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 Amazon.com: NaturaLife Labs Acetyl L Carnitine (ALCAR) 1500 mg per Serving 100 Capsules Non GMO, Gluten Free, Vegan : Health & Household L Carnitine Benefits, Uses, Dosage, Foods, Side Effects Dr. Axe Acetyl L Carnitine: Benefits, Forms, Dosing, and Side Effects Dr Brad Stanfield