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Vuppalanchi R, Bonkovsky HL, Ahmad J, Barnhart H, Durazo F, Fontana RJ, Gu J, Khan I, Kleiner DE, Koh C, Rockey DC, Phillips EJ, Li YJ, Serrano J, Stolz A, Tillmann HL, Seeff LB, Hoofnagle JH, Navarro VJ. Garcinia cambogia, Either Alone or in Combination With Green Tea, Causes Moderate to Severe Liver Injury. Clin Gastroenterol Hepatol 2022; 20:e1416-e1425. [PMID: 34400337 PMCID: PMC9004424 DOI: 10.1016/j.cgh.2021.08.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 08/05/2021] [Accepted: 08/09/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Garcinia cambogia, either alone or with green tea, is commonly promoted for weight loss. Sporadic cases of liver failure from G cambogia have been reported, but its role in liver injury is controversial. METHODS Among 1418 patients enrolled in the Drug-Induced Liver Injury Network (DILIN) from 2004 to 2018, we identified 22 cases (adjudicated with high confidence) of liver injury from G cambogia either alone (n = 5) or in combination with green tea (n = 16) or Ashwagandha (n = 1). Control groups consisted of 57 patients with liver injury from herbal and dietary supplements (HDS) containing green tea without G cambogia and 103 patients from other HDS. RESULTS Patients who took G cambogia were between 17 and 54 years, with liver injury arising 13-223 days (median = 51) after the start. One patient died, one required liver transplantation, and 91% were hospitalized. The liver injury was hepatocellular with jaundice. Although the peak values of aminotransferases were significantly higher (2001 ± 1386 U/L) in G cambogia group (P < .018), the median time for improvement in total bilirubin was significantly lower compared with the control groups (10 vs 17 and 13 days; P = .03). The presence of HLA-B∗35:01 allele was significantly higher in the G cambogia containing HDS (55%) compared with patients because of other HDS (19%) (P = .002) and those with acute liver injury from conventional drugs (12%) (P = 2.55 × 10-6). CONCLUSIONS The liver injury caused by G cambogia and green tea is clinically indistinguishable. The possible association with HLA-B∗35:01 allele suggests an immune-mediated mechanism of injury. CLINICAL TRIALS gov number: NCT00345930.
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Affiliation(s)
- Raj Vuppalanchi
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | | | - Jawad Ahmad
- Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Huiman Barnhart
- Duke Clinical Research Institute, Duke University, Durham, NC (Y-J. L., HB, JG)
| | - Francisco Durazo
- University of California Los Angeles Medical School, Los Angeles, CA
| | - Robert J. Fontana
- Department of Medicine, University of Michigan School of Medicine, Ann Arbor, MI
| | - Jiezhun Gu
- Duke Clinical Research Institute, Duke University, Durham, NC (Y-J. L., HB, JG)
| | - Ikhlas Khan
- National Center for Natural Products Research, University of Mississippi, University, Mississippi
| | - David E. Kleiner
- Liver Disease Research Branch, Division of Digestive Diseases and Nutrition (JHH, JS), and the Liver Diseases Branch (CK), National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), and the Laboratory of Pathology (DEK), National Cancer Institute, National Institutes of Health (NIH), Bethesda, MD
| | - Christopher Koh
- Liver Disease Research Branch, Division of Digestive Diseases and Nutrition (JHH, JS), and the Liver Diseases Branch (CK), National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), and the Laboratory of Pathology (DEK), National Cancer Institute, National Institutes of Health (NIH), Bethesda, MD
| | - Don C. Rockey
- Department of Medicine, Medical University of South Carolina, Charleston, SC
| | | | - Yi-Ju Li
- Duke Clinical Research Institute, Duke University, Durham, NC (Y-J. L., HB, JG)
| | - Jose Serrano
- Liver Disease Research Branch, Division of Digestive Diseases and Nutrition (JHH, JS), and the Liver Diseases Branch (CK), National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), and the Laboratory of Pathology (DEK), National Cancer Institute, National Institutes of Health (NIH), Bethesda, MD
| | - Andrew Stolz
- Department of Medicine, University of Southern California School of Medicine, Los Angeles, CA
| | | | - Leonard B. Seeff
- Department of Medicine, Einstein Healthcare Network, Philadelphia, PA
| | - Jay H. Hoofnagle
- Liver Disease Research Branch, Division of Digestive Diseases and Nutrition (JHH, JS), and the Liver Diseases Branch (CK), National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), and the Laboratory of Pathology (DEK), National Cancer Institute, National Institutes of Health (NIH), Bethesda, MD
| | - Victor J. Navarro
- Department of Medicine, Einstein Healthcare Network, Philadelphia, PA
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Mutlu E, Pierfelice J, Cao Y, Djonabaye A, Gleason S, Burback B, Waidyanatha S. Development and Validation of an Analytical Method to Quantitate Hydroxycitric Acid, the Key Constituent in Garcinia cambogia Extract, in Rodent Plasma and Fetus. ANAL LETT 2021; 55:1382-1397. [DOI: 10.1080/00032719.2021.2005618] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Esra Mutlu
- Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | | | - Yu Cao
- Battelle Memorial Institute, Columbus, OH, USA
| | | | | | | | - Suramya Waidyanatha
- Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
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3
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Batsis JA, Apolzan JW, Bagley PJ, Blunt HB, Divan V, Gill S, Golden A, Gundamraj S, Heymsfield S, Kahan S, Kopatsis K, Port A, Parks EP, Reilly CA, Rubino D, Saunders KH, Shean R, Tabaza L, Stanley A, Tchang BG, Gundumraj S, Kidambi S. A Systematic Review of Dietary Supplements and Alternative Therapies for Weight Loss. Obesity (Silver Spring) 2021; 29:1102-1113. [PMID: 34159755 PMCID: PMC8231729 DOI: 10.1002/oby.23110] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 12/06/2020] [Accepted: 12/08/2020] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Dietary supplements and alternative therapies are commercialized as a panacea for obesity/weight gain as a result of the minimal regulatory requirements in demonstrating efficacy. These products may indirectly undermine the value of guideline-driven obesity treatments. Included in this study is a systematic review of the literature of purported dietary supplements and alternative therapies for weight loss. METHODS A systematic review was conducted to evaluate the efficacy of dietary supplements and alternative therapies for weight loss in participants aged ≥18 years. Searches of Medline (PubMed), Cochrane Library, Web of Science, CINAHL, and Embase (Ovid) were conducted. Risk of bias and results were summarized qualitatively. RESULTS Of the 20,504 citations retrieved in the database search, 1,743 full-text articles were reviewed, 315 of which were randomized controlled trials evaluating the efficacy of 14 purported dietary supplements, therapies, or a combination thereof. Risk of bias and sufficiency of data varied widely. Few studies (n = 52 [16.5%]) were classified as low risk and sufficient to support efficacy. Of these, only 16 (31%) noted significant pre/post intergroup differences in weight (range: 0.3-4.93 kg). CONCLUSIONS Dietary supplements and alternative therapies for weight loss have a limited high-quality evidence base of efficacy. Practitioners and patients should be aware of the scientific evidence of claims before recommending use.
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Affiliation(s)
- John A. Batsis
- Division of Geriatric Medicine, School of Medicine, and the Department of Nutrition, The Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - John W. Apolzan
- Pennington Biomedical Research Center, Louisiana State University Sysytem, Baton Rouge, Louisiana
| | | | | | | | - Sonia Gill
- University of California, Davis School of Medicine, Sacramento, California
| | | | | | - Steven Heymsfield
- Pennington Biomedical Research Center, Louisiana State University Sysytem, Baton Rouge, Louisiana
| | - Scott Kahan
- Director, National Center for Weight and Wellness, George Washington University Milken Institute School of Public Health, Washington, DC
| | | | - Ava Port
- Division of Endocrinology, Diabetes and Nutrition, University of Maryland School of Medicine, Baltimore, MD
| | - Elizabeth Prout Parks
- The Children’s Hospital of Philadelphia, Division of Gastroenterology, Hepatology and Nutrition, The Healthy Weight Program, Perelman Medical Center, University of Pennsylvania
| | - Clifford A. Reilly
- The Robert Larner, M.D. College of Medicine at The University of Vermont, Burlington VT
| | - Domenica Rubino
- Washington Center for Weight Management and Research, Arlington, VA
| | - Katherine H. Saunders
- Comprehensive Weight Control Center, Division of Endocrinology, Diabetes, and Metabolism, Weill Cornell Medicine, New York, NY
| | - Ryan Shean
- Dartmouth College, Hanover, New Hampshire
| | - Luai Tabaza
- Albert Einstein Medical Center, Philadelphia, PA
| | - Abishek Stanley
- Pennington Biomedical Research Center, Louisiana State University Sysytem, Baton Rouge, Louisiana
| | - Beverly G. Tchang
- Comprehensive Weight Control Center, Division of Endocrinology, Diabetes, and Metabolism, Weill Cornell Medicine, New York, NY
| | - Shivani Gundumraj
- AT Still University School of Osteopathic Medicine in Arizona, Mesa, AZ
| | - Srividya Kidambi
- Division of Endocrinology and Molecular Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin
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Maia-Landim A, Lancho C, Poblador MS, Lancho JL, Ramírez JM. Garcinia cambogia and Glucomannan reduce weight, change body composition and ameliorate lipid and glucose blood profiles in overweight/obese patients. J Herb Med 2021. [DOI: 10.1016/j.hermed.2021.100424] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Andueza N, Giner RM, Portillo MP. Risks Associated with the Use of Garcinia as a Nutritional Complement to Lose Weight. Nutrients 2021; 13:450. [PMID: 33572973 PMCID: PMC7911601 DOI: 10.3390/nu13020450] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 01/23/2021] [Accepted: 01/24/2021] [Indexed: 02/06/2023] Open
Abstract
Nowadays, obesity is one of the great nutritional problems facing public health. The prevalence of this pathology has increased in a worrying way over recent years, currently reaching epidemic proportions. In this context, nutritional supplements are presented as a therapeutic alternative to which more and more people are turning to. Nutritional supplements to lose weight based on the Garcinia plant, specifically on Garcinia cambogia, are commonly used. The active principle of this plant to which these properties have been attributed, is hydroxycitric acid (HCA). The aim of the present review is to gather reported data concerning the effectiveness of nutritional supplements based on Garcinia extracts on weight loss and their possible negative effects. Contradictory results have been observed regarding the effectiveness of the supplements. While statistically significant weight loss was observed in some studies, no changes were found in others. Regarding safety, although Garcinia supplements have been revealed as safe in the vast majority of the studies carried out in animal models and humans, some cases of hepatotoxicity, serotonin toxicity and mania have been reported. In conclusion, the results suggest that Garcinia-based supplements could be effective in short-term weight loss, although the data are not conclusive. In addition, the safety of the complement should be further studied.
