Liquid L Carnitine Energy, Metabolism & Fat Burning L Carnitine Benefits for Fat Burning and How to Use ICONFIT L Carnitine and L Arginine Tablets Manufacturer and Supplier in India 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.