Understanding the Benefits and Uses of Carnitine in Health and Fitness Fitness Health Supplements and chronic pain: What does the research say? Some studies suggest possible benefits for: Acetyl L Carnitine (energy for cells; studied in diabetic nerve pain) Alpha Lipoic Acid (antioxidant; may ease nerve pain, Carnitine: the claims and why it may not work L Carnitine Force Factor Liquid L Carnitine Energy, Metabolism & Fat Burning L Carnitine Benefits, Uses, Dosage, Foods, Side Effects Dr. Axe