How Much L Carnitine for Male Fertility? The 101 Guide 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 L Carnitne, good to take when you want to burn calories and when losing weight. Very important in fat loss Take responsibly #L carnitine #gym #workouts #fat loss L Carnitine 3000 Liquid