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Jakobi B, Cimetti C, Mulder D, Vlaming P, Franke B, Hoogman M, Arias-Vasquez A. The Role of Diet and the Gut Microbiota in Reactive Aggression and Adult ADHD-An Exploratory Analysis. Nutrients 2024; 16:2174. [PMID: 39064617 PMCID: PMC11279949 DOI: 10.3390/nu16142174] [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: 05/14/2024] [Revised: 06/10/2024] [Accepted: 06/21/2024] [Indexed: 07/28/2024] Open
Abstract
Attention-deficit/hyperactivity disorder (ADHD) is a common neurodevelopmental condition, of-ten persistent into adulthood and accompanied by reactive aggression. Associations of diet and the gut-microbiome with ADHD as well as emotional behaviors suggest potential clinical rele-vance of both. However, studies on diet and the gut-microbiome in human reactive aggression are lacking, and should investigate the interaction between diet and the gut-microbiome leading to behavioral changes to assess their potential clinical relevance. In this study, we investigated the interaction of diet and gut-microbiota with adult ADHD and reactive aggression in 77 adults with ADHD and 76 neurotypical individuals. We studied the relationships of ADHD and reactive ag-gression with dietary patterns, bacterial community and taxonomic differences of 16S-sequenced fecal microbiome samples, and potential mediating effects of bacterial genus abundance on signifi-cant diet-behavior associations. The key findings include: (1) An association of high-energy intake with reactive aggeression scores (pFDR = 4.01 × 10-02); (2) Significant associations of several genera with either reactive aggression or ADHD diagnosis with no overlap; and (3) No significant mediation effects of the selected genera on the association of reactive aggression with the high-energy diet. Our results suggest that diet and the microbiome are linked to reactive aggression and/or ADHD individually, and highlight the need to further study the way diet and the gut-microbiome inter-act.
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Affiliation(s)
- Babette Jakobi
- Department of Human Genetics, Donders Institute for Brain, Cognition and Behavior, Radboud University Nijmegen Medical Center, 6525 GA Nijmegen, The Netherlands; (B.J.); (C.C.); (D.M.); (P.V.); (B.F.); (M.H.)
- Department of Psychiatry, Donders Institute for Brain, Cognition and Behavior, Radboud University Nijmegen Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Chiara Cimetti
- Department of Human Genetics, Donders Institute for Brain, Cognition and Behavior, Radboud University Nijmegen Medical Center, 6525 GA Nijmegen, The Netherlands; (B.J.); (C.C.); (D.M.); (P.V.); (B.F.); (M.H.)
| | - Danique Mulder
- Department of Human Genetics, Donders Institute for Brain, Cognition and Behavior, Radboud University Nijmegen Medical Center, 6525 GA Nijmegen, The Netherlands; (B.J.); (C.C.); (D.M.); (P.V.); (B.F.); (M.H.)
- Department of Psychiatry, Donders Institute for Brain, Cognition and Behavior, Radboud University Nijmegen Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Priscilla Vlaming
- Department of Human Genetics, Donders Institute for Brain, Cognition and Behavior, Radboud University Nijmegen Medical Center, 6525 GA Nijmegen, The Netherlands; (B.J.); (C.C.); (D.M.); (P.V.); (B.F.); (M.H.)
- Department of Internal Medicine, Erasmus MC, University Medical Center, 3015 GD Rotterdam, The Netherlands
| | - Barbara Franke
- Department of Human Genetics, Donders Institute for Brain, Cognition and Behavior, Radboud University Nijmegen Medical Center, 6525 GA Nijmegen, The Netherlands; (B.J.); (C.C.); (D.M.); (P.V.); (B.F.); (M.H.)
- Department of Psychiatry, Donders Institute for Brain, Cognition and Behavior, Radboud University Nijmegen Medical Center, 6525 GA Nijmegen, The Netherlands
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behavior, Radboud University Nijmegen Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Martine Hoogman
- Department of Human Genetics, Donders Institute for Brain, Cognition and Behavior, Radboud University Nijmegen Medical Center, 6525 GA Nijmegen, The Netherlands; (B.J.); (C.C.); (D.M.); (P.V.); (B.F.); (M.H.)
