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, Acetyl L Carnitine 500 mg L Carnitine Liquid 3300mg Triple Strength Fat to Energy Alvista Official Spring Valley Acetyl L Carnitine HCL and Alpha Lipoic Acid Capsules 50 pcs Price Acetyl L Carnitine (500 mg) w Alpha Lipoic Acid (200 mg) Robinson Pharma, Inc.