The Potential Effects Of L-Carnitine Supplementation On Body Weight And Body Fat Percentage in Healthy and Overweight/Obese People: A Literature Review
Latar belakang: Obesitas telah menjadi masalah yang serius di seluruh dunia. Meskipun kampanye dan rekomendasi terkait modifikasi gaya hidup sudah ditegakkan, tren obesitas masih cukup meningkat. Selain modifikasi gaya hidup, suplementasi makanan tampaknya memiliki efek penurunan berat badan yang menjanjikan. Salah satu suplemen makanan paling populer adalah L-Carnitine.
Tujuan: Untuk mengeksplorasi peran suplementasi L-Carnitine dalam memengaruhi berat badan, khususnya pada individu yang sehat dan obesitas.
Ulasan: L-karnitin memiliki peran penting dalam metabolisme asam lemak rantai panjang di mitokondria. Konsumsi 500 mg sampai 1 g suplemen L-Carnitine dalam 12 minggu terbukti menurunkan berat badan di antara peserta dengan status gizi gemuk dan obesitas. Suplementasi L-Carnitine juga memiliki efek yang signifikan pada penurunan massa lemak pada subjek dengan status gizi normal dan obesitas.
Kesimpulan: Suplementasi L-Carnitine menunjukkan hasil pada penurunan berat badan dan pengurangan massa lemak terutama pada individu dengan status gizi gemuk dan obesitas yang melakukan latihan fisik dan menjalani pembatasan kalori.
ABSTRACT
Background: Obesity has become a serious problem worldwide. Despite established lifestyle modification campaign and recommendation, obesity trend remains increasing. In addition to lifestyle modification, dietary supplementation seemingly has a promising weight-reduction effect. One of the most popular dietary supplement is L-Carnitine.
Objectives: This study aimed to comprehend potential roles of L-Carnitine supplementation on weight loss, specifically in healthy, overweight, and obese individuals.
Discussion: L-Carnitine plays a key role in long-chain fatty acid metabolism in mitochondria. The consumption of 500 mg to 1 g of L-Carnitine supplementation within 12 weeks was shown to decrease weight among overweight and obese participants. Moreover, L-Carnitine supplementation has a significant and direct effect on fat mass reduction in subjects with normal BMI and obesity.
Conclusions: L-Carnitine supplementation may show results in weight loss and fat mass reduction especially among obese and overweight individuals who performed physical exercise and underwent calorie restricted diet.
Achari, A. E. and Jain, S. K. (2017) ‘Adiponectin, a therapeutic target for obesity, diabetes, and endothelial dysfunction', International Journal of Molecular Sciences, 18(6). doi: 10.3390/ijms18061321.
Alshammari, N. (2011) ‘The Effect of L-Carnitine and Physical Activity on Adipocytokines and Lipid Profile in Obese Women', undefined.
Askarpour, M. et al. (2020) Beneficial effects of L-carnitine supplementation for weight management in overweight and obese adults: An updated systematic review and dose-response meta-analysis of randomized controlled trials, Pharmacological Research. Elsevier Ltd. doi: 10.1016/j.phrs.2019.104554.
Barnes, A. S. (2012) ‘Obesity and sedentary lifestyles risk for cardiovascular disease in women', Texas Heart Institute Journal, 39(2), pp. 224–227.
Bene, J., Hadzsiev, K. and Melegh, B. (2018) ‘Role of carnitine and its derivatives in the development and management of type 2 diabetes', Nutrition and Diabetes, 8(1), pp. 1–10. doi: 10.1038/s41387-018-0017-1.
Bruls, Y. M. et al. (2019) ‘Carnitine supplementation improves metabolic flexibility and skeletal muscle acetylcarnitine formation in volunteers with impaired glucose tolerance: A randomised controlled trial', EBioMedicine, 49, pp. 318–330. doi: 10.1016/j.ebiom.2019.10.017.
D'Antona, G. et al. (2014) ‘Creatine, L-Carnitine, and ω 3 Polyunsaturated Fatty Acid Supplementation from Healthy to Diseased Skeletal Muscle', BioMed Research International, 2014. doi: 10.1155/2014/613890.
Elmslie, J. L. et al. (2006) ‘Carnitine does not improve weight loss outcomes in valproate-treated bipolar patients consuming an energy-restricted, low-fat diet', Bipolar Disorders, 8(5 I), pp. 503–507. doi: 10.1111/j.1399-5618.2006.00345.x.