- Department of Psychiatry, Donders Institute for Brain, Cognition and Behavior, Radboud University Nijmegen Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Alejandro Arias-Vasquez
- Department of Human Genetics, Donders Institute for Brain, Cognition and Behavior, Radboud University Nijmegen Medical Center, 6525 GA Nijmegen, The Netherlands; (B.J.); (C.C.); (D.M.); (P.V.); (B.F.); (M.H.)
- Department of Psychiatry, Donders Institute for Brain, Cognition and Behavior, Radboud University Nijmegen Medical Center, 6525 GA Nijmegen, The Netherlands
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Bayranj Z, Fotros D, Sohouli MH, Rohani P, Eslahi M, Ferdosi S, Khodadadi N, Hosseinzadeh M. The relation between MIND diet with odds of attention-deficit/hyperactivity disorder in Iranian children: a case-control study. Child Neuropsychol 2024:1-15. [PMID: 38975687 DOI: 10.1080/09297049.2024.2375493] [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: 01/15/2024] [Accepted: 06/25/2024] [Indexed: 07/09/2024]
Abstract
This study aims to investigate the association between the MIND index (Mediterranean- Dietary approaches to Stop Hypertension diet Intervention for Neurodegenerative Delay) and attention-deficit hyperactivity disorder (ADHD) in the Iranian children. It builds upon existing research that highlights the role of dietary antioxidants in alleviating psychological disorders, cognitive impairments, and memory deficits. Additionally, previous studies have separately explored the beneficial effects of the Mediterranean and DASH diets on these issues. A case-control study was undertaken in Iran, involving a sample of 360 children and adolescents aged 7-13 years. Participants were divided into two groups, namely the case group (n = 120) and the control group (n = 240), with age and sex being matched between the groups. The Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV-TR) was employed for the diagnosis of ADHD. The MIND diet score was computed using the food intake data acquired from the Food Frequency Questionnaire (FFQ) completed by the subjects. The mean ± SD for the age and BMI of the study population was 8.76 ± 1.64 years and 16.90 ± 3.58 kg/m2, respectively. The mean score of MIND in this study was 27.93. After adjustment for potential confounder in the final model, subjects in highest compared to the lowest quartile of MIND diet score had significantly lower odds of ADHD (OR = 0.59, 95% CI 0.37-0.83; P-trend = 0.019). This study provides valuable evidence suggesting that adherence to the MIND diet is associated with decreased odds of ADHD.
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Affiliation(s)
- Zahra Bayranj
- Department of Clinical Nutrition and Dietetics, Kashan University of Medical Sciences, Kashan, Iran
| | - Danial Fotros
- Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Hassan Sohouli
- Student Research Committee, Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Pediatric Gastroenterology and Hepatology Research Center, Pediatrics Centre of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Pejman Rohani
- Pediatric Gastroenterology and Hepatology Research Center, Pediatrics Centre of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Masoumeh Eslahi
- Department of Clinical Nutrition and Dietetics, Kashan University of Medical Sciences, Kashan, Iran
| | - Samira Ferdosi
- Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Navideh Khodadadi
- Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mahdieh Hosseinzadeh
- Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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Gertler TS, Blackford R. Bringing nutritional ketosis to the table as an option for healing the pediatric brain. Front Nutr 2024; 11:1408327. [PMID: 38933892 PMCID: PMC11199727 DOI: 10.3389/fnut.2024.1408327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Accepted: 05/31/2024] [Indexed: 06/28/2024] Open
Abstract
Our core premise is that personalized variations of a ketogenic diet are likely to benefit pediatric patients with neuropsychiatric symptoms across multiple domains. Although pediatric epilepsy is currently a well-accepted indication for a strict ketogenic diet, there is a dearth of knowledge and therefore clinical guidelines upon which to recommend nutritional ketosis for pervasive pediatric conditions such as autism spectrum disorder and ADHD, even when comorbid epilepsy is present. However, there are published cohort studies and current clinical trials implementing medical ketogenic therapies for cognitive impairment, psychiatric comorbidities, motor disability, and even neuroinflammation. As holistic practitioners, it is imperative that we consider the health of a child in its entirety - and additionally offer the ketogenic diet as a therapeutic option when it may be synergistic in treating extra-neurologic diseases such as obesity. While there are uniquely pediatric potential adverse side effects such as linear growth deceleration and micronutrient deficiencies, previous trials in epilepsy and our center's experience have already proven the ketogenic diet to be a low-risk intervention when optimized with appropriate patient monitoring and support.
