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. Mechanisms for Insulin Resistance: Common Threads and Missing Links: Cell L Carnitine: Benefits, Side Effects, And Dosage, Per Dietitians Mitochondrial control of fuel switching via carnitine biosynthesis Science PCOS Nutrition Center L Carnitine (120 Capsules)