Role of carnitine in disease Nutrition & Metabolism Springer Nature Link 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 effect of (L)carnitine on weight loss in adults: a systematic review and metaanalysis of randomized controlled trials Pooyandjoo 2016 Obesity Reviews Wiley Online Library Effects of l carnitine supplementation on glucolipid metabolism: a systematic review and meta analysis Food & Function (RSC Publishing)