L Carnitine vs Pre Workout: Which supplement actually works better before exercise India Today Pre Workout+BCAA+L Carnitine iGenetics Nutrition When Should You Take L Carnitine? MuscleTech 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 When to Take L Carnitine Mr Supplement Australia