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, Source Naturals Acetyl L Carnitine & Alpha Lipoic Acid Simple Truth Alpha Lipoic Acid & Acetyl L Carnitine HCl Capsules, 60 ct Jay C Food Stores KAL Acetyl L Carnitine and Alpha Lipoic Acid Tablets, 60 ct Fry's Food Stores