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 Did you know L carnitine, a vital amino acid, is naturally produced by your body and found in various foods? While acetyl L carnitine (ALCAR) can be a beneficial supplement for some, most people get The Role of l Carnitine in Mitochondria, Prevention of Metabolic Inflexibility and Disease Initiation Acetyl L Carnitine (ALCAR) Supplement for Horses Mad Barn