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 and Lipoic Acid Erectile Dysfunction NIH Acetyl L Carnitine 500 mg Acetyl L Carnitine and Lipoic Acid Erectile Dysfunction NIH Did you know L carnitine, a vital amino acid, is naturally produced by your body and found in various foods? While acetyl L carnitine (ALCAR) can be a beneficial supplement for some, most people get