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Siedler MR, Rodriguez C, White SJ, Tinoco E, DeHaven B, Brojanac A, LaValle C, Rasco J, Taylor LW, Tinsley GM. Chronic Thermogenic Dietary Supplement Consumption: Effects on Body Composition, Anthropometrics, and Metabolism. Nutrients 2023; 15:4806. [PMID: 38004200 PMCID: PMC10674526 DOI: 10.3390/nu15224806] [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: 10/17/2023] [Revised: 11/07/2023] [Accepted: 11/14/2023] [Indexed: 11/26/2023] Open
Abstract
Multi-ingredient thermogenic supplements can acutely increase resting energy expenditure (REE) and subjective energy. However, less is understood about the effects of chronic consumption on body composition, metabolism, and subjective variables such as mood, sleep quality, and eating behaviors. Fifty-two healthy, exercise-trained participants (50% female; mean ± SD age: 23.5 ± 3.0 years; body fat percentage: 27.3 ± 8.0%) were randomized 2:2:1 to take a whey protein supplement alone (PRO; n = 20), in combination with a thermogenic supplement (PRO + FB; n = 19), or no supplement at all (CON; n = 13) for four weeks. Body composition, anthropometric, metabolic, hemodynamic, and subjective outcomes were collected before and after the intervention. Greater changes in REE occurred in PRO + FB as compared to CON (111.2 kcal/d, 95% CI 2.4 to 219.9 kcal/d, p = 0.04), without significant differences between PRO and CON (42.7 kcal/d, 95% CI -65.0 to 150.3 kcal/d, p = 0.61) or between PRO + FB and PRO (68.5 kcal/d, 95% CI -28.3, 165.3, p = 0.21). No changes in hemodynamic outcomes (blood pressure and heart rate) were observed. In exercising adults, four weeks of supplementation with protein and a multi-ingredient thermogenic product maintained fasted REE as compared to no supplementation, for which a decrease in REE was observed, without differential effects on body composition, anthropometrics, or subjective variables.
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Affiliation(s)
- Madelin R. Siedler
- Energy Balance & Body Composition Laboratory, Department of Kinesiology & Sport Management, Texas Tech University, Lubbock, TX 79409, USA; (M.R.S.); (C.R.); (S.J.W.); (E.T.); (B.D.); (A.B.); (C.L.); (J.R.)
| | - Christian Rodriguez
- Energy Balance & Body Composition Laboratory, Department of Kinesiology & Sport Management, Texas Tech University, Lubbock, TX 79409, USA; (M.R.S.); (C.R.); (S.J.W.); (E.T.); (B.D.); (A.B.); (C.L.); (J.R.)
| | - Sarah J. White
- Energy Balance & Body Composition Laboratory, Department of Kinesiology & Sport Management, Texas Tech University, Lubbock, TX 79409, USA; (M.R.S.); (C.R.); (S.J.W.); (E.T.); (B.D.); (A.B.); (C.L.); (J.R.)
| | - Ethan Tinoco
- Energy Balance & Body Composition Laboratory, Department of Kinesiology & Sport Management, Texas Tech University, Lubbock, TX 79409, USA; (M.R.S.); (C.R.); (S.J.W.); (E.T.); (B.D.); (A.B.); (C.L.); (J.R.)
| | - Brielle DeHaven
- Energy Balance & Body Composition Laboratory, Department of Kinesiology & Sport Management, Texas Tech University, Lubbock, TX 79409, USA; (M.R.S.); (C.R.); (S.J.W.); (E.T.); (B.D.); (A.B.); (C.L.); (J.R.)
| | - Alexandra Brojanac
- Energy Balance & Body Composition Laboratory, Department of Kinesiology & Sport Management, Texas Tech University, Lubbock, TX 79409, USA; (M.R.S.); (C.R.); (S.J.W.); (E.T.); (B.D.); (A.B.); (C.L.); (J.R.)
| | - Christian LaValle
- Energy Balance & Body Composition Laboratory, Department of Kinesiology & Sport Management, Texas Tech University, Lubbock, TX 79409, USA; (M.R.S.); (C.R.); (S.J.W.); (E.T.); (B.D.); (A.B.); (C.L.); (J.R.)
| | - Jaylynn Rasco
- Energy Balance & Body Composition Laboratory, Department of Kinesiology & Sport Management, Texas Tech University, Lubbock, TX 79409, USA; (M.R.S.); (C.R.); (S.J.W.); (E.T.); (B.D.); (A.B.); (C.L.); (J.R.)
| | - Lem W. Taylor
- Human Performance Laboratory, School of Exercise and Sport Science, University of Mary Hardin-Baylor, Belton, TX 76513, USA;
| | - Grant M. Tinsley
- Energy Balance & Body Composition Laboratory, Department of Kinesiology & Sport Management, Texas Tech University, Lubbock, TX 79409, USA; (M.R.S.); (C.R.); (S.J.W.); (E.T.); (B.D.); (A.B.); (C.L.); (J.R.)