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Affiliation(s)
- Naroa Andueza
- Nutrition and Obesity Group, Department of Pharmacy and Food Science, Lucio Lascaray Research Institute, University of the Basque Country (UPV/EHU), 01006 Vitoria, Spain;
| | - Rosa M. Giner
- Department of Pharmacology, Faculty of Pharmacy, University of Valencia, 46100 Burjassot, Spain;
- Spanish Agency of Food Safety and Nutrition (AESAN), 28014 Madrid, Spain
| | - Maria P. Portillo
- Nutrition and Obesity Group, Department of Pharmacy and Food Science, Lucio Lascaray Research Institute, University of the Basque Country (UPV/EHU), 01006 Vitoria, Spain;
- Spanish Agency of Food Safety and Nutrition (AESAN), 28014 Madrid, Spain
- Bioaraba Health Research Institute, 01009 Vitoria, Spain
- CIBEROBN Physiopathology of Obesity and Nutrition, Institute of Health Carlos III, 01006 Vitoria, Spain
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Watanabe M, Risi R, Masi D, Caputi A, Balena A, Rossini G, Tuccinardi D, Mariani S, Basciani S, Manfrini S, Gnessi L, Lubrano C. Current Evidence to Propose Different Food Supplements for Weight Loss: A Comprehensive Review. Nutrients 2020; 12:E2873. [PMID: 32962190 PMCID: PMC7551574 DOI: 10.3390/nu12092873] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/14/2020] [Accepted: 09/18/2020] [Indexed: 02/06/2023] Open
Abstract
The use of food supplements for weight loss purposes has rapidly gained popularity as the prevalence of obesity increases. Navigating through the vast, often low quality, literature available is challenging, as is providing informed advice to those asking for it. Herein, we provide a comprehensive literature revision focusing on most currently marketed dietary supplements claimed to favor weight loss, classifying them by their purported mechanism of action. We conclude by proposing a combination of supplements most supported by current evidence, that leverages all mechanisms of action possibly leading to a synergistic effect and greater weight loss in the foreseen absence of adverse events. Further studies will be needed to confirm the weight loss and metabolic improvement that may be obtained through the use of the proposed combination.
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Affiliation(s)
- Mikiko Watanabe
- Department of Experimental Medicine, Section of Medical Pathophysiology, Food Science and Endocrinology, Sapienza University of Rome, 00161 Rome, Italy; (M.W.); (D.M.); (A.C.); (A.B.); (S.M.); (S.B.); (L.G.); (C.L.)
| | - Renata Risi
- Department of Experimental Medicine, Section of Medical Pathophysiology, Food Science and Endocrinology, Sapienza University of Rome, 00161 Rome, Italy; (M.W.); (D.M.); (A.C.); (A.B.); (S.M.); (S.B.); (L.G.); (C.L.)
| | - Davide Masi
- Department of Experimental Medicine, Section of Medical Pathophysiology, Food Science and Endocrinology, Sapienza University of Rome, 00161 Rome, Italy; (M.W.); (D.M.); (A.C.); (A.B.); (S.M.); (S.B.); (L.G.); (C.L.)
| | - Alessandra Caputi
- Department of Experimental Medicine, Section of Medical Pathophysiology, Food Science and Endocrinology, Sapienza University of Rome, 00161 Rome, Italy; (M.W.); (D.M.); (A.C.); (A.B.); (S.M.); (S.B.); (L.G.); (C.L.)
| | - Angela Balena
- Department of Experimental Medicine, Section of Medical Pathophysiology, Food Science and Endocrinology, Sapienza University of Rome, 00161 Rome, Italy; (M.W.); (D.M.); (A.C.); (A.B.); (S.M.); (S.B.); (L.G.); (C.L.)
| | - Giovanni Rossini
- Department of Endocrinology and Diabetes, University Campus Bio-Medico of Rome, 00128 Rome, Italy; (G.R.); (D.T.); (S.M.)
| | - Dario Tuccinardi
- Department of Endocrinology and Diabetes, University Campus Bio-Medico of Rome, 00128 Rome, Italy; (G.R.); (D.T.); (S.M.)
| | - Stefania Mariani
- Department of Experimental Medicine, Section of Medical Pathophysiology, Food Science and Endocrinology, Sapienza University of Rome, 00161 Rome, Italy; (M.W.); (D.M.); (A.C.); (A.B.); (S.M.); (S.B.); (L.G.); (C.L.)
| | - Sabrina Basciani
- Department of Experimental Medicine, Section of Medical Pathophysiology, Food Science and Endocrinology, Sapienza University of Rome, 00161 Rome, Italy; (M.W.); (D.M.); (A.C.); (A.B.); (S.M.); (S.B.); (L.G.); (C.L.)
| | - Silvia Manfrini
- Department of Endocrinology and Diabetes, University Campus Bio-Medico of Rome, 00128 Rome, Italy; (G.R.); (D.T.); (S.M.)
| | - Lucio Gnessi
- Department of Experimental Medicine, Section of Medical Pathophysiology, Food Science and Endocrinology, Sapienza University of Rome, 00161 Rome, Italy; (M.W.); (D.M.); (A.C.); (A.B.); (S.M.); (S.B.); (L.G.); (C.L.)
| | - Carla Lubrano
- Department of Experimental Medicine, Section of Medical Pathophysiology, Food Science and Endocrinology, Sapienza University of Rome, 00161 Rome, Italy; (M.W.); (D.M.); (A.C.); (A.B.); (S.M.); (S.B.); (L.G.); (C.L.)
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Zeinali Khosroshahi M, Asbaghi O, Moradi S, Rezaei kelishadi M, Kaviani M, Mardani M, Jalili C. The effects of supplementation with L-arginine on anthropometric indices and body composition in overweight or obese subjects: A systematic review and meta-analysis. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.104022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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Golzarand M, Omidian M, Toolabi K. Effect of Garcinia cambogia supplement on obesity indices: A systematic review and dose-response meta-analysis. Complement Ther Med 2020; 52:102451. [DOI: 10.1016/j.ctim.2020.102451] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 04/29/2020] [Accepted: 05/19/2020] [Indexed: 02/06/2023] Open
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Bergamin A, Mantzioris E, Cross G, Deo P, Garg S, Hill AM. Nutraceuticals: Reviewing their Role in Chronic Disease Prevention and Management. Pharmaceut Med 2020; 33:291-309. [PMID: 31933188 DOI: 10.1007/s40290-019-00289-w] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Over half the adult population in many Western countries consume nutraceuticals because of their purported therapeutic benefits, accessibility and convenience. Several studies have demonstrated that they may also serve as a useful adjunct to pharmaceuticals to better manage chronic conditions or offset negative side effects. Individuals are advised to consult their physician before using nutraceuticals, but this advice is often overlooked. Thus, the community pharmacist plays an increasingly important role in assisting consumers with selecting a nutraceutical that is safe and for which there is evidence of therapeutic efficacy. Therefore, the aim of this review is to summarise the clinical evidence, safety and purported mechanisms of action for selected nutraceuticals in the management of chronic diseases, including obesity, diabetes, hypertension, hypercholesterolemia and inflammatory-based diseases.
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Affiliation(s)
- Amanda Bergamin
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia
| | - Evangeline Mantzioris
- School of Pharmacy and Medical Sciences, Alliance for Research in Exercise, Nutrition and Activity (ARENA), University of South Australia, Adelaide, Australia
| | - Giordana Cross
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia
| | - Permal Deo
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia
| | - Sanjay Garg
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia
| | - Alison M Hill
- School of Pharmacy and Medical Sciences, Alliance for Research in Exercise, Nutrition and Activity (ARENA), University of South Australia, Adelaide, Australia.
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10
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Maunder A, Bessell E, Lauche R, Adams J, Sainsbury A, Fuller NR. Effectiveness of herbal medicines for weight loss: A systematic review and meta-analysis of randomized controlled trials. Diabetes Obes Metab 2020; 22:891-903. [PMID: 31984610 DOI: 10.1111/dom.13973] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 01/13/2020] [Accepted: 01/19/2020] [Indexed: 01/09/2023]
Abstract
AIM To update the available evidence on the efficacy and safety of complementary medicines to assist in weight loss by conducting a systematic review and meta-analysis of herbal medicines for weight loss. METHODS Four electronic databases (Medline, Embase, CINAHL and Web of Science) were searched from inception until August 2018. A total of 54 randomized placebo-controlled trials of healthy overweight or obese adults were identified. Meta-analyses were conducted for herbal medicines with ≥4 studies available. Weight differences of ≥2.5 kg were considered clinically significant. RESULTS As a single agent, only Phaseolus vulgaris resulted in a statistically significant weight loss compared to placebo, although this was not considered clinically significant. No effect was seen for Camellia sinensis or Garcinia cambogia. Statistically, but not clinically, significant differences were observed for combination preparations containing C. sinensis, P. vulgaris or Ephedra sinica. Of the herbal medicines trialled in ≤3 randomized controlled trials, statistically and clinically significant weight loss compared to placebo was reported for Irvingia gabonensis, Cissus quadrangularis, and Sphaeranthus indicus combined with Garcinia mangostana, among others, but these findings should be interpreted cautiously because of the small number of studies, generally poor methodological quality, and poor reporting of the herbal medicine interventions. Most herbal medicines appeared safe for consumption over the short duration of the studies (commonly ≤12 weeks). Some warrant further investigation to determine effect size, dosage and long-term safety. CONCLUSION There is currently insufficient evidence to recommend any of the herbal medicines for weight loss included in the present review.
