, was assessed 3 times over 20 years. CVD risk factors were measured at multiple exams. General linear regression evaluated the associations of walnut, other nut, and no nut consumption with CVD risk factors over 30 years (Y30) of follow-up. The 20-year cumulative mean intake of walnuts (0.74 oz/d), other nuts (1.6 oz/d), or no nut consumption was differentially associated with HEI-2015 and CVD risk factors by Y30. Generally, walnut consumers had significantly higher HEI-2015, lower body mass index, waist circumference, blood pressure, and triglyceride concentration, and gained less weight since baseline than other nut consumers (p ≤ 0.05 for all). Further, walnut consumers had lower fasting blood glucose than no nut consumers (p ≤ 0.05). CONCLUSION Study findings that walnut and other nut consumption was associated with better CVD risk factors and diet quality aligns with the 2020-2025 US. Dietary Guidelines for Americans recommendation to consume nuts, such as walnuts, within the context of a healthy diet.
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Affiliation(s)
- So-Yun Yi
- University of Minnesota School of Public Health, Division of Epidemiology and Community Health; Minneapolis, MN, USA
| | - Lyn M Steffen
- University of Minnesota School of Public Health, Division of Epidemiology and Community Health; Minneapolis, MN, USA.
| | - Xia Zhou
- University of Minnesota School of Public Health, Division of Epidemiology and Community Health; Minneapolis, MN, USA
| | - James M Shikany
- Division of Preventive Medicine, School of Medicine, University of Alabama at Birmingham; Birmingham, AL, USA
| | - David R Jacobs
- University of Minnesota School of Public Health, Division of Epidemiology and Community Health; Minneapolis, MN, USA
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García-Gavilán JF, Connelly MA, Babio N, Mantzoros CS, Ros E, Salas-Salvadó J. Nut consumption is associated with a shift of the NMR lipoprotein subfraction profile to a less atherogenic pattern among older individuals at high CVD risk. Cardiovasc Diabetol 2022; 21:189. [PMID: 36127725 PMCID: PMC9487141 DOI: 10.1186/s12933-022-01624-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 09/08/2022] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Scientific evidence has accumulated on the beneficial effects of nut consumption on cardiovascular risk and cholesterol reduction, but few studies have examined the effects of nuts on advanced measures of lipoprotein atherogenicity determined by nuclear magnetic resonance (NMR) spectroscopy. We analyzed associations between the amount and type of of nuts consumed and advanced measures of lipoprotein atherogenity and insulin resistance in older individuals at high cardiovascular risk. METHODS The present observational study was carried out within the framework of the Prevención con Dieta Mediterránea (PREDIMED) trial. Cross-sectional and longitudinal analyses after 1-year of follow-up were conducted in 196 men and women recruited in the PREDIMED-Reus (Spain) center. Dietary intake was assessed using a validated semi-quantitative food questionnaire. Baseline and 1-year fasting plasma lipoprotein and metabolite profiling were performed in plasma using NMR spectra Vantera® Clinical Analyzer. Associations by tertiles of nut consumption between baseline and 1-year changes and advanced measures of lipoprotein atherogenicity, branched chain amminoacids, and measures of insulin resistance were tested by multivariable-adjusted ANCOVA models. RESULTS Compared to paticipants in the bottom tertile, those in the top tertile of total nut consumption showed higher levels of large HDL particles and HDL-cholesterol, lower levels of branched-chain amino acids (BCAA) and GlycA, and reduced lipoprotein insulin resistance and diabetes risk index. Participants in the top tertile of walnut consumption disclosed lower levels of very large VLDL, total LDL particles, LDL-cholesterol, and GlycA. Participants in the top tertile of non-walnut nut consumption displayed higher levels of total HDL particles, HDL-cholesterol and apoliporotein A1, lower BCAA and GlycA, and reduced lipoprotein insulin resistance. Participants in the top tertile of 1-year changes in walnut consumption showed increases in medium-sized HDL particles in comparison to the bottom tertile. CONCLUSIONS In older individuals at high cardiovascular risk, increasing nut consumption was associated with a shift of the NMR lipoprotein subfraction profile to a less atherogenic pattern, as well as lower circulating concentrations of BCAA and decreased insulin resistance. These results provide novel mechanistic insight into the cardiovascular benefit of nut consumption. Trial registration ISRCTN35739639; registration date: 05/10/2005; recruitment start date 01/10/2003.