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Carrão Dantas EK, Araújo-Lima CF, Ferreira CLS, Goldstein ADC, Aiub CAF, Coelho MGP, Felzenszwalb I. Toxicogenetic assessment of a pre-workout supplement: In vitro mutagenicity, cytotoxicity, genotoxicity and glutathione determination in liver cell lines and in silico ADMET approaches. MUTATION RESEARCH. GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2022; 879-880:503517. [PMID: 35914863 DOI: 10.1016/j.mrgentox.2022.503517] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 05/05/2022] [Accepted: 06/15/2022] [Indexed: 06/15/2023]
Abstract
The benefits of practicing physical activity, such as weight loss and control, are commonly associated with caloric restriction diets and may be improved by the ingestion of thermogenic and ergogenic supplements. However, there is a lack of safety data on commonly marketed nutritional supplements. Therefore, this investigation aims to evaluate a pre-workout supplement for mutagenicity using the Ames test, hepatocytoxicity in HepG2 and F C3H cells after 24 h, 48 h and 72 h, genotoxicity using the CBMN assay, determination of gluthatione activity and computational prediction of the three major isolated compounds present in the supplement. The mutagenicity test showed a mutagenic response in TA98 His+ revertants of 5 mg/plate in the presence of metabolic activation, cytotoxicity in TA98 of 5 mg/plate in the absence of metabolic conditions, and in TA102 of 0.5 mg/plate both in the presence and absence of metabolic activation. In our in vitro eukaryotic cell viability, WST-1, LDH and alkaline phosphatase assays, the supplement showed hepatocytotoxicity both dose-dependently and time-dependently. In the cytokinesis blocking micronuclei assay, the supplement induced micronuclei, nuclear buds, nucleoplasmatic, bridge formation, and a decreased in nuclear division. In addition, the supplement decreased intra and extracellular GSH. Computational analysis showed that the three isolated compounds most present in the supplement have the potential to cause hepatotoxicity. In the present investigation, the pre-workout supplement induced mutagenic, genotoxic, and cytotoxic responses and GSH decrease. Thus, considering food safety and public health sanitary vigilance, the consumption of this pre-workout supplement may harm the health of its consumers.
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Affiliation(s)
- Eduardo Kennedy Carrão Dantas
- Laboratory of Environmental Mutagenicity, Department of Biophysics and Biometry, Rio de Janeiro State University, UERJ, Rio de Janeiro, Brazil; Department of Genetics and Molecular Biology, Federal University of Rio de Janeiro State, UNIRIO, Rio de Janeiro, Brazil.
| | - Carlos Fernando Araújo-Lima
- Laboratory of Environmental Mutagenicity, Department of Biophysics and Biometry, Rio de Janeiro State University, UERJ, Rio de Janeiro, Brazil; Department of Genetics and Molecular Biology, Federal University of Rio de Janeiro State, UNIRIO, Rio de Janeiro, Brazil.
| | - Caroline Lopes Simões Ferreira
- Laboratory of Environmental Mutagenicity, Department of Biophysics and Biometry, Rio de Janeiro State University, UERJ, Rio de Janeiro, Brazil; Department of Genetics and Molecular Biology, Federal University of Rio de Janeiro State, UNIRIO, Rio de Janeiro, Brazil.
| | - Alana da Cunha Goldstein
- Laboratory of Environmental Mutagenicity, Department of Biophysics and Biometry, Rio de Janeiro State University, UERJ, Rio de Janeiro, Brazil; Department of Genetics and Molecular Biology, Federal University of Rio de Janeiro State, UNIRIO, Rio de Janeiro, Brazil.
| | - Cláudia Alessandra Fortes Aiub
- Department of Genetics and Molecular Biology, Federal University of Rio de Janeiro State, UNIRIO, Rio de Janeiro, Brazil.
| | | | - Israel Felzenszwalb
- Laboratory of Environmental Mutagenicity, Department of Biophysics and Biometry, Rio de Janeiro State University, UERJ, Rio de Janeiro, Brazil.