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Affiliation(s)
- Tracy S. Gertler
- Division of Pediatric Neurology, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL, United States
| | - Robyn Blackford
- Division of Clinical Nutrition, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL, United States
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Dong H, Koerts J, Pijnenborg GHM, Scherbaum N, Müller BW, Fuermaier ABM. Cognitive Underperformance in a Mixed Neuropsychiatric Sample at Diagnostic Evaluation of Adult ADHD. J Clin Med 2023; 12:6926. [PMID: 37959391 PMCID: PMC10647211 DOI: 10.3390/jcm12216926] [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: 08/28/2023] [Revised: 10/31/2023] [Accepted: 11/02/2023] [Indexed: 11/15/2023] Open
Abstract
(1) Background: The clinical assessment of attention-deficit/hyperactivity disorder (ADHD) in adulthood is known to show non-trivial base rates of noncredible performance and requires thorough validity assessment. (2) Objectives: The present study estimated base rates of noncredible performance in clinical evaluations of adult ADHD on one or more of 17 embedded validity indicators (EVIs). This study further examines the effect of the order of test administration on EVI failure rates, the association between cognitive underperformance and symptom overreporting, and the prediction of cognitive underperformance by clinical information. (3) Methods: A mixed neuropsychiatric sample (N = 464, ADHD = 227) completed a comprehensive neuropsychological assessment battery on the Vienna Test System (VTS; CFADHD). Test performance allows the computation of 17 embedded performance validity indicators (PVTs) derived from eight different neuropsychological tests. Further, all participants completed several self- and other-report symptom rating scales assessing depressive symptoms and cognitive functioning. The Conners' Adult ADHD Rating Scale and the Beck Depression Inventory-II were administered to derive embedded symptom validity measures (SVTs). (4) Results and conclusion: Noncredible performance occurs in a sizeable proportion of about 10% up to 30% of individuals throughout the entire battery. Tests for attention and concentration appear to be the most adequate and sensitive for detecting underperformance. Cognitive underperformance represents a coherent construct and seems dissociable from symptom overreporting. These results emphasize the importance of performing multiple PVTs, at different time points, and promote more accurate calculation of the positive and negative predictive values of a given validity measure for noncredible performance during clinical assessments. Future studies should further examine whether and how the present results stand in other clinical populations, by implementing rigorous reference standards of noncredible performance, characterizing those failing PVT assessments, and differentiating between underlying motivations.
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Affiliation(s)
- Hui Dong
- Department of Clinical and Developmental Neuropsychology, Faculty of Behavioral and Social Sciences, University of Groningen, 9712 TS Groningen, The Netherlands; (H.D.); (J.K.); (G.H.M.P.)
| | - Janneke Koerts
- Department of Clinical and Developmental Neuropsychology, Faculty of Behavioral and Social Sciences, University of Groningen, 9712 TS Groningen, The Netherlands; (H.D.); (J.K.); (G.H.M.P.)
| | - Gerdina H. M. Pijnenborg
- Department of Clinical and Developmental Neuropsychology, Faculty of Behavioral and Social Sciences, University of Groningen, 9712 TS Groningen, The Netherlands; (H.D.); (J.K.); (G.H.M.P.)
| | - Norbert Scherbaum
- LVR University Hospital, Department of Psychiatry and Psychotherapy, Faculty of Medicine, University of Duisburg-Essen, 45147 Essen, Germany; (N.S.); (B.W.M.)
| | - Bernhard W. Müller
- LVR University Hospital, Department of Psychiatry and Psychotherapy, Faculty of Medicine, University of Duisburg-Essen, 45147 Essen, Germany; (N.S.); (B.W.M.)