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Affiliation(s)
- Alison Maunder
- University of Sydney, Boden Collaboration for Obesity, Nutrition, Exercise and Eating Disorders, Central Clinical School, Charles Perkins Centre, New South Wales, Australia
| | - Erica Bessell
- University of Sydney, Boden Collaboration for Obesity, Nutrition, Exercise and Eating Disorders, Central Clinical School, Charles Perkins Centre, New South Wales, Australia
| | - Romy Lauche
- University of Technology Sydney, Australian Research Centre in Complementary and Integrative Medicine (ARCCIM), NSW, Australia
- Department of Internal and Integrative Medicine, Sozialstiftung Bamberg, Germany
| | - Jon Adams
- University of Technology Sydney, Australian Research Centre in Complementary and Integrative Medicine (ARCCIM), NSW, Australia
| | - Amanda Sainsbury
- University of Sydney, Boden Collaboration for Obesity, Nutrition, Exercise and Eating Disorders, Central Clinical School, Charles Perkins Centre, New South Wales, Australia
| | - Nicholas R Fuller
- University of Sydney, Boden Collaboration for Obesity, Nutrition, Exercise and Eating Disorders, Central Clinical School, Charles Perkins Centre, New South Wales, Australia
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Payab M, Hasani-Ranjbar S, Shahbal N, Qorbani M, Aletaha A, Haghi-Aminjan H, Soltani A, Khatami F, Nikfar S, Hassani S, Abdollahi M, Larijani B. Effect of the herbal medicines in obesity and metabolic syndrome: A systematic review and meta-analysis of clinical trials. Phytother Res 2019; 34:526-545. [PMID: 31793087 DOI: 10.1002/ptr.6547] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 09/18/2019] [Accepted: 10/24/2019] [Indexed: 12/12/2022]
Abstract
Obesity is a medical situation in which excess body fat has gathered because of imbalance between energy intake and energy expenditure. In spite of the fact that the variety of studies are available for obesity treatment and management, its "globesity" still remains a big challenge all over the world. The current systematic review and meta-analysis aimed to evaluate the efficacy, safety, and mechanisms of effective herbal medicines in the management and treatment of obesity and metabolic syndrome in human. We systematically searched all relevant clinical trials via Web of Science, Scopus, PubMed, and the Cochrane database to assess the effects of raw or refined products derived from plants or parts of plants on obesity and metabolic syndrome in overweight and obesity adult subjects. All studies conducted by the end of May 2019 were considered in the systematic review. Data were extracted independently by two experts. The quality assessment was assessed using Consolidated Standards of Reporting Trials checklist. The main outcomes were anthropometric indices and metabolic syndrome components. Pooled effect of herbal medicines on obesity and metabolic syndrome were presented as standardized mean difference (SMD) and 95% confidence interval (CI). A total of 279 relevant clinical trials were included. Herbals containing green tea, Phaseolus vulgaris, Garcinia cambogia, Nigella sativa, puerh tea, Irvingia gabonensis, and Caralluma fimbriata and their active ingredients were found to be effective in the management of obesity and metabolic syndrome. In addition, C. fimbriata, flaxseed, spinach, and fenugreek were able to reduce appetite. Meta-analysis showed that intake of green tea resulted in a significant improvement in weight ([SMD]: -0.75 [-1.18, -0.319]), body mass index ([SMD]: -1.2 [-1.82, -0.57]), waist circumference ([SMD]: -1.71 [-2.66, -0.77]), hip circumference ([SMD]: -0.42 [-1.02, -0.19]), and total cholesterol, ([SMD]: -0.43 [-0.77, -0.09]). In addition, the intake of P. vulgaris and N. sativa resulted in a significant improvement in weight ([SMD]: -0.88, 95 % CI: [-1.13, -0.63]) and triglyceride ([SMD]: -1.67, 95 % CI: [-2.54, -0.79]), respectively. High quality trials are still needed to firmly establish the clinical efficacy of the plants in obesity and metabolic syndrome.
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Affiliation(s)
- Moloud Payab
- Obesity and Eating Habits Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Shirin Hasani-Ranjbar
- Obesity and Eating Habits Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Nazila Shahbal
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mostafa Qorbani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.,Non-communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Azadeh Aletaha
- Evidence Based Medicine Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of medical Sciences, Tehran, Iran
| | - Hamed Haghi-Aminjan
- Pharmaceutical Science Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Akbar Soltani
- Evidence Based Medicine Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of medical Sciences, Tehran, Iran
| | - Fatemeh Khatami
- Chronic Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Shekoufeh Nikfar
- Department of Pharmacoeconomics and Pharmaceutical Administration, Faculty of Pharmacy, and Evidence-based Evaluation of Cost-Effectiveness and Clinical Outcomes Group, Pharmaceutical Science Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
| | - Shokoufeh Hassani
- Toxicology and Diseases Group (TDG), Pharmaceutical Science Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), and Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Abdollahi
- Toxicology and Diseases Group (TDG), Pharmaceutical Science Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), and Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
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Barrea L, Altieri B, Polese B, De Conno B, Muscogiuri G, Colao A, Savastano S. Nutritionist and obesity: brief overview on efficacy, safety, and drug interactions of the main weight-loss dietary supplements. INTERNATIONAL JOURNAL OF OBESITY SUPPLEMENTS 2019; 9:32-49. [PMID: 31391923 PMCID: PMC6683127 DOI: 10.1038/s41367-019-0007-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Over the past 20 years the use of dietary supplements as adjuvant therapy for weight loss gained growing favor among consumers and dietician-nutritionists, with the subsequent astounding increase in health costs. Despite the reassuring label of natural remedy for losing weight, dietary supplements contain a wide variety of ingredients on which available information is rather scanty and scientifically incomplete. Currently, there is little evidence that weight-loss supplements offer effective aids to reduce weight and meet criteria for recommended use. Robust, randomized, placebo-controlled studies to provide clear-cut scientific evidence of their efficacy and potential side effects in clinical practice are still lacking. Understanding the evidence for the efficacy, safety, and quality of these supplements among nutritionists and physicians is critical to counsel patients appropriately, especially considering the risk of serious adverse effects and interference with concomitant therapies. Detailed information on the efficacy and safety of the most commonly used weight-loss dietary supplements has been recently published by the National Institutes of Health (NIH). However, in this report the thorny issue that may result from drug interactions with weight-loss dietary supplements has been not sufficiently addressed. The aim of this review was to provide a synthetic, evidence-based report on efficacy and safety of the most commonly used ingredients in dietary supplements marketed for weight loss, particularly focusing on their possible drug interactions.
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Affiliation(s)
- Luigi Barrea
- Unit of Endocrinology, Dipartimento di Medicina Clinica e Chirurgia, Federico II University Medical School of Naples, Via Sergio Pansini 5, 80131 Naples, Italy
| | - Barbara Altieri
- Unit of Endocrinology, Dipartimento di Medicina Clinica e Chirurgia, Federico II University Medical School of Naples, Via Sergio Pansini 5, 80131 Naples, Italy
| | - Barbara Polese
- Unit of Endocrinology, Dipartimento di Medicina Clinica e Chirurgia, Federico II University Medical School of Naples, Via Sergio Pansini 5, 80131 Naples, Italy
| | - Barbara De Conno
- Unit of Endocrinology, Dipartimento di Medicina Clinica e Chirurgia, Federico II University Medical School of Naples, Via Sergio Pansini 5, 80131 Naples, Italy
| | - Giovanna Muscogiuri
- Unit of Endocrinology, Dipartimento di Medicina Clinica e Chirurgia, Federico II University Medical School of Naples, Via Sergio Pansini 5, 80131 Naples, Italy
| | - Annamaria Colao
- Unit of Endocrinology, Dipartimento di Medicina Clinica e Chirurgia, Federico II University Medical School of Naples, Via Sergio Pansini 5, 80131 Naples, Italy
| | - Silvia Savastano
- Unit of Endocrinology, Dipartimento di Medicina Clinica e Chirurgia, Federico II University Medical School of Naples, Via Sergio Pansini 5, 80131 Naples, Italy
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Tomar M, Rao RP, Dorairaj P, Koshta A, Suresh S, Rafiq M, Kumawat R, Paramesh R, V BU, Venkatesh K. A clinical and computational study on anti-obesity effects of hydroxycitric acid. RSC Adv 2019; 9:18578-18588. [PMID: 35547650 PMCID: PMC9087877 DOI: 10.1039/c9ra01345h] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 07/18/2019] [Accepted: 06/06/2019] [Indexed: 12/03/2022] Open
Abstract
Hydroxycitric acid (HCA), a major active ingredient of Garcinia cambogia extracts, is known to suppress body weight gain and fat synthesis in animals and humans. But the underlying mechanism of HCA action is not fully understood. Clinical study on 100 obese individuals for a period of 3 months was performed followed by a computational study aimed to investigate the effects of HCA treatment on human subjects at anthropometric and plasma lipid profile levels. A detailed hepatic metabolic model was used to incorporate the effect of HCA at the metabolic pathway level. Perturbation analysis of ATP citrate lyase activity in the metabolic pathway was performed to simulate the net effect of HCA. Significant reductions in body weight, triceps, subscapular, and mid axillary measurements as well as in serum triglyceride, cholesterol, HDL and LDL levels were observed following HCA dosage. During the study, half of the subjects experienced a decline in body weight and the remainder experienced an increase in body weight. However, analysis of fat mass with the help of empirical correlations clearly showed significant reduction in the mean values due to HCA dosage in both cases. An extra increase in fat free mass was responsible for offsetting the decrease in fat mass for the subjects who experienced an increase in body weight during the trials. Perturbation analysis showed a net reduction in fatty acid, triglyceride and cholesterol synthesis along with urea cycle fluxes under lipogenetic conditions. Moreover, protein synthesis fluxes increased under these conditions. These results indicate that HCA treatment can reduce body weight gain and fat accumulation in obese subjects along with improving their anthropometric parameters and metabolic state. Hydroxycitric acid (HCA), a major active ingredient of Garcinia cambogia extracts, is known to suppress body weight gain and fat synthesis in animals and humans.![]()
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Affiliation(s)
- Manu Tomar
- Department of Chemical Engineering
- Indian Institute of Technology, Bombay
- Mumbai – 400076
- India
| | | | | | - Abhishek Koshta
- Department of Chemical Engineering
- Indian Institute of Technology, Bombay
- Mumbai – 400076
- India
| | - Sowbhagya Suresh
- Department of Chemical Engineering
- Indian Institute of Technology, Bombay
- Mumbai – 400076
- India
| | | | | | | | - Babu U. V
- The Himalaya Drug Company
- Bengaluru
- India
| | - K. V. Venkatesh
- Department of Chemical Engineering
- Indian Institute of Technology, Bombay
- Mumbai – 400076
- India
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14
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Venkatakrishnan K, Chiu HF, Wang CK. Extensive review of popular functional foods and nutraceuticals against obesity and its related complications with a special focus on randomized clinical trials. Food Funct 2019; 10:2313-2329. [DOI: 10.1039/c9fo00293f] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Weight management (anti-obesity) by popular functional foods and nutraceuticals.
