Understanding the Benefits and Uses of Carnitine in Health and Fitness Fitness Health L Carnitine, 500 mg, 30 vegetarian capsules Acetyl L Carnitine 500mg Amino Acid Supplement Nature's Best Levocarnitine, commonly known as L Carnitine, is a naturally occurring compound that the body produces from the amino acids lysine and methionine. It plays a critical role in energy production by transporting fatty