Fielding, R. et al. (2018) ‘L-carnitine supplementation in recovery after exercise', Nutrients. MDPI AG. doi: 10.3390/nu10030349.
Flanagan, J. L. et al. (2010) ‘Role of carnitine in disease', Nutrition and Metabolism, 7(1), p. 30. doi: 10.1186/1743-7075-7-30.
Forny-Germano, L., De Felice, F. G. and Do Nascimento Vieira, M. N. (2019) ‘The role of leptin and adiponectin in obesity-associated cognitive decline and Alzheimer's disease', Frontiers in Neuroscience, 13(JAN), p. 1027. doi: 10.3389/fnins.2018.01027.
Gariballa, S. et al. (2019) ‘Total adiponectin in overweight and obese subjects and its response to visceral fat loss', BMC Endocrine Disorders, 19(1), p. 55. doi: 10.1186/s12902-019-0386-z.
Gnoni, A. et al. (2020) ‘Carnitine in human muscle bioenergetics: Can carnitine supplementation improve physical exercise?', Molecules, 25(1). doi: 10.3390/molecules25010182.
Gropper, Sareen S. Smith, J. L. (2013) Essential trace and ultratrace minerals, Advanced Nutrion in Human.
Haghighi, A. et al. (2010) ‘The Effect of 6 Weeks of Aerobic Training and L-Carnitine Supplement on Body Fat Percent and Serum Lipid Profiles in Active Men', Journal of Sport Biosciences, 2(7). Available at: https://jsb.ut.ac.ir/article_23833.html (Accessed: 9 January 2021).
Karimi, M. et al. (2013) ‘Effect of L-carnitine Supplementation with or Without Moderate Aerobic Training on Serum Lipid Profile and Body Fat Percentage in Obese Women', Iranian Journal of Endocrinology and Metabolism, 14(5), pp. 445–454. Available at: http://ijem.sbmu.ac.ir/article-1-1368-en.html (Accessed: 9 January 2021).
Kelly, T. et al. (2008) ‘Global burden of obesity in 2005 and projections to 2030', International Journal of Obesity, 32(9), pp. 1431–1437. doi: 10.1038/ijo.2008.102.
Kil Joo, J. and Sup Lee, K. (2011) ‘Indication for Pharmacotherapy', Journal of Menopausal Medicine, 54(20), pp. 90–96. Available at: http://dx.doi.org/10.6118/jmm.2014.20.3.90.
Koeth, R. A. et al. (2013) ‘Intestinal microbiota metabolism of l-carnitine, a nutrient in red meat, promotes atherosclerosis', Nature Medicine, 19(5), pp. 576–585. doi: 10.1038/nm.3145.
Kopp, W. (2019) ‘How western diet and lifestyle drive the pandemic of obesity and civilization diseases', Diabetes, Metabolic Syndrome and Obesity: Targets and Therapy, 12, pp. 2221–2236. doi: 10.2147/DMSO.S216791.
Kumar, V., Abbas, A. and Aster, J. (2017) Robbins Basic Pathology - 10th Edition. 10th Edition. Philadelphia: Elsevier.
Kumari, A. (2018) ‘Beta Oxidation of Fatty Acids', in Sweet Biochemistry. Elsevier, pp. 17–19. doi: 10.1016/b978-0-12-814453-4.00004-2.
Lean, M. E. J. (2015) ‘Management of obesity and overweight', Medicine (United Kingdom), 43(2), pp. 94–100. doi: 10.1016/j.mpmed.2014.11.008.
Leelarungrayub, J. et al. (2017) ‘Effects of L-carnitine supplementation on metabolic utilization of oxygen and lipid profile among trained and untrained humans', Asian Journal of Sports Medicine, 8(1), pp. 1–9. doi: 10.5812/asjsm.38707.
Mor, A. et al. (2018) ‘Effect of L-Carnitine Supplementation on Weight Loss and Body Composition of Taekwondo Players', undefined.
Mosah, H. A. et al. (2015) ‘Effect of L-carnitine and Raspberry Ketones on Metabolic Parameters in Iraqi Obese Females, a Comparative Study.', undefined.
