L Carnitine Advanced Orthomolecular Research Inc. Canada 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 Acetyl l Carnitine Ameliorates Metabolic and Endocrine Alterations in Women with PCOS: A Double Blind Randomized Clinical Trial Advances in Therapy Springer Nature Link Nutrition for Polycystic Ovary Syndrome (PCOS) Foundation for Female Health Awareness