- Department of Psychology, University of Wuppertal, 42119 Wuppertal, Germany
| | - Anselm B. M. Fuermaier
- Department of Clinical and Developmental Neuropsychology, Faculty of Behavioral and Social Sciences, University of Groningen, 9712 TS Groningen, The Netherlands; (H.D.); (J.K.); (G.H.M.P.)
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Lange KW, Lange KM, Nakamura Y, Reissmann A. Nutrition in the Management of ADHD: A Review of Recent Research. Curr Nutr Rep 2023; 12:383-394. [PMID: 37505402 PMCID: PMC10444659 DOI: 10.1007/s13668-023-00487-8] [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] [Accepted: 07/11/2023] [Indexed: 07/29/2023]
Abstract
PURPOSE OF REVIEW Various nutrients and diet quality have been suggested to be involved in the pathophysiology of ADHD. The purpose of this review was to examine data from recent cohort studies and dietary interventions to determine whether nutrition may play a role in the management of ADHD. RECENT FINDINGS Preliminary evidence suggests that minerals might have beneficial effects on ADHD symptomatology. Probiotics might offer novel strategies to prevent or treat ADHD. Inverse associations between adherence to "healthy" diets and ADHD symptoms have been observed. Children with ADHD responding to the few-foods diet (or oligoantigenic diet) with an elimination of individually identified food items show substantially improved behavior and cognitive functioning. Evidence from recent research does not allow any recommendations regarding the use of micronutrients or probiotics in the management of ADHD. The few-foods diet may become an additional therapeutic option for children with ADHD.
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Affiliation(s)
- Klaus W. Lange
- Faculty of Human Sciences, University of Regensburg, 93040 Regensburg, Bavaria, Germany
| | | | - Yukiko Nakamura
- Faculty of Human Sciences, University of Regensburg, 93040 Regensburg, Bavaria, Germany
| | - Andreas Reissmann
- Faculty of Human Sciences, University of Regensburg, 93040 Regensburg, Bavaria, Germany
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Ruf A, Neubauer AB, Koch ED, Ebner-Priemer U, Reif A, Matura S. Microtemporal Dynamics of Dietary Intake, Physical Activity, and Impulsivity in Adult Attention-Deficit/Hyperactivity Disorder: Ecological Momentary Assessment Study Within Nutritional Psychiatry. JMIR Ment Health 2023; 10:e46550. [PMID: 37590053 PMCID: PMC10472180 DOI: 10.2196/46550] [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: 02/17/2023] [Revised: 05/24/2023] [Accepted: 06/17/2023] [Indexed: 08/18/2023] Open
Abstract
BACKGROUND Increasing attention is being paid to lifestyle factors, such as nutrition and physical activity (PA), as potential complementary treatment options in attention-deficit/hyperactivity disorder (ADHD). Previous research indicates that sugar and saturated fat intake may be linked to increased impulsivity, a core symptom of ADHD, whereas protein intake and PA may be related to reduced impulsivity. However, most studies rely on cross-sectional data that lack microtemporal resolution and ecological validity, wherefore questions of microtemporal dynamics (eg, is the consumption of foods high in sugar associated with increased impulsivity within minutes or hours?) remain largely unanswered. Ecological momentary assessment (EMA) has the potential to bridge this gap. OBJECTIVE This study is the first to apply EMA to assess microtemporal associations among macronutrient intake, PA, and state impulsivity in the daily life of adults with and without ADHD. METHODS Over a 3-day period, participants reported state impulsivity 8 times per day (signal-contingent), recorded food and drink intake (event-contingent), and wore an accelerometer. Multilevel 2-part models were used to study the association among macronutrient intake, PA, and the probability to be impulsive as well as the intensity of impulsivity (ADHD: n=36; control: n=137). RESULTS No association between macronutrient intake and state impulsivity was found. PA was not related to the intensity of impulsivity but to a higher probability to be impulsive (ADHD: β=-.09, 95% CI -0.14 to -0.04; control: β=-.03, 95% CI -0.05 to -0.01). No evidence was found that the combined intake of saturated fat and sugar amplified the increase in state impulsivity and that PA alleviated the positive association between sugar or fat intake and state impulsivity. CONCLUSIONS Important methodological considerations are discussed that can contribute to the optimization of future EMA protocols. EMA research in the emerging field of nutritional psychiatry is still in its infancy; however, EMA is a highly promising and innovative approach as it offers insights into the microtemporal dynamics of psychiatric symptomology, dietary intake, and PA in daily life.
