L Carnitine Benefits 1st Phorm L Carnitine Benefits, Uses, Dosage, Foods, Side Effects Dr. Axe 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: Nutrition, pathology, and health benefits ScienceDirect Amazon.com: DR. MARTIN'S NUTRITION Extra Strength L Carnitine 200 Capsules 1000mg Per Serving Boost Your Metabolism and Increase Performance : Health & Household L Carnitine Linus Pauling Institute Oregon State University