What Is CoQ10 and L Carnitine, and How Can It Change Your Life? iThrive Essentials The Science of Carnitine: How It Works and Why It Matters 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 Understanding the Benefits and Uses of Carnitine in Health and Fitness Fitness Health