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Affiliation(s)
- Alea Ruf
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital, Goethe University, Frankfurt, Germany
| | - Andreas B Neubauer
- DIPF | Leibniz Institute for Research and Information in Education, Frankfurt, Germany
- Center for Research on Individual Development and Adaptive Education of Children at Risk (IDeA), Frankfurt, Germany
| | - Elena D Koch
- Mental mHealth Lab, Institute of Sports and Sports Science, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Ulrich Ebner-Priemer
- Mental mHealth Lab, Institute of Sports and Sports Science, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Andreas Reif
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital, Goethe University, Frankfurt, Germany
| | - Silke Matura
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital, Goethe University, Frankfurt, Germany
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Pagán AF, Huizar YP, Short TR, Gotcher Z, Schmidt AT. Adult Attention-Deficit/Hyperactivity Disorder: a Narrative Review of Biological Mechanisms, Treatments, and Outcomes. Curr Neurol Neurosci Rep 2023:10.1007/s11910-023-01280-4. [PMID: 37335460 DOI: 10.1007/s11910-023-01280-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/01/2023] [Indexed: 06/21/2023]
Abstract
PURPOSE OF REVIEW Attention-deficit/hyperactivity disorder (ADHD) is a heterogeneous and complex neurodevelopmental disorder related to disruptions in various neuronal structures and pathways, dopamine (DA) transporter, and receptor genes, resulting in cognitive and regulation deficits. This article reviews recent research on the biological mechanisms and markers, clinical manifestations, treatments, and outcomes of adult ADHD as well as current controversies within the field. RECENT FINDINGS New research identifies white matter disruptions in multiple cortical pathways in adults with ADHD. New treatments for ADHD in adults such as viloxazine ER have shown preliminary effectiveness in addition to research showing transcranial direct current stimulation can be an effective treatment for adults with ADHD. Although questions exist about the effectiveness of current assessments of and treatments for adult ADHD, recent findings represent a step towards improving the quality of life and outcomes for individuals experiencing this life-long, chronic health condition.
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Affiliation(s)
- Antonio F Pagán
- Department of Psychological Sciences, Texas Tech University, Psychological Sciences Building, 2700 18th St, Lubbock, TX, 79410, USA.
| | - Yazmine P Huizar
- Department of Psychological Sciences, Texas Tech University, Psychological Sciences Building, 2700 18th St, Lubbock, TX, 79410, USA
| | - Tucker R Short
- Department of Psychological Sciences, Texas Tech University, Psychological Sciences Building, 2700 18th St, Lubbock, TX, 79410, USA
| | - Zoe Gotcher
- Department of Psychological Sciences, Texas Tech University, Psychological Sciences Building, 2700 18th St, Lubbock, TX, 79410, USA
| | - Adam T Schmidt
- Department of Psychological Sciences, Texas Tech University, Psychological Sciences Building, 2700 18th St, Lubbock, TX, 79410, USA
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Long-Term Effects of an Oligoantigenic Diet in Children with Attention-Deficit/Hyperactivity Disorder (ADHD) on Core Symptomatology. Nutrients 2022; 14:nu14235111. [PMID: 36501141 PMCID: PMC9737158 DOI: 10.3390/nu14235111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/24/2022] [Accepted: 11/26/2022] [Indexed: 12/03/2022] Open
Abstract
In the early 1920s, it was discovered that nutrition is associated with what is known today as Attention-Deficit/Hyperactivity Disorder (ADHD) and that certain foods can worsen the symptoms. In previous studies, approximately 60% of the participants experience at least a 40% reduction in ADHD symptoms after an oligoantigenic diet (OD). The purpose of this study was to evaluate ADHD symptoms in children approximately 3.5 years after completing a 4-week oligoantigenic diet. Among 28 participants who completed the 4-week diet, 21 were re-assessed for this study after 3.5 years. The severity of ADHD symptoms was assessed with the ADHD-Rating-Scale-IV (ARS). Of 21 participants, 14 fulfilled the responder criterion, whereas 7 did not. At follow-up, 28% of the participants were taking medication. The mean ARS total score improved significantly from T1: M = 29.62 (SD = 9.80) to T2: M = 15.86 (SD = 8.56) between the time points before and after the diet (d = -1.91). There was also a lower ARS total score at the follow-up T5: M = 16.00 (SD = 10.52) compared to before the diet (d = -1.17). This study shows that individually adjusted nutrition significantly improved the ADHD symptomatology of the participants long-term. This suggests that an oligoantigenic diet with subsequent individual nutritional recommendations could become an additional treatment option for children with ADHD.