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Affiliation(s)
- Jesús F García-Gavilán
- Universitat Rovira i Virgili, Departament de Bioquímica i Biotecnologia, Unitat de Nutrició Humana, 43201, Reus, Tarragona, Spain
- Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain
- Consorcio CIBER, Fisiopatología de la Obesidad y Nutrición (CIBERObn), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Margery A Connelly
- Laboratory Corporation of America® Holdings (Labcorp), Morrisville, Raleigh, NC, USA
| | - Nancy Babio
- Universitat Rovira i Virgili, Departament de Bioquímica i Biotecnologia, Unitat de Nutrició Humana, 43201, Reus, Tarragona, Spain
- Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain
- Consorcio CIBER, Fisiopatología de la Obesidad y Nutrición (CIBERObn), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Christos S Mantzoros
- Department of Medicine, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, MA, 02215, USA
- Section of Endocrinology, VA Boston Healthcare System, Jamaica Plain, Boston, MA, 02130, USA
| | - Emilio Ros
- Consorcio CIBER, Fisiopatología de la Obesidad y Nutrición (CIBERObn), Instituto de Salud Carlos III (ISCIII), Madrid, Spain.
- Lipid Clinic, Department of Endocrinology and Nutrition, Agust Pi i Sunyer Biomedical Research Institute (IDIBAPS), Hospital Clinic, University of Barcelona, Barcelona, Spain.
| | - Jordi Salas-Salvadó
- Universitat Rovira i Virgili, Departament de Bioquímica i Biotecnologia, Unitat de Nutrició Humana, 43201, Reus, Tarragona, Spain.
- Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain.
- Consorcio CIBER, Fisiopatología de la Obesidad y Nutrición (CIBERObn), Instituto de Salud Carlos III (ISCIII), Madrid, Spain.
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Romić S, Tepavčević S, Popović T, Zec M, Stojiljković M, Ćulafić T, Bošković M, Korićanac G. Consumption of walnuts suppresses the conversion of palmitic to palmitoleic acid and enhances omega-3 fatty acid metabolism in the heart of fructose-fed rats. Int J Food Sci Nutr 2022; 73:940-953. [PMID: 35918845 DOI: 10.1080/09637486.2022.2107186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
Walnut consumption mostly has a positive implication for cardiovascular health. Walnut diet effects on the cardiac fatty acid (FA) metabolism of healthy rats and those with fructose diet-induced metabolic burden were analysed. Both walnuts and fructose increased CD36 transporter level and the nuclear content of some/all of Lipin 1/PPARα/PGC-1 complex partners, as well as cytosolic and nuclear FOXO1. However, fructose, independently of walnuts, increased the content of palmitic (PA), oleic, and vaccenic acid (VA), while in walnut-fed rats failed to increase palmitoleic acid (POA) level and the POA/PA ratio, as well as total MUFA content. In opposite, walnuts reduced the level of PA and VA and increased alpha-linolenic, eicosapentaenoic and docosapentaenoic acid level, regardless of fructose. In conclusion, both fructose and walnuts stimulated the uptake and oxidation of FA in the heart, but the walnuts, opposite to fructose, favourably altered cardiac FA profile in healthy and metabolically compromised rats.
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Affiliation(s)
- Snježana Romić
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Serbia
| | - Snežana Tepavčević
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Serbia
| | - Tamara Popović
- Centre of Excellence in Nutrition and Metabolism Research, Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, Serbia
| | - Manja Zec
- Centre of Excellence in Nutrition and Metabolism Research, Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, Serbia.,School of Nutritional Sciences and Wellness, University of Arizona, Tucson, AZ, USA
| | - Mojca Stojiljković
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Serbia
| | - Tijana Ćulafić
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Serbia
| | - Maja Bošković
- Laboratory for Radiobiology and Molecular Genetics, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Serbia
| | - Goran Korićanac
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Serbia
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Mateș L, Popa DS, Rusu ME, Fizeșan I, Leucuța D. Walnut Intake Interventions Targeting Biomarkers of Metabolic Syndrome and Inflammation in Middle-Aged and Older Adults: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Antioxidants (Basel) 2022; 11:1412. [PMID: 35883903 PMCID: PMC9312161 DOI: 10.3390/antiox11071412] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/17/2022] [Accepted: 07/19/2022] [Indexed: 02/04/2023] Open
Abstract
Biomarkers of metabolic syndrome and inflammation are pathophysiological predictors and factors of senescence and age-related diseases. Recent evidence showed that particular diet components, such as walnuts rich in antioxidant bioactive compounds and with a balanced lipid profile, could have positive outcomes on human health. A systematic search in PubMed, EMBASE, Cochrane Library, Scopus, and ClinicalTrials.gov databases was performed to retrieve randomized controlled trials published from the beginning of each database through November 2021, reporting on the outcomes of walnut consumption over 22 metabolic syndrome and inflammatory markers in middle-aged and older adults. The search strategy rendered 17 studies in the final selection, including 11 crossover and 6 parallel trials. The study revealed that walnut-enriched diets had statistically significant decreasing effects for triglyceride, total cholesterol, and LDL cholesterol concentrations on some inflammatory markers and presented no consequences on anthropometric and glycemic parameters. Although further studies and better-designed ones are needed to strengthen these findings, the results emphasize the benefits of including walnuts in the dietary plans of this age group.
