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 Carnitine Deficiency: What Is It, Causes, Symptoms, and More Osmosis Nature's Bounty L Carnitine Amino Acid Supplement, 500 mg30 caplets 1 Each Beworths 1500mg Acetyl L Carnitine Softgels, 120 Capsules, Brain Function, Memory, Stamina Walmart.com Acetyl L Carnitine is more thought of as a fat burner. It's actually powerful tool for athletes looking to improve endurance, energy, and mental performance. Here's how you can integrate it into your routine for