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Affiliation(s)
- Kamesh Venkatakrishnan
- School of Nutrition
- Chung Shan Medical University
- Taichung City-40201
- Taiwan
- Republic of China
| | - Hui-Fang Chiu
- Department of Chinese Medicine
- Taichung Hospital Ministry of Health and Welfare
- Taichung-40301
- Taiwan
- Republic of China
| | - Chin-Kun Wang
- School of Nutrition
- Chung Shan Medical University
- Taichung City-40201
- Taiwan
- Republic of China
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15
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Kim BM, Cho BO, Jang SI. Muscat Bailey A grape stalk extract ameliorates high-fat diet‑induced obesity by downregulating PPARγ and C/EPBα in mice. Int J Mol Med 2018; 43:489-500. [PMID: 30365044 DOI: 10.3892/ijmm.2018.3951] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 09/13/2018] [Indexed: 11/06/2022] Open
Abstract
Muscat Bailey A grape stalk is an organic waste produced in marked amounts during the vinification of grapes. Previous studies have indicated that grape stalk is rich in bioactive phenolic compounds, and exhibits antioxidant and UV‑protective activities. However, its effects on obesity and obesity‑associated disorders have not yet been investigated. The effects of grape stalk extract on improving metabolic features were examined using a high‑fat diet (HFD)‑induced obesity mouse model. Oral administration of 200 mg/kg/day grape stalk extract over 16 weeks markedly prevented HFD‑induced obesity, hepatic steatosis, diabetic symptoms and the risk of developing cardiovascular disease. Furthermore, grape stalk extract prevented oxidative stress and inflammation caused by HFD in mice. The beneficial effect may be associated with CCAAT/enhancer‑binding protein α and peroxisome‑proliferator‑activated receptor γ down-regulation in liver tissue. Collectively, the results of the present study indicated that grape stalk extract may be a potent functional food ingredient for preventing obesity, hepatic steatosis and type 2 diabetes.
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Affiliation(s)
- Bo-Mi Kim
- Department of Chemical Engineering, Wonkwang University, Iksan, Jeonbuk 54538, Republic of Korea
| | - Byoung Ok Cho
- Research Institute, Ato Q&A Co., Ltd., Jeonju, Jeonbuk 54840, Republic of Korea
| | - Seon Il Jang
- Research Institute, Ato Q&A Co., Ltd., Jeonju, Jeonbuk 54840, Republic of Korea
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16
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Haber SL, Awwad O, Phillips A, Park AE, Pham TM. Garcinia cambogia for weight loss. Am J Health Syst Pharm 2018; 75:17-22. [PMID: 29317394 DOI: 10.2146/ajhp160915] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Affiliation(s)
- Stacy L Haber
- Midwestern University College of Pharmacy-GlendaleGlendale, AZ
| | - Omar Awwad
- Department of PharmacyBlessing Health SystemQuincy, IL
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17
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Peng M, Li L, Yu L, Ge C, Ma H. Effects of (−)‐hydroxycitric acid on lipid droplet accumulation in chicken embryos. Anim Sci J 2017; 89:237-249. [DOI: 10.1111/asj.12887] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 07/04/2017] [Indexed: 01/18/2023]
Affiliation(s)
- Mengling Peng
- Key Laboratory of Animal Physiology and Biochemistry College of Veterinary Medicine Nanjing Agricultural University Nanjing China
| | - Longlong Li
- Key Laboratory of Animal Physiology and Biochemistry College of Veterinary Medicine Nanjing Agricultural University Nanjing China
| | - Lei Yu
- Key Laboratory of Animal Physiology and Biochemistry College of Veterinary Medicine Nanjing Agricultural University Nanjing China
| | - Chongyang Ge
- Key Laboratory of Animal Physiology and Biochemistry College of Veterinary Medicine Nanjing Agricultural University Nanjing China
| | - Haitian Ma
- Key Laboratory of Animal Physiology and Biochemistry College of Veterinary Medicine Nanjing Agricultural University Nanjing China
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18
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Bahmani M, Eftekhari Z, Saki K, Fazeli-Moghadam E, Jelodari M, Rafieian-Kopaei M. Obesity Phytotherapy. J Evid Based Complementary Altern Med 2016; 21:228-234. [DOI: 10.1177/2156587215599105] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2023] Open
Abstract
Obesity is an important disorders due to which 25 million deaths occur annually worldwide. Synthetic drugs for weight loss have low efficacy and high side effects. Apart from synthetic drugs in modern medicine, various other methods including the use of herbal medications are used to induce weight loss. Cambodia hoodia, green tea, Citrus aurantium, white beans, fenugreek, caffeine, ephedrine, capsaicin, yohimbine, chitosan, fitostreols, and guar gum have been studied in clinical trials and their effects have been confirmed. It seems necessary to study more to determine the effectiveness and safety of medicinal plants and herbal extracts as well as pharmaceutically active ingredients that may have the property of weight loss. In this article, we aimed to review recent knowledge about medicinal plants that are recommended for weight loss.
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Affiliation(s)
- Mahmoud Bahmani
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
| | | | - Kourosh Saki
- Lorestan University of Medical Sciences, Khorramabad, Iran
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19
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A comprehensive scientific overview of Garcinia cambogia. Fitoterapia 2015; 102:134-48. [DOI: 10.1016/j.fitote.2015.02.012] [Citation(s) in RCA: 112] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2015] [Revised: 02/07/2015] [Accepted: 02/12/2015] [Indexed: 12/12/2022]
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20
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Esteghamati A, Mazaheri T, Vahidi Rad M, Noshad S. Complementary and alternative medicine for the treatment of obesity: a critical review. Int J Endocrinol Metab 2015; 13:e19678. [PMID: 25892995 PMCID: PMC4386228 DOI: 10.5812/ijem.19678] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Revised: 09/03/2014] [Accepted: 12/02/2014] [Indexed: 12/31/2022] Open
Abstract
CONTEXT Obesity and its associated morbidities pose a major health hazard to the public. Despite a multiplex of available diet and exercise programs for losing and maintaining weight, over the past years, interest in the use of complementary and alternative medicine (CAM) for obesity treatment has greatly increased. EVIDENCE ACQUISITION We searched PubMed, Google scholar and the Cochrane databases for systemic reviews, review articles, meta-analysis and randomized clinical trials up to December 2013. RESULTS In this review, the efficacy and safety of the more commonly used CAM methods for the treatment of obesity, namely herbal supplements, acupuncture, and non-invasive body-contouring, are briefly discussed. The evidence supporting the effectiveness and safety of these methods is either lacking or point to a negligible clinical benefit, barely surpassing that of the placebo. Furthermore, several limitations are observed in the available scientific literature. These shortcomings include, without being limited to, uncontrolled trial designs, non-random allocation of subjects to treatment arms, small number of patients enrolled, short durations of follow-up, and ambiguous clinical and laboratory endpoints. CONCLUSIONS Further investigations are necessary to accurately determine the efficacy, safety, standard dosage/procedure, and potential side effects of the various CAM methods currently in use.
