Carnitine: Genetic Variants Affecting Mitochondrial Energy and Health Supplements don't replace the workbut they can support it L Carnitine helps your body turn fat into usable energy, so you can push harder and recover better. Consistency first. Supplements second. Results The Science of Carnitine: How It Works and Why It Matters L CARNITINE (LEVOCARNITINE) What is it? L Carnitine is a natural amino acid that helps the body turn fat into energy. How it works: Levocarnitine forces fat into the cells to The bright and the dark sides of L carnitine supplementation: a systematic review Journal of the International Society of Sports Nutrition Springer Nature Link