Frontiers A machine learning approach for predicting the effect of carnitine supplementation on body weight in patients with polycystic ovary syndrome L Carnitine has become one of the most commonly asked about supplements over the past 18 months and I can see why when looking at all the research that has come out about it over the last 2ish years., Nature's Truth L Carnitine 500 mg Dietary Supplement Thrifty White Health Essentials L Carnitine: Benefits, Side Effects, FAQ, Sources, and Dosage