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Affiliation(s)
- Alireza Esteghamati
- Endocrinology and Metabolism Research Center (EMRC), Vali-Asr Hospital, School of Medicine, Tehran University of Medical Sciences, Tehran, IR Iran
- Corresponding author: Alireza Esteghamati, Endocrinology and Metabolism Research Center (EMRC), Vali-Asr Hospital, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran. Fax: +98-2164432466, Tel: +98-2188417918, E-mail:
| | - Tina Mazaheri
- Endocrinology and Metabolism Research Center (EMRC), Vali-Asr Hospital, School of Medicine, Tehran University of Medical Sciences, Tehran, IR Iran
| | - Mona Vahidi Rad
- Endocrinology and Metabolism Research Center (EMRC), Vali-Asr Hospital, School of Medicine, Tehran University of Medical Sciences, Tehran, IR Iran
| | - Sina Noshad
- Endocrinology and Metabolism Research Center (EMRC), Vali-Asr Hospital, School of Medicine, Tehran University of Medical Sciences, Tehran, IR Iran
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21
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Kazemipoor M, Cordell GA, Sarker MMR, Radzi CWJBWM, Hajifaraji M, En Kiat P. Alternative Treatments for Weight Loss: Safety/Risks and Effectiveness of Anti-Obesity Medicinal Plants. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2014. [DOI: 10.1080/10942912.2014.933350] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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22
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Chong PW, Beah ZM, Grube B, Riede L. IQP-GC-101 reduces body weight and body fat mass: a randomized, double-blind, placebo-controlled study. Phytother Res 2014; 28:1520-6. [PMID: 24797657 PMCID: PMC4235473 DOI: 10.1002/ptr.5158] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Revised: 03/06/2014] [Accepted: 03/26/2014] [Indexed: 12/19/2022]
Abstract
IQP-GC-101 is a patented blend of the standardized extracts of Garcinia cambogia, Camellia sinensis, unroasted Coffea arabica, and Lagerstroemia speciosa. These individual ingredients of IQP-GC-101 have each shown promise in promoting weight loss; however, the efficacy of the blend has not been established. This randomized, placebo-controlled, double-blind, parallel group study conducted over 14 weeks (including a 2-week run-in phase) aimed to investigate the efficacy and safety of IQP-GC-101 in reducing body weight and body fat mass in overweight Caucasian adults. Subjects took three IQP-GC-101 or placebo tablets, twice a day, 30 min before main meals. All subjects also adhered to a 500 kcal/day energy deficit diet with 30% of energy from fat. Ninety-one overweight and mildly obese subjects (46 in the IQP-GC-101 group, 45 in the placebo group) completed the study. After 12-week intervention, IQP-GC-101 resulted in a mean (±SD) weight loss of 2.26 ± 2.37 kg compared with 0.56 ± 2.34 kg for placebo (pU = 0.002). There was also significantly more reduction in body fat mass, waist circumference, and hip circumference in the IQP-GC-101 group. No serious adverse events were reported. The use of IQP-GC-101 has been shown to result in body weight and body fat reduction in the current study, with good tolerability.
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Affiliation(s)
- Pee-Win Chong
- InQpharm Europe Ltd, Invision House, Wilbury Way, Hitchin, Hertfordshire, SG4 0TY, UK
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23
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Mayer MA, Finlayson G, Fischman D, de Paz C, Telleriarte MR, Ferrero AJ, Bobillo C, Fernández BE. Evaluation of the satiating properties of a nutraceutical product containing Garcinia cambogia and Ascophyllum nodosum extracts in healthy volunteers. Food Funct 2014; 5:773-9. [PMID: 24563084 DOI: 10.1039/c3fo60631g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
A nutraceutical product composed of a combination of Garcinia cambogia, l-carnitine and a seaweed extract of Ascophyllum nodosum has been recently developed. The aim of the present study was to characterize its effects on subjective satiety sensations and food preferences in healthy volunteers. In a crossover design, 28 subjects (21 females and 7 males, aged 31 ± 5, BMI 22.6 ± 1.7) were randomly assigned to receive the active treatment (LIS) or placebo (PL) over one week. At the end of each treatment period, subjects were instructed to consume ad libitum a test meal. Food preferences and appetite sensations were evaluated by means of the Leeds Food Preferences Questionnaire and visual analog scales, before and after meal, over three hours. There were no differences in energy intake between study groups. LIS was associated with a reduction in subjective hunger sensations (p = 0.018) and to an increase in satiety (p = 0.02) and fullness (p = 0.01) ratings. The preference for high fat foods was reduced after consuming the test meal in both study groups. There was a significant effect of LIS treatment on food explicit liking and implicit wanting, as evidenced by an increase in preference for sweet foods (relative to savory foods; p = 0.03 and p = 0.004, respectively), but no differences were observed regarding the preference for low or high fat foods (NS). These results provide proof of principle for the satiating properties of a nutraceutical containing Garcinia cambogia, Ascophyllum nodosum extract and l-carnitine and suggest that it might be useful as an appetite modulator.
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24
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Vasques CAR, Schneider R, Klein-Júnior LC, Falavigna A, Piazza I, Rossetto S. Hypolipemic Effect ofGarcinia cambogiain Obese Women. Phytother Res 2013; 28:887-91. [DOI: 10.1002/ptr.5076] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Revised: 09/02/2013] [Accepted: 09/22/2013] [Indexed: 11/05/2022]
Affiliation(s)
- Carlos A. R. Vasques
- Grupo de pesquisa em saúde humana e ambiente, Instituto de Ciências da Saúde; Universidade Feevale; RS-239, 2755, 93352-000 Novo Hamburgo Rio Grande do Sul Brasil
| | - Ricardo Schneider
- Grupo de pesquisa em saúde humana e ambiente, Instituto de Ciências da Saúde; Universidade Feevale; RS-239, 2755, 93352-000 Novo Hamburgo Rio Grande do Sul Brasil
| | - Luiz C. Klein-Júnior
- Grupo de pesquisa em saúde humana e ambiente, Instituto de Ciências da Saúde; Universidade Feevale; RS-239, 2755, 93352-000 Novo Hamburgo Rio Grande do Sul Brasil
| | - Andressa Falavigna
- Grupo de pesquisa em saúde humana e ambiente, Instituto de Ciências da Saúde; Universidade Feevale; RS-239, 2755, 93352-000 Novo Hamburgo Rio Grande do Sul Brasil
| | - Ivone Piazza
- Grupo de pesquisa em saúde humana e ambiente, Instituto de Ciências da Saúde; Universidade Feevale; RS-239, 2755, 93352-000 Novo Hamburgo Rio Grande do Sul Brasil
| | - Simone Rossetto
- Grupo de pesquisa em saúde humana e ambiente, Instituto de Ciências da Saúde; Universidade Feevale; RS-239, 2755, 93352-000 Novo Hamburgo Rio Grande do Sul Brasil
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Astell KJ, Mathai ML, Su XQ. A review on botanical species and chemical compounds with appetite suppressing properties for body weight control. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2013; 68:213-21. [PMID: 23666454 DOI: 10.1007/s11130-013-0361-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
As obesity has reached epidemic proportions, the management of this global disease is of clinical importance. The availability and popularity of natural dietary supplements for the treatment of obesity has risen dramatically in recent years. The purpose of this paper was to review the effect of commonly available over the counter plant-derived supplements used to suppress appetite for obesity control and management. The data were obtained from the electronic databases PubMed, SpringerLink, Google Scholar, ScienceDirect, and MEDLINE with full text (via EBSCOHost) and the databases were accessed during late 2012 - early January 2013. The botanical species discussed in this review include Camellia sinensis, Caralluma fimbriata, Citrus aurantium, Coleus forskohlii, Garcinia cambogia and Phaseolus vulgaris. This review found that many botanical species including crude extracts and isolated compounds from plants have been shown to provide potentially promising therapeutic effects including appetite control and weight loss. However, many of these crude extracts and compounds need to be further investigated to define the magnitude of the effects, optimal dosage, mechanisms of action, long term safety, and potential side effects.
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Affiliation(s)
- Katie J Astell
- College of Health and Biomedicine, Victoria University, Melbourne, Victoria, Australia
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Updates on Antiobesity Effect of Garcinia Origin (-)-HCA. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:751658. [PMID: 23990846 PMCID: PMC3748738 DOI: 10.1155/2013/751658] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2013] [Accepted: 07/07/2013] [Indexed: 12/11/2022]
Abstract
Garcinia is a plant under the family of Clusiaceae that is commonly used as a flavouring agent. Various phytochemicals including flavonoids and organic acid have been identified in this plant. Among all types of organic acids, hydroxycitric acid or more specifically (−)-hydroxycitric acid has been identified as a potential supplement for weight management and as antiobesity agent. Various in vivo studies have contributed to the understanding of the anti-obesity effects of Garcinia/hydroxycitric acid via regulation of serotonin level and glucose uptake. Besides, it also helps to enhance fat oxidation while reducing de novo lipogenesis. However, results from clinical studies showed both negative and positive antiobesity effects of Garcinia/hydroxycitric acid. This review was prepared to summarise the update of chemical constituents, significance of in vivo/clinical anti-obesity effects, and the importance of the current market potential of Garcinia/hydroxycitric acid.
