Understanding the Benefits and Uses of Carnitine in Health and Fitness Fitness Health If you're putting in the work but the scale isn't moving, your body might just need a little help tapping into its fat stores. That's where L Carnitine comes in. It's not a The Science of Carnitine: How It Works and Why It Matters L carnitine known as the energy nutrients, provides massive benefits to your heart and works best with Alpha Lipoic Acid. L carnitine is an amino acid that is produced in your body that helps the body turn fat into energy. Carnitine is found in nearly all cells of the body and researchers have Carnitine: the claims and why it may not work