Acetyl L Carnitine 500mg Amino Acid Supplement Nature's Best Amazon.com: NaturaLife Labs Acetyl L Carnitine (ALCAR) 1500 mg per Serving 100 Capsules Non GMO, Gluten Free, Vegan : Health & Household 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 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, L Carnitine Linus Pauling Institute Oregon State University Acetyl L Carnitine Force Factor