Carnitine: Genetic Variants Affecting Mitochondrial Energy and Health 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., PeerJ Effects of L carnitine supplementation for women with polycystic ovary syndrome: a systematic review and meta analysis Frontiers A machine learning approach for predicting the effect of carnitine supplementation on body weight in patients with polycystic ovary syndrome