Myles, I. A. (2014) ‘Fast food fever: reviewing the impacts of the Western diet on immunity: Discovery Service for Endeavour College of Natural Health Library', Nutrition journal, 13, pp. 1–17. Available at: http://eds.b.ebscohost.com.ezproxy.endeavour.edu.au:2048/eds/detail/detail?vid=16&sid=4219d8a9-bb05-4292-90de-ec641d205bcb%40sessionmgr114&hid=109&bdata=JnNpdGU9ZWRzLWxpdmUmc2NvcGU9c2l0ZQ%3D%3D#db=aph&AN=97078399.
Odle, J., Adams, S. H. and Vockley, J. (2014) ‘Carnitine', Advances in Nutrition, 5(3), pp. 289–290. doi: 10.3945/an.113.005199.
Odo, S., Tanabe, K. and Yamauchi, M. (2013) ‘A Pilot Clinical Trial on L-Carnitine Supplementation in Combination with Motivation Training: Effects on Weight Management in Healthy Volunteers', Food and Nutrition Sciences, 04(02), pp. 222–231. doi: 10.4236/fns.2013.42030.
Padmavathi, S. and Vishwa, M. (2012) ‘Effects of L-Carnitine (Neutraceutical) In Weight Management among Overweight and Obese Adults of Age between 20 – 45yrs – A Comparative Study in Chennai and Tirupathi', International Journal of Scientific and Research Publication, 2(9), p. 5. Available at: http://www.ijsrp.org/research-paper-0912/ijsrp-p0984.pdf.
Pekala, J. et al. (2011) ‘L-Carnitine - Metabolic Functions and Meaning in Humans Life', Current Drug Metabolism, 12(7), pp. 667–678. doi: 10.2174/138920011796504536.
Peters, R. et al. (2019) ‘Common risk factors for major noncommunicable disease, a systematic overview of reviews and commentary: the implied potential for targeted risk reduction', Therapeutic Advances in Chronic Disease. SAGE Publications Ltd. doi: 10.1177/2040622319880392.
Pilitsi, E. et al. (2019) ‘Pharmacotherapy of obesity: Available medications and drugs under investigation', Metabolism: Clinical and Experimental, 92, pp. 170–192. doi: 10.1016/j.metabol.2018.10.010.
Pooyandjoo, M. et al. (2016) ‘The effect of (L-)carnitine on weight loss in adults: a systematic review and meta-analysis of randomized controlled trials', Obesity Reviews, 17(10), pp. 970–976. doi: 10.1111/obr.12436.
Rafraf, M., Karimi, M., Jafari, A. (2015) ‘Effect of L-carnitine supplementation in comparison with moderate aerobic training on serum inflammatory parameters in healthy obese women', The Journal of Sports Medicine and Physical Fitness, 55(11), p. 1363. Available at: https://www.minervamedica.it/en/journals/sports-med-physical-fitness/article.php?cod=R40Y2015N11A1363 (Accessed: 3 January 2021).
Rebouche, C. J. (2004) ‘Kinetics, pharmacokinetics, and regulation of L-Carnitine and acetyl-L-carnitine metabolism', in Annals of the New York Academy of Sciences. New York Academy of Sciences, pp. 30–41. doi: 10.1196/annals.1320.003.
Reuter, S. E. and Evans, A. M. (2012) ‘Carnitine and acylcarnitines: Pharmacokinetic, pharmacological and clinical aspects', Clinical Pharmacokinetics, 51(9), pp. 553–572. doi: 10.2165/11633940-000000000-00000.
Rochlani, Y. et al. (2017) ‘Metabolic syndrome: Pathophysiology, management, and modulation by natural compounds', Therapeutic Advances in Cardiovascular Disease, 11(8), pp. 215–225. doi: 10.1177/1753944717711379.
Sahlin, K. (2011) ‘Boosting fat burning with carnitine: An old friend comes out from the shadow', Journal of Physiology, 589(7), pp. 1509–1510. doi: 10.1113/jphysiol.2011.205815.
Samimi, M. et al. (2016) ‘Oral carnitine supplementation reduces body weight and insulin resistance in women with polycystic ovary syndrome: A randomized, double-blind, placebo-controlled trial', Clinical Endocrinology, 84(6), pp. 851–857. doi: 10.1111/cen.13003.
Sargowo, H. D. (no date) THE ROLE OF L-CARNITINE AND UBIQUINONE ON ENERGY SUPPLY OF CELLULAR MITOCHONDRIA IN CARDIOVASCULAR DISEASE.
Saunders, K. H. et al. (2016) ‘Pharmacotherapy for Obesity', Endocrinology and Metabolism Clinics of North America, 45(3), pp. 521–538. doi: 10.1016/j.ecl.2016.04.005.