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Astell KJ, Mathai ML, Su XQ. Plant extracts with appetite suppressing properties for body weight control: a systematic review of double blind randomized controlled clinical trials. Complement Ther Med 2013; 21:407-16. [PMID: 23876572 DOI: 10.1016/j.ctim.2013.05.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2013] [Revised: 05/08/2013] [Accepted: 05/22/2013] [Indexed: 11/18/2022] Open
Abstract
OVERVIEW As obesity has reached epidemic proportions, the management of this global disease is of clinical importance. The availability and popularity of natural dietary supplements for the treatment of obesity has risen dramatically in recent years. AIMS The aim of this paper was to assess the current evidence of commonly available natural supplements used to suppress appetite for obesity control and management in humans using a systematic search of clinical trials meeting an acceptable standard of evidence. METHODS The electronic databases PubMed, Web of Science, Google Scholar, ScienceDirect, and MEDLINE with full text (via EBSCOHost) were accessed during late 2012 for randomized controlled clinical trials (RCTs) using natural plant extracts as interventions to treat obesity through appetite regulation. A quality analysis using a purpose-designed scale and an estimation of effect size, where data were available, was also calculated. The inclusion criteria included the following: sample participants classified as overweight or obese adults (aged 18-65 years), randomized, double blind, controlled design, suitable placebo/control intervention, sample size >20, duration of intervention >2 weeks, have measurable outcomes on appetite or food intake and anthropometry, and full paper in English. RESULTS There were 14 studies that met the inclusion criteria. The findings from published double blind RCTs revealed mostly inconclusive evidence that plant extracts are effective in reducing body weight through appetite suppression. Caralluma fimbriata extract and a combination supplement containing Garcinia cambogia plus Gymnema sylvestre were the only exceptions. CONCLUSION According to the findings from this systematic review, the evidence is not convincing in demonstrating that most dietary supplements used as appetite suppressants for weight loss in the treatment of obesity are effective and safe. A balance between conclusive findings by double blind RCTs and advertisement is required to avoid safety concerns and dissatisfaction from consumers.
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Affiliation(s)
- Katie J Astell
- College of Health and Biomedicine, Victoria University, Melbourne, Australia
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28
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Tang W, Pan MH, Sang S, Li S, Ho CT. Garcinol from Garcinia indica: Chemistry and Health Beneficial Effects. ACS SYMPOSIUM SERIES 2013. [DOI: 10.1021/bk-2013-1129.ch008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Wenping Tang
- Department of Food Science, Rutgers University, 65 Dudley Road, New Brunswick, New Jersey 08901, USA
- Department of Seafood Science, National Kaohsiung Marine University, Kaohsiung, Taiwan
- Center for Excellence in Post-Harvest Technologies, North Carolina Agricultural and Technical State University, North Carolina Research Campus, 500 Laureate Way, Kannapolis, North Carolina 28081, USA
| | - Min-Hsiung Pan
- Department of Food Science, Rutgers University, 65 Dudley Road, New Brunswick, New Jersey 08901, USA
- Department of Seafood Science, National Kaohsiung Marine University, Kaohsiung, Taiwan
- Center for Excellence in Post-Harvest Technologies, North Carolina Agricultural and Technical State University, North Carolina Research Campus, 500 Laureate Way, Kannapolis, North Carolina 28081, USA
| | - Shengmin Sang
- Department of Food Science, Rutgers University, 65 Dudley Road, New Brunswick, New Jersey 08901, USA
- Department of Seafood Science, National Kaohsiung Marine University, Kaohsiung, Taiwan
- Center for Excellence in Post-Harvest Technologies, North Carolina Agricultural and Technical State University, North Carolina Research Campus, 500 Laureate Way, Kannapolis, North Carolina 28081, USA
| | - Shiming Li
- Department of Food Science, Rutgers University, 65 Dudley Road, New Brunswick, New Jersey 08901, USA
- Department of Seafood Science, National Kaohsiung Marine University, Kaohsiung, Taiwan
- Center for Excellence in Post-Harvest Technologies, North Carolina Agricultural and Technical State University, North Carolina Research Campus, 500 Laureate Way, Kannapolis, North Carolina 28081, USA
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University, 65 Dudley Road, New Brunswick, New Jersey 08901, USA
- Department of Seafood Science, National Kaohsiung Marine University, Kaohsiung, Taiwan
- Center for Excellence in Post-Harvest Technologies, North Carolina Agricultural and Technical State University, North Carolina Research Campus, 500 Laureate Way, Kannapolis, North Carolina 28081, USA
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In vitro and in vivo toxicity of garcinia or hydroxycitric Acid: a review. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 2012:197920. [PMID: 22924054 PMCID: PMC3424601 DOI: 10.1155/2012/197920] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/08/2012] [Revised: 06/11/2012] [Accepted: 06/25/2012] [Indexed: 12/15/2022]
Abstract
Obesity is one of the pandemic chronic diseases commonly associated with health disorders such as heart attack, high blood pressure, diabetes or even cancer. Among the current natural products for obesity and weight control, Garcinia or more specifically hydroxycitric acid (HCA) extracted from Garcinia has been widely used. The evaluation of the potential toxicity of weight control supplement is of the utmost importance as it requires long term continuous consumption in order to maintain its effects. Majority of reports demonstrated the efficacy of Garcinia/HCA without any toxicity found. However, a few clinical toxicity reports on weight-loss diet supplements of which some were combinations that included Garcinia/HCA as an active ingredient showed potential toxicity towards spermatogenesis. Nonetheless, it cannot be concluded that Garcinia/HCA is unsafe. Those products which have been reported to possess adverse effects are either polyherbal or multi-component in nature. To date, there is no case study or report showing the direct adverse effect of HCA. The structure, mechanism of action, long history of the use of Garcinia/HCA and comprehensive scientific evidence had shown “no observed adverse effect level (NOAEL)” at levels up to 2800 mg/day, suggesting its safety for use.
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Márquez F, Babio N, Bulló M, Salas-Salvadó J. Evaluation of the safety and efficacy of hydroxycitric acid or Garcinia cambogia extracts in humans. Crit Rev Food Sci Nutr 2012; 52:585-94. [PMID: 22530711 DOI: 10.1080/10408398.2010.500551] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Several studies have shown that Garcinia cambogia plays an important role in the regulation of endogenous lipid biosynthesis. This effect is specially attributed to (-)-hydroxycitric acid (HCA) inhibiting the enzyme ATP-dependent citrate lyase, which catalyzes the cleavage of citrate to oxaloacetate and acetyl-CoA. Although several studies have found that the administration of G. cambogia extracts is associated with body weight and fat loss in both experimental animals and humans, we should be cautious when interpreting the results as other randomized, placebo-controlled clinical trials have not reported the same outcomes. Furthermore, most studies in humans have been conducted on small samples and mainly in the short term. None of them have shown whether these effects persist beyond 12 weeks of intervention. Therefore, there is still little evidence to support the potential effectiveness and long-term benefits of G. cambogia extracts. With regard to toxicity and safety, it is important to note that except in rare cases, studies conducted in experimental animals have not reported increased mortality or significant toxicity. Furthermore, at the doses usually administered, no differences have been reported in terms of side effects or adverse events (those studied) in humans between individuals treated with G. cambogia and controls.
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Affiliation(s)
- Fabiola Márquez
- Human Nutrition Unit, Department of Biochemistry and Biotechnology, Faculty of Medicine and Health Sciences, Rovira i Virgili University, Reus, Spain
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Kim JE, Jeon SM, Park KH, Lee WS, Jeong TS, McGregor RA, Choi MS. Does Glycine max leaves or Garcinia Cambogia promote weight-loss or lower plasma cholesterol in overweight individuals: a randomized control trial. Nutr J 2011; 10:94. [PMID: 21936892 PMCID: PMC3189865 DOI: 10.1186/1475-2891-10-94] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2011] [Accepted: 09/21/2011] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Natural food supplements with high flavonoid content are often claimed to promote weight-loss and lower plasma cholesterol in animal studies, but human studies have been more equivocal. The aim of this study was firstly to determine the effectiveness of natural food supplements containing Glycine max leaves extract (EGML) or Garcinia cambogia extract (GCE) to promote weight-loss and lower plasma cholesterol. Secondly to examine whether these supplements have any beneficial effect on lipid, adipocytokine or antioxidant profiles. METHODS Eighty-six overweight subjects (Male:Female = 46:40, age: 20~50 yr, BMI > 23 < 29) were randomly assigned to three groups and administered tablets containing EGML (2 g/day), GCE (2 g/day) or placebo (starch, 2 g/day) for 10 weeks. At baseline and after 10 weeks, body composition, plasma cholesterol and diet were assessed. Blood analysis was also conducted to examine plasma lipoproteins, triglycerides, adipocytokines and antioxidants. RESULTS EGML and GCE supplementation failed to promote weight-loss or any clinically significant change in %body fat. The EGML group had lower total cholesterol after 10 weeks compared to the placebo group (p < 0.05). EGML and GCE had no effect on triglycerides, non-HDL-C, adipocytokines or antioxidants when compared to placebo supplementation. However, HDL-C was higher in the EGML group (p < 0.001) after 10 weeks compared to the placebo group. CONCLUSIONS Ten weeks of EGML or GCE supplementation did not promote weight-loss or lower total cholesterol in overweight individuals consuming their habitual diet. Although, EGML did increase plasma HDL-C levels which is associated with a lower risk of atherosclerosis.
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Affiliation(s)
- Ji-Eun Kim
- Department of Food Science and Nutrition, Kyungpook National University, Daegu, Republic of Korea
| | - Seon-Min Jeon
- Center for Food and Nutritional Genomics Research, Kyungpook National University, Daegu, Republic of Korea
- Department of Food Science and Nutrition, Kyungpook National University, Daegu, Republic of Korea
| | - Ki Hun Park
- Division of Applied Life Science (BK 21 Program), EB-NCRC, Institute of Agriculture and Life Science, Graduate School of Gyeongsang National University, Jinju, Republic of Korea
| | - Woo Song Lee
- Eco-Friendly Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - Tae-Sook Jeong
- National Research Laboratory of Lipid Metabolism & Atherosclerosis, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea
| | - Robin A McGregor
- Center for Food and Nutritional Genomics Research, Kyungpook National University, Daegu, Republic of Korea
| | - Myung-Sook Choi
- Center for Food and Nutritional Genomics Research, Kyungpook National University, Daegu, Republic of Korea
- Department of Food Science and Nutrition, Kyungpook National University, Daegu, Republic of Korea
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Yuliana ND, Jahangir M, Korthout H, Choi YH, Kim HK, Verpoorte R. Comprehensive review on herbal medicine for energy intake suppression. Obes Rev 2011; 12:499-514. [PMID: 20659298 DOI: 10.1111/j.1467-789x.2010.00790.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The obesity drug development is present not a bright and successful story. So far, drugs reported to be effective, either from synthetic or natural sources, mostly stimulated controversy because of serious adverse effects, which ended with stopping clinical trials or even withdrawal from the market. However, obesity and its comorbidities have become rapidly a major problem in both developed and developing countries. This has encouraged pharmaceutical companies and academia to keep on struggling on developing novel effective but safe obesity drugs, and on characterizing novel obesity drug targets. From existing scientific work on obesity drug discovery and commercial slimming preparations, compounds originating from nature, especially from plants, seem to be the first choice. Traditional belief that herbal medicine is safer than synthetic ones is one of the classical arguments, although scientifically this is not always true (e.g. ban on Ephedra). But in general, it has been widely acknowledged that a plant compound, with its unique scaffolds and rich diversity is an unlimited source of novel lead compounds. This paper aims to summarize all works focused on screening plant materials by targeting important pathways related to energy intake regulation, either by in vivo or in vitro experiments.
