Frontiers Dietary supplements in polycystic ovary syndromecurrent evidence Full article: Improved insulin sensitivity and reproductive profile in overweight obese PCOS patients undergoing integrative treatment with carnitines, L arginine, L cysteine and myo inositol There's a reason L carnitine keeps showing up in PCOS research Because PCOS is closely tied to insulin resistance, inflammation, and metabolic dysfunctionand L carnitine plays a role in energy metabolism and fat utilization. Effects of integrative administration of acetyl L carnitine, arginine, and Co Q10 in mitigating oxidative stress in over weight obese PCOS women