Sawicka, A. K. et al. (2018) ‘L-carnitine supplementation in older women. A pilot study on aging skeletal muscle mass and function', Nutrients, 10(2). doi: 10.3390/nu10020255.
Sawicka, A. K., Renzi, G. and Olek, R. A. (2020) ‘The bright and the dark sides of L-carnitine supplementation: A systematic review', Journal of the International Society of Sports Nutrition, 17(1), pp. 1–10. doi: 10.1186/s12970-020-00377-2.
Schulz, H. (2013) ‘Fatty Acid Oxidation', in Encyclopedia of Biological Chemistry: Second Edition. Elsevier Inc., pp. 281–284. doi: 10.1016/B978-0-12-378630-2.00071-2.
Shekhawat, P.S., Sonne, S., Carter, A.L., Matern, D., Ganapathy, V. (2013) ‘Enzymes Involved in L-Carnitine Biosynthesis are Expressed by Small Intestinal Enterocytes in Mice: Implications for Gut Health', Bone, 7(6). doi: 10.1016/j.crohns.2012.08.011.Enzymes.
Stack, M. (2017) ‘The Effects of Chronic L-carnitine and Carbohydrate Supplementation on Body Composition and Athletic Performance in Female Endurance Athletes.', Electronic Theses and Dissertations. Available at: https://digitalcommons.georgiasouthern.edu/etd/1687 (Accessed: 9 January 2021).
Strijbis, K., Vaz, F. M. and Distel, B. (2010) ‘Enzymology of the carnitine biosynthesis pathway', IUBMB Life, 62(5), pp. 357–362. doi: 10.1002/iub.323.
Talenezhad, N. et al. (2020) ‘Effects of L-carnitine supplementation on weight loss and body composition: A systematic review and meta-analysis of 37 randomized controlled clinical trials with dose-response analysis', Clinical Nutrition ESPEN, 37(xxxx), pp. 9–23. doi: 10.1016/j.clnesp.2020.03.008.
Thavorncharoensap, M. (2017) ‘Effectiveness of Obesity Prevention and Control', SSRN Electronic Journal, (654). doi: 10.2139/ssrn.3016129.
Turck, D. et al. (2018) ‘L-carnitine and contribution to normal lipid metabolism: evaluation of a health claim pursuant to Article 13(5) of Regulation (EC) No 1924/2006', EFSA Journal, 16(1), pp. 1–9. doi: 10.2903/j.efsa.2018.5137.
Villani, R.G., Gannon, J., Self, M., Rich, O. . (2000) ‘L-Carnitine Supplementation Combined with Aerobic Training DOes Not Promote Weight Loss in Moderately Obese Women', International Journal of Nutrition and Exercise Metabolism, 10(2), pp. 199–207.
Wadden, T. A. et al. (2012) ‘Lifestyle Modification for Obesity', Circulation, 125(9), pp. 1157–1170. doi: 10.1161/circulationaha.111.039453.
Wall, B. T. et al. (2011) ‘Chronic oral ingestion of l-carnitine and carbohydrate increases muscle carnitine content and alters muscle fuel metabolism during exercise in humans', Journal of Physiology, 589(4), pp. 963–973. doi: 10.1113/jphysiol.2010.201343.
Wang, G. et al. (2020) ‘Intestinal OCTN2- and MCT1-targeted drug delivery to improve oral bioavailability', Asian Journal of Pharmaceutical Sciences. Shenyang Pharmaceutical University, pp. 158–173. doi: 10.1016/j.ajps.2020.02.002.
Wutzke, K. D. and Lorenz, H. (2004) ‘The effect of L-carnitine on fat oxidation, protein turnover, and body composition in slightly overweight subjects', Metabolism: Clinical and Experimental, 53(8), pp. 1002–1006. doi: 10.1016/j.metabol.2004.03.007.
Xu, Y. et al. (2017) ‘L-carnitine treatment of insulin resistance: A systematic review and meta-analysis', Advances in Clinical and Experimental Medicine, 26(2), pp. 333–338. doi: 10.17219/acem/61609.
Zhang, T. et al. (2019) ‘L-carnitine ameliorated weight loss in fasting therapy: A propensity score-matched study', Complementary Therapies in Medicine, 44, pp. 162–165. doi: 10.1016/j.ctim.2019.03.020.
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