Amazon.com: THORNE Acetyl L Carnitine 500 mg Supports Brain Function, Mood & Healthy Nerve Sensations in the Hands & Feet* Third Party Certified Gluten, Dairy & Soy Free 60 Capsules : L Carnitine Acetyl L Carnitine (ALCAR) Supplement for Horses Mad Barn 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