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 L Carnitine Linus Pauling Institute Oregon State University Nature's Bounty L Carnitine Amino Acid Supplement, 500 mg30 caplets 1 Each Liposomal L Carnitine+, 90 Vegetable Capsules (500 mg per Capsule)