Top 5 Benefits of CoQ10 and L Carnitine Combination for Athletes iThrive Essentials 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 Carnitine: Benefits, Side Effects, FAQ, Sources, and Dosage L Carnitine L Tartrate: 8 Key Benefits Dr. Lam What is L Carnitine and what does it do? VPA Australia