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, 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 Spring Valley Acetyl L Carnitine HCI 400 mg + Alpha Lipoic Acid 200 mg Capsules, 50 Count HSA FSA Eligible Walmart.com Acetyl L Carnitine vs L Carnitine: 4 Key Differences Momentous L carnitine for metabolism Lifehack L Carnitine Linus Pauling Institute Oregon State University