L-carnitine is a naturally occurring compound that plays a vital role in energy metabolism. It is a derivative of the amino acids lysine and methionine and is found in high concentrations in various tissues throughout the body, particularly in the muscles.
One of the primary functions of L-carnitine is to transport fatty acids into the mitochondria, the powerhouses of the cells, where they can be converted into energy. This makes it an essential nutrient for the metabolism of fats. As a result, L-carnitine has gained attention for its potential role in weight management and athletic performance.
Several studies have investigated the effects of L-carnitine supplementation on exercise performance, suggesting that it may positively affect endurance and reduce muscle fatigue [1].
L-carnitine is also believed to have other potential health implications. It has been suggested that it may support heart health in those with cardiovascular concerns [2]. Additionally, some studies have explored its potential role in blood glucose management [3].
It's worth noting that L-carnitine is naturally present in many foods, particularly animal products such as meat, fish, and dairy. However, it can also be obtained through dietary supplements. Before considering supplementation, it's important to consult with a healthcare professional, as individual needs and potential interactions with medications should be considered.
References:
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Vecchio M, et al. . Clinical Effects of L-Carnitine Supplementation on Physical Performance in Healthy Subjects, the Key to Success in Rehabilitation: A Systematic Review and Meta-Analysis from the Rehabilitation Point of View. Available online: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8628984/
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Nachvak SM, Shabanpur M, Mostafai R, Heidari Moghaddam R, Moludi J . L-Carnitine supplementation reduces biomarkers of inflammatory and oxidative stress in patients with coronary artery disease: a randomised controlled trial. PubMed. Available online: https://pubmed.ncbi.nlm.nih.gov/32816578/
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Fathizadeh S, <span itemprop="et al. . The effects of L-carnitine supplementation on glycemic control: a systematic review and meta-analysis of randomized controlled trials. Available online: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6785772/
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Keri
Keri Filtness has worked in the Nutrition Industry for 19 years. She is regularly called upon for her professional comments on health and nutrition related news. Her opinions have been featured by BBC3, Prima, Vitality, The Mirror, Woman’s Own and Cycling Weekly, amongst others. She has also worked one to one with journalists, analysing their diets and health concerns and recommending changes and additions, where appropriate.
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