Amazon.com: Doctor's Best L Carnitine Fumarate Supplement for Men & Women L Carnitine Fumarate with Biosint Carnitines Capsules, Helps Convert Fat into Usable Energy, Non GMO, Gluten Free, Vegan 60 Veg Caps : L Carnitine fumarate (CAS 90471 79 7) Glentham Life Sciences Propionyl L Carnitine for Erectile Dysfunction: What the Evidence