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Affiliation(s)
- Letiția Mateș
- Department of Toxicology, Faculty of Pharmacy, Iuliu Hatieganu University of Medicine and Pharmacy, 8 Victor Babes, 400012 Cluj-Napoca, Romania; (L.M.); (I.F.)
| | - Daniela-Saveta Popa
- Department of Toxicology, Faculty of Pharmacy, Iuliu Hatieganu University of Medicine and Pharmacy, 8 Victor Babes, 400012 Cluj-Napoca, Romania; (L.M.); (I.F.)
| | - Marius Emil Rusu
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, Iuliu Hatieganu University of Medicine and Pharmacy, 8 Victor Babes, 400012 Cluj-Napoca, Romania
| | - Ionel Fizeșan
- Department of Toxicology, Faculty of Pharmacy, Iuliu Hatieganu University of Medicine and Pharmacy, 8 Victor Babes, 400012 Cluj-Napoca, Romania; (L.M.); (I.F.)
| | - Daniel Leucuța
- Department of Medical Informatics and Biostatistics, Faculty of Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 8 Victor Babes, 400012 Cluj-Napoca, Romania; (D.L.)
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The Effect of a Peanut-Enriched Weight Loss Diet Compared to a Low-Fat Weight Loss Diet on Body Weight, Blood Pressure, and Glycemic Control: A Randomized Controlled Trial. Nutrients 2022; 14:nu14142986. [PMID: 35889947 PMCID: PMC9318508 DOI: 10.3390/nu14142986] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 07/04/2022] [Accepted: 07/10/2022] [Indexed: 01/08/2023] Open
Abstract
The objective of this study was to examine the effect of consuming 35 g of peanuts prior to two main meals per day as part of a weight loss diet, compared to a traditional low-fat weight loss diet, on body weight, markers of glycemic control, and blood pressure in adults at risk of type 2 diabetes over 6 months. A two-arm randomized controlled trial was conducted. Adults (age > 18 years) with a BMI of >26 kg/m2 at risk of type 2 diabetes were randomized to the peanut group or the traditional low-fat-diet group (control). The peanut group was advised to consume 35 g of lightly salted dry-roasted peanuts prior to two main meals per day. Participants in the control group were given education to follow a low-fat diet. Both groups had dietetic counseling to restrict energy intake (women: <5500 kJ/1300 kcal/d; men: <7000 kJ/1700 kcal/d). Outcome assessment occurred at baseline, 3 months, and 6 months. In total, 107 participants were randomized (65% female; mean age 58 ± 14 years, BMI 33 ± 5.4 kg/m2, waist circumference 109 ± 13 cm, AUSDRISK score 15 ± 5 points), and 76 participants completed the study. No between-group difference in body weight (primary outcome) was observed at 6 months (mean difference, −0.12 kg; 95% CI, −2.42, 2.18; p = 0.92). The mean weight loss at 6 months was 6.7 ± 5.1 kg in the cohort (visit p < 0.001). HbA1c, fasting glucose, fasting insulin, 2-h glucose, and HOMA-IR were not different between the groups. Systolic blood pressure was reduced to a greater extent in the peanut group vs. the control group at 6 months (−5.33 mmHg; 95% CI, −9.23, −1.43; p = 0.008). Intake of 35 g of peanuts prior to two main meals per day, in the context of an energy-restricted diet, resulted in weight loss comparable to a traditional low-fat weight loss diet without preloads. Greater systolic blood pressure reductions were observed with peanut intake, which may lower cardiovascular disease risk.
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Nuts and Metabolic Syndrome: Reducing the Burden of Metabolic Syndrome in Menopause. Nutrients 2022; 14:nu14081677. [PMID: 35458240 PMCID: PMC9028023 DOI: 10.3390/nu14081677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 04/06/2022] [Accepted: 04/13/2022] [Indexed: 12/04/2022] Open
Abstract
Menopause imposes a dramatic fall in estrogens, which is followed by an increase in the proportion of fat. The rising androgen/estrogen ratio along the menopause transition favors the accumulation of central fat, which contributes to insulin resistance and a series of concatenated effects, leading to a higher incidence of metabolic syndrome. The modulatory effect of diet on the metabolic syndrome phenotype has been shown for the Mediterranean diet, and nuts are key determinants of these health benefits. This review of the impact of nuts on the risk factors of the metabolic syndrome cluster examined studies—prioritizing meta-analyses and systemic reviews—to summarize the potential benefits of nut ingestion on the risk of metabolic syndrome associated with menopause. Nuts have a general composition profile that includes macronutrients, with a high proportion of unsaturated fat, bioactive compounds, and fiber. The mechanisms set in motion by nuts have shown different levels of efficacy against the disturbances associated with metabolic syndrome, but a beneficial impact on lipids and carbohydrate metabolism, and a potential, but minimal reduction in blood pressure and fat accumulation have been found.
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