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Ferreira GDSA, Watanabe ALC, Trevizoli NDC, Jorge FMF, Diaz LGG, Couto CDF, Lima LVD, Raupp DRL, Araujo BED. Acute Liver Failure Caused by Use of Fat Burner: A Case Report. Transplant Proc 2020; 52:1409-1412. [PMID: 32192741 DOI: 10.1016/j.transproceed.2020.01.072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 01/10/2020] [Indexed: 02/07/2023]
Abstract
Acute liver failure is a rare condition consisting of abrupt and extensive hepatocyte injury, leading to significant liver dysfunction associated with a high mortality. Liver transplantation is the most effective treatment in severe cases. The most common cause of acute liver failure in Western countries is drug-induced liver injury caused by prescription drugs and herbal and dietary supplements. Thermogenics, or fat burners, are a category of dietary supplements that claim to increase the resting metabolic rate, leading to weight loss. There are previous reports of acute liver failure associated with specific thermogenic formulations. We report the case of a 36-year-old male patient who developed jaundice 7 days after he started taking a thermogenic dietary supplement (Thermo Gun), with progressive deterioration of hepatic function and development of hepatic encephalopathy 19 days after the beginning of the symptoms. He had a Model for End-Stage Liver Disease score of 38 and fulfilled 4 of the King's College Criteria for poor prognosis in patients with acute liver failure. He underwent liver transplantation, receiving a graft from a cadaveric donor, and is alive with good liver graft function 2 years after the transplant. No possible causes for acute liver injury were identified other than the use of the supplement, which contained N-acetyl-L-tyrosine; 1,3,7-trimenthylxanthine; white willow; and 1-hydroxypholedrine. We found no previous reports in the literature of acute liver failure associated with those particular substances. This manuscript is compliant with the Helsinki Congress and the Istanbul Declaration.
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Ribeiro DL, Machado ART, da Silva Machado C, Santos PWDS, Aissa AF, Barcelos GRM, Antunes LMG. Analysis of the cytotoxic, genotoxic, mutagenic, and pro-oxidant effect of synephrine, a component of thermogenic supplements, in human hepatic cells in vitro. Toxicology 2019; 422:25-34. [PMID: 31004705 DOI: 10.1016/j.tox.2019.04.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 04/09/2019] [Accepted: 04/16/2019] [Indexed: 12/11/2022]
Abstract
Thermogenic supplements containing synephrine (SN) are widely used to weight loss. SN is a proto-alkaloid naturally found in the bark of immature fruits of Citrus aurantium (bitter orange) that has been added to thermogenic supplements due to its chemical and pharmacological similarity with adrenergic amines, such as ephedrine and amphetamines. Although orally ingested SN is mainly metabolized in the liver, it remains unclear whether it affects the redox status and genetic material of human hepatic cells. The present study aims to examine whether SN affects cell viability, cell cycle, redox balance, genomic stability, and expression of the DNA damage response (DDR)-related genes ATM, ATR, CHEK1, CHECK2, TP53, and SIRT1 in HepG2 cells - used as in vitro hepatocyte model. SN induced overproduction of intracellular reactive oxygen species (ROS) after 6 h of treatment with the three concentrations tested (2, 20 and 200 μM). After 24 h of treatment, SN at 200 μM induced intracellular ROS overproduction and exerted cytostatic effects, while SN at 20 and 200 μM increased the levels of GPx and GSH. SN was not cytotoxic (2-5000 μM), genotoxic, and mutagenic and did not alter the expression of DDR-related genes (2-200 μM), indicating that the fast/specific SN metabolization and upregulation of antioxidant defense components to detoxify intracellular ROS were sufficient to prevent intracellular damage in HepG2 cells. In conclusion, SN showed no cytotoxic, genotoxic, and mutagenic potential at relevant concentrations for thermogenic users in human hepatic cells in vitro, although, it plays pro-oxidative action, and cytostatic effects. Taken together, our results suggest that other investigations about the hazard absence of this thermogenic compound should be performed.
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Affiliation(s)
- Diego Luís Ribeiro
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Avenida dos Bandeirantes, 3900, 14040-901, Ribeirão Preto, São Paulo, Brazil
| | - Ana Rita Thomazela Machado
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café, s/n°, 14040-903, Ribeirão Preto, São Paulo, Brazil
| | - Carla da Silva Machado
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Avenida dos Bandeirantes, 3900, 14040-901, Ribeirão Preto, São Paulo, Brazil
| | - Patrick Wellington da Silva Santos
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café, s/n°, 14040-903, Ribeirão Preto, São Paulo, Brazil
| | - Alexandre Ferro Aissa
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café, s/n°, 14040-903, Ribeirão Preto, São Paulo, Brazil
| | - Gustavo Rafael Mazzaron Barcelos
- Department of Biosciences, Institute of Health and Society, Federal University of São Paulo, Rua Silva Jardim, 136, 11015-020, Santos, São Paulo, Brazil
| | - Lusânia Maria Greggi Antunes
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café, s/n°, 14040-903, Ribeirão Preto, São Paulo, Brazil.
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