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Pinto S, Correia-de-Sá T, Sampaio-Maia B, Vasconcelos C, Moreira P, Ferreira-Gomes J. Eating Patterns and Dietary Interventions in ADHD: A Narrative Review. Nutrients 2022; 14:nu14204332. [PMID: 36297016 PMCID: PMC9608000 DOI: 10.3390/nu14204332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 10/11/2022] [Accepted: 10/12/2022] [Indexed: 11/06/2022] Open
Abstract
Attention Deficit Hyperactivity Disorder (ADHD) is one of the most common neurodevelopmental disorders in childhood, affecting ~7% of children and adolescents. Given its adverse health outcomes and high healthcare and societal costs, other treatment options beyond pharmacotherapy have been explored. Case-control studies have shown that dietary patterns may influence the risk of ADHD, and specific dietary interventions have been proposed as coadjuvant treatments in this disorder. These include nutritional supplements, gut microbiome-targeted interventions with biotics, and elimination diets. The purpose of this review is to examine which dietary patterns are most associated with ADHD and to summarize the existing evidence for the clinical use of dietary interventions. The literature showed that non-healthy dietary patterns were positively associated with ADHD, whereas healthy patterns were negatively associated. As for nutritional supplements, only vitamin D and vitamin D + magnesium appeared to improve ADHD symptoms when baseline levels of vitamin D were insufficient/deficient. Regarding biotics, evidence was only found for Lactobacillus rhamnosus GG and for multi-species probiotic supplementation. Elimination diets have scarce evidence and lead to nutritional deficiencies, so caution is advised. Overall, more robust scientific evidence is required for these dietary interventions to be implemented as part of ADHD therapy.
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Affiliation(s)
- Sofia Pinto
- Faculty of Nutrition and Food Sciences, University of Porto, 4150-180 Porto, Portugal
| | - Teresa Correia-de-Sá
- Department of Biomedicine, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
- INEB—Institute of Biomedical Engineering, University of Porto, 4200-135 Porto, Portugal
- i3S—Institute for Research & Innovation in Health, University of Porto, 4200-135 Porto, Portugal
| | - Benedita Sampaio-Maia
- INEB—Institute of Biomedical Engineering, University of Porto, 4200-135 Porto, Portugal
- i3S—Institute for Research & Innovation in Health, University of Porto, 4200-135 Porto, Portugal
- Faculty of Dental Medicine, University of Porto, 4200-393 Porto, Portugal
| | - Carla Vasconcelos
- Faculty of Nutrition and Food Sciences, University of Porto, 4150-180 Porto, Portugal
- Nutrition Service, University Hospital Center of São João, 4200-319 Porto, Portugal
| | - Pedro Moreira
- Faculty of Nutrition and Food Sciences, University of Porto, 4150-180 Porto, Portugal
- EPIUnit, Institute of Public Health, University of Porto, 4200-450 Porto, Portugal
- Correspondence: ; Tel.: +351-225-074-320
| | - Joana Ferreira-Gomes
- Department of Biomedicine, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
- i3S—Institute for Research & Innovation in Health, University of Porto, 4200-135 Porto, Portugal
- IBMC—Institute for Molecular and Cell Biology, University of Porto, 4200-135 Porto, Portugal
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