Amazon.com: Swanson Propionyl L Carnitine with Glycine Natural Supplement Promoting Heart Health & Energy Support May Support Muscle Strength & Endurance (60 Veggie Capsules) : Health & Household Carnitine: the claims and why it may not work Meet L Carnitine a naturally occurring amino acid that plays a key role in helping the body convert fat into usable energy. It works by transporting fatty acids into your cells to L Carnitine Health & Balance Vitamins (USA) Health & Balance Vitamins Comprehensive review of the expanding roles of the carnitine pool in metabolic physiology: beyond fatty acid oxidation Journal of Translational Medicine Springer Nature Link L Carnitine youve probably heard about it, but what does it really do? In this episode of our Supplement Explained Series, Ashwin breaks it down simply: What L Carnitine is How it helps with