L Carnitine Benefits, Uses, Dosage, Foods, Side Effects Dr. Axe 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. L Carnitine and L Arginine Tablets Manufacturer and Supplier in India Meet L Carnitine a naturally occurring amino acid that plays a key role in helping the body convert fat into usable energy. It works by transporting fatty acids into your cells to L Carnitine Linus Pauling Institute Oregon State University