L Carnitine has become one of our top 5 sellers the last few years and when you review the research, you can see why. L carnitine is a supplement probably more well known if L Carnitine: Benefits, Side Effects, And Dosage, Per Dietitians Effect of Magnesium and Levocarnitine on Metabolic and Clinical Outcomes in Women With Polycystic Ovarian Syndrome (PCOS) TrialScreen Nutrition for Polycystic Ovary Syndrome (PCOS) Foundation for Female Health Awareness Carniphil: PCOS PCOD Problem Treatment , Endometriosis & Absence of Period 9 Best Supplements for Polycystic Ovarian Syndrome (PCOS)