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Affiliation(s)
- N D Yuliana
- Department of Pharmacognosy, Section of Metabolomics, Leiden University, Leiden, The Netherlands
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Amin KA, Kamel HH, Abd Eltawab MA. Protective effect of Garcinia against renal oxidative stress and biomarkers induced by high fat and sucrose diet. Lipids Health Dis 2011; 10:6. [PMID: 21235803 PMCID: PMC3034692 DOI: 10.1186/1476-511x-10-6] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2010] [Accepted: 01/14/2011] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Obesity became major health problem in the world, the objective of this work was to examine the effect of high sucrose and high fat diet to induce obesity on antioxidant defense system, biochemical changes in blood and tissue of control, non treated and treated groups by administration of Garcinia cambogia, and explore the mechanisms that link obesity with altered renal function. METHODS Rats were fed a standard control diet for 12 week (wk) or a diet containing 65% high sucrose (HSD) or 35% fat (HFD) for 8 wk and then HFD group divided into two groups for the following 4 wks. One group was given Garcinia+HFD, the second only high fat, Also the HSD divided into two groups, 1st HSD+Garcinia and 2nd HSD. Blood and renal, mesenteric, Perirenal and epididymal adipose tissues were collected for biochemical assays. RESULTS HFD and HSD groups of rats showed a significant increase in feed intake, Body weight (BW) and body mass index (BMI). Also there were significant increases in weights of mesenteric, Perirenal and epididymal adipose tissues in HFD and HSD groups.HFD and HSD affect the kidney by increasing serum urea and creatinine levels and decreased level of nitric oxide (NO) and increased blood glucose, low density lipoproteins (LDL), triacylglycerol (TG), total cholesterol (TC) and malondialdehyde (MDA). Glucose 6-phosphate dehydrogenase (G6PD) activities were significantly decreased in HFD while there were significant increases in HSD and HSD+G groups p ≤ 0.05 compared with control. Moreover, renal catalase activities and MDA levels were significantly increased while NO level was lowered. These changes improved by Garcinia that decreased the oxidative stress biomarkers and increased NO level.There were significant positive correlations among BMI, kidney functions (Creatinine and urea), TG and Oxidative markers (renal MDA and catalase). CONCLUSIONS Rats fed a diet with HFD or HSD showed, hypertriglyceridemia, increased LDL production, increased oxidative stress and renal alteration. Moreover, suggesting association between lipid peroxidation, obesity and nephropathy, while Garcinia ameliorated the damaging effects of the HFD or HSD and decreased feed intake, MDA level and decreased oxidative stress in renal tissues.
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Affiliation(s)
- Kamal A Amin
- Biochemistry Department, Faculty of Vete, Medicine, Beni-Suef University, Beni-Suef, Egypt.
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Vermaak I, Viljoen AM, Hamman JH. Natural products in anti-obesity therapy. Nat Prod Rep 2011; 28:1493-533. [DOI: 10.1039/c1np00035g] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Egras AM, Hamilton WR, Lenz TL, Monaghan MS. An evidence-based review of fat modifying supplemental weight loss products. J Obes 2011; 2011:297315. [PMID: 20847896 PMCID: PMC2931392 DOI: 10.1155/2011/297315] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2010] [Accepted: 06/09/2010] [Indexed: 01/20/2023] Open
Abstract
Objective. To review the literature on fat modifying dietary supplements commonly used for weight loss. Methods. Recently published randomized, placebo-controlled trials were identified in PubMed, MEDLINE, International Pharmaceutical Abstracts, Cochrane Database, and Google Scholar using the search terms dietary supplement, herbal, weight loss, obesity, and individual supplement names. Discussion. Data for conjugated linoleic acid (CLA), Garcinia cambogia, chitosan, pyruvate, Irvingia gabonensis, and chia seed for weight loss were identified. CLA, chitosan, pyruvate, and Irvingia gabonensis appeared to be effective in weight loss via fat modifying mechanisms. However, the data on the use of these products is limited. Conclusion. Many obese people use dietary supplements for weight loss. To date, there is little clinical evidence to support their use. More data is necessary to determine the efficacy and safety of these supplements. Healthcare providers should assist patients in weighing the risks and benefits of dietary supplement use for weight loss.
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Affiliation(s)
- Amy M. Egras
- Department of Pharmacy Practice, Jefferson School of Pharmacy, Thomas Jefferson University, Philadelphia, PA 19107-5233, USA
| | - William R. Hamilton
- Department of Pharmacy Sciences, School of Pharmacy and Health Professions, Creighton University, 2500 California Plaza, Omaha, NE 68178, USA
| | - Thomas L. Lenz
- Department of Pharmacy Practice, School of Pharmacy and Health Professions, Creighton University, 2500 California Plaza, Omaha, NE 68178, USA
- *Thomas L. Lenz:
| | - Michael S. Monaghan
- Department of Pharmacy Practice, School of Pharmacy and Health Professions, Creighton University, 2500 California Plaza, Omaha, NE 68178, USA
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Onakpoya I, Hung SK, Perry R, Wider B, Ernst E. The Use of Garcinia Extract (Hydroxycitric Acid) as a Weight loss Supplement: A Systematic Review and Meta-Analysis of Randomised Clinical Trials. J Obes 2011; 2011:509038. [PMID: 21197150 PMCID: PMC3010674 DOI: 10.1155/2011/509038] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2010] [Revised: 07/13/2010] [Accepted: 10/22/2010] [Indexed: 12/25/2022] Open
Abstract
The aim of this systematic review is to examine the efficacy of Garcinia extract, hydroxycitric acid (HCA) as a weight reduction agent, using data from randomised clinical trials (RCTs). Electronic and nonelectronic searches were conducted to identify relevant articles, with no restrictions in language or time. Two independent reviewers extracted the data and assessed the methodological quality of included studies. Twenty-three eligible trials were identified and twelve were included. Nine trials provided data suitable for statistical pooling. The meta-analysis revealed a small, statistically significant difference in weight loss favouring HCA over placebo (MD: -0.88 kg; 95% CI: -1.75, -0.00). Gastrointestinal adverse events were twice as common in the HCA group compared with placebo in one included study. It is concluded that the RCTs suggest that Garcinia extracts/HCA can cause short-term weight loss. The magnitude of the effect is small, and the clinical relevance is uncertain. Future trials should be more rigorous and better reported.
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Affiliation(s)
- Igho Onakpoya
- Peninsula Medical School, University of Exeter, Devon EX2 4NT, UK
- *Igho Onakpoya:
| | - Shao Kang Hung
- Peninsula Medical School, University of Exeter, Devon EX2 4NT, UK
| | - Rachel Perry
- Peninsula Medical School, University of Exeter, Devon EX2 4NT, UK
| | - Barbara Wider
- Peninsula Medical School, University of Exeter, Devon EX2 4NT, UK
| | - Edzard Ernst
- Peninsula Medical School, University of Exeter, Devon EX2 4NT, UK
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Tucci SA. Phytochemicals in the Control of Human Appetite and Body Weight. Pharmaceuticals (Basel) 2010; 3:748-763. [PMID: 27713277 PMCID: PMC4033978 DOI: 10.3390/ph3030748] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2009] [Revised: 03/10/2010] [Accepted: 03/19/2010] [Indexed: 12/20/2022] Open
Abstract
Since obesity has grown to epidemic proportions, its effective management is a very important clinical issue. Despite the great amount of scientific effort that has been put into understanding the mechanisms that lead to overconsumption and overweight, at the moment very few approaches to weight management are effective in the long term. On the other hand, modern society is also affected by the growing incidence of eating disorders on the other side of the spectrum such as anorexia and bulimia nervosa which are equally difficult to treat. This review will try to summarise the main findings available in the literature regarding the effect of plants or plant extracts (phytochemicals) on human appetite and body weight. The majority of plant extracts are not single compounds but rather a mixture of different molecules, therefore their mechanism of action usually targets several systems. In addition, since some cellular receptors tend to be widely distributed, sometimes a single molecule can have a widespread effect. This review will attempt to describe the main phytochemicals that have been suggested to affect the homeostatic mechanisms that influence intake and body weight. Clinical data will be summarised and scientific evidence will be reviewed.
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Affiliation(s)
- Sonia A Tucci
- Kissileff Laboratory for the Study of Human Ingestive Behaviour, School of Psychology, University of Liverpool, Eleanor Rathbone Building, Bedford Street South, Liverpool L69 7ZA, UK.
