Acetyl L Carnitine 500mg Cognitive Support Carlson When to take L carnitine: Dosage, forms, and side effects 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 NOW Foods L Carnitine Liquid 1000 mg, Citrus 32 fl. oz. 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