The Science of Carnitine: How It Works and Why It Matters 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 doesnt magically burn fat, it helps your body use fat as energy. Combine it with training and consistency, and youll feel the difference @Marybosch shows us how L Carnitine will boost The Role of L Carnitine in Kidney Disease and Related Metabolic Dysfunctions