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Kreider RB, Wilborn CD, Taylor L, Campbell B, Almada AL, Collins R, Cooke M, Earnest CP, Greenwood M, Kalman DS, Kerksick CM, Kleiner SM, Leutholtz B, Lopez H, Lowery LM, Mendel R, Smith A, Spano M, Wildman R, Willoughby DS, Ziegenfuss TN, Antonio J. ISSN exercise & sport nutrition review: research & recommendations. J Int Soc Sports Nutr 2010. [PMCID: PMC2853497 DOI: 10.1186/1550-2783-7-7] [Citation(s) in RCA: 165] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Sports nutrition is a constantly evolving field with hundreds of research papers published annually. For this reason, keeping up to date with the literature is often difficult. This paper is a five year update of the sports nutrition review article published as the lead paper to launch the JISSN in 2004 and presents a well-referenced overview of the current state of the science related to how to optimize training and athletic performance through nutrition. More specifically, this paper provides an overview of: 1.) The definitional category of ergogenic aids and dietary supplements; 2.) How dietary supplements are legally regulated; 3.) How to evaluate the scientific merit of nutritional supplements; 4.) General nutritional strategies to optimize performance and enhance recovery; and, 5.) An overview of our current understanding of the ergogenic value of nutrition and dietary supplementation in regards to weight gain, weight loss, and performance enhancement. Our hope is that ISSN members and individuals interested in sports nutrition find this review useful in their daily practice and consultation with their clients.
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Bell SJ, Van Ausdal W, Grochoski G. Do Dietary Supplements Help Promote Weight Loss? J Diet Suppl 2009; 6:33-53. [DOI: 10.1080/19390210802687171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Acute effects of pharmacological modifications of fatty acid metabolism on human satiety. Br J Nutr 2008; 101:1867-77. [DOI: 10.1017/s0007114508143604] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The role of NEFA in eating behaviour is still poorly known. Our objective was to examine whether etomoxir (ETO), an inhibitor of NEFA oxidation, or ( − )-hydroxycitrate (HCA), an inhibitor of lipogenesis which may indirectly stimulate NEFA oxidation, alters satiety. Post-lunch satiety was measured in eight normal-weight male subjects who were deprived of time cues and received on three occasions either ETO (320 mg), HCA (2 g) or placebo (PLA) in random order. Between lunch and dinner, blood was withdrawn continuously and collected every 10 min for measures of plasma concentrations of glucose, insulin, lactate, TAG, NEFA, β-hydroxybutyrate (BHB), leptin and ghrelin. Results showed that HCA began to decrease hunger and desire to eat compared to PLA and ETO 210 min after lunch and increased satiety duration compared to PLA by 70 (se23) min (P < 0·05), but did not modify energy intake at dinner. ETO did not affect any variable of satiety. HCA increased NEFA concentrations during the pre-dinner period, whereas ETO increased and decreased plasma concentrations of NEFA and BHB, respectively. Mean differences in plasma NEFA concentrations between HCA and PLA were predictive of the differences in satiety duration between treatments (r20·71,P < 0·01). Among treatments, plasma leptin concentration at dinner onset was the only blood variable correlated with energy intake at this meal (r− 0·75,P < 0·0005). In healthy, normal-weight men, acute HCA increased the intensity and duration of satiety possibly via increased NEFA disposal for oxidation.
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Bagchi M, Zafra-Stone S, Sen CK, Roy S, Bagchi D. DNA Microarray Technology in the Evaluation of Weight Management Potential of a Novel Calcium-Potassium Salt of (—)-Hydroxycitric Acid. Toxicol Mech Methods 2008; 16:129-35. [PMID: 20021004 DOI: 10.1080/15376520600558549] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Vasques CAR, Rossetto S, Halmenschlager G, Linden R, Heckler E, Fernandez MSP, Alonso JLL. Evaluation of the pharmacotherapeutic efficacy ofGarcinia cambogiaplusAmorphophallus konjacfor the treatment of obesity. Phytother Res 2008; 22:1135-40. [DOI: 10.1002/ptr.2323] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Hollander JM, Mechanick JI. Complementary and Alternative Medicine and the Management of the Metabolic Syndrome. ACTA ACUST UNITED AC 2008; 108:495-509. [DOI: 10.1016/j.jada.2007.12.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2007] [Indexed: 01/06/2023]
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Roy S, Shah H, Rink C, Khanna S, Bagchi D, Bagchi M, Sen CK. Transcriptome of primary adipocytes from obese women in response to a novel hydroxycitric acid-based dietary supplement. DNA Cell Biol 2007; 26:627-39. [PMID: 17708719 DOI: 10.1089/dna.2007.0617] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Obesity is a global public health problem. Traditional herbal medicines may have some potential in managing obesity. The dried fruit rind of Garcinia cambogia, also known as Malabar tamarind, is a unique source of (-)-hydroxycitric acid (HCA), which exhibits a distinct sour taste and has been safely used for centuries in Southeastern Asia to make meals more filling. Recently it has been demonstrated that when taken orally, a novel, highly soluble calcium/potassium salt of HCA (HCA-SX) is safe and bioavailable in the human plasma. Although HCA-SX seems to be conditionally effective in weight management in experimental animals and in humans, its mechanism of action remains unclear. METHODS In this study, subcutaneous preadipocytes collected from obese women with body mass index>25 kg/m2 were differentiated to adipocytes for 2 weeks in culture. The effects of low-dose HCA-SX on lipid metabolism and on the adipocyte transcriptome were tested. HCA-SX augmented isoproterenol- and 3-isobutyryl-1-methylxanthine-induced lipolysis. Using oil red O, the production of lipid storage droplets by the cultured mature human adipocytes was visualized and enumerated. RESULTS HCA-SX caused droplet dispersion facilitating lipase action on the lipids. HCA-SX markedly induced leptin expression in the adipocytes. In the microarray analyses, a total of 54,676 probe sets were screened. HCA-SX resulted in significant down-regulation of 348, and induction of 366 fat- and obesity-related genes. HCA-SX induced transactivation of hypoxia inducible factor (HIF), a novel approach in the management of obesity. CONCLUSION Taken together, the net effects support the antilipolytic and antiadipogenic effects of HCA-SX. Further human studies are warranted.
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Affiliation(s)
- Sashwati Roy
- Laboratory of Molecular Medicine and the Microarray Core Facility, Department of Surgery, Davis Heart and Lung Research Institute, The Ohio State University Medical Center, Columbus, Ohio 43210, USA
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Lee KH, Lee BM. Evaluation of the genotoxicity of (-)-hydroxycitric acid (HCA-SX) isolated from Garcinia cambogia. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2007; 70:388-92. [PMID: 17454564 DOI: 10.1080/15287390600882192] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
(-)-Hydroxycitric acid (HCA) is widely used as an ingredient for nutritional supplements aimed at reducing food intake, appetite, and body weight. In this study, the genotoxicity of HCA was evaluated using three tests: a bacterial reverse mutation assay (Ames test), an in vitro chromosomal aberration (CA) test, and an in vivo micronucleus (MN) test. HCA was negative by the Ames test in the presence or absence of a microsomal metabolizing system. HCA did not induce mutagenic activity in the Ames test, and no significant mutagenic potency was indicated by CA tests. However, HCA significantly and dose-dependently increased the number of MNPCEs (micronucleated polychromatic erythrocytes/1000 polychromatic erythrocytes) and PCE/(PCE + NCE) ratios according to the MN test. These results suggest that HCA preferentially induce micronuclei.
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Affiliation(s)
- Kyung Hwan Lee
- Division of Toxicology, College of Pharmacy, Sungkyunkwan University, Suwon, Kyonggi-do, South Korea
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Toromanyan E, Aslanyan G, Amroyan E, Gabrielyan E, Panossian A. Efficacy of Slim339® in reducing body weight of overweight and obese human subjects. Phytother Res 2007; 21:1177-81. [PMID: 17639559 DOI: 10.1002/ptr.2231] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A double-blind, randomized, parallel-group, placebo-controlled study has been carried out in order to evaluate the effect of orally self-administered Slim339, a proprietary fixed combination of Garcinia cambogia extract with calcium pantothenate (standardized for the content of hydroxycitric acid and pantothenic acid) and extracts of Matricaria chamomilla, Rosa damascena, Lavandula officinalis and Cananga odorata, on body weight in overweight and obese volunteers. During a 60-day treatment period, the average reduction in body weight for the group receiving Slim339 (n = 30) was 4.67% compared with 0.63% for the placebo group (n = 28) (p < 0.0001). Weight losses of >or=3 kg were recorded for 23 subjects in the treatment group and only one in the placebo group. It is concluded that Slim339 represents a potential therapy for obesity.
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Affiliation(s)
- Edward Toromanyan
- Republican Endocrinology Center, Ministry of Health of Armenia, Yerevan, Armenia
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Obesity. Integr Med (Encinitas) 2007. [DOI: 10.1016/b978-1-4160-2954-0.50043-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Preuss HG, Bagchi M, Bagchi D. Comparison of the effects of three different (-)-hydroxycitric acid preparations on food intake in rats: response. Nutr Metab (Lond) 2006; 3:26. [PMID: 16846513 PMCID: PMC1540426 DOI: 10.1186/1743-7075-3-26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2006] [Accepted: 07/17/2006] [Indexed: 11/10/2022] Open
Abstract
Abstract
A response to Louter-van de Haar J, Wielinga PY, Scheurink AJ, Nieuwenhuizen AG: Comparison of the effects of three different (-)-hydroxycitric acid preparations on food intake in rats. Nutr Metabol 2005, 2:23
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Affiliation(s)
- Harry G Preuss
- Department of Physiology and Biophysics, Georgetown University Medical Center, Washington, DC 20057, USA
| | | | - Debasis Bagchi
- InterHealth Research Center, Benicia, CA 94510, USA
- Department of Pharmacy Sciences, Creighton University Medical Center, Omaha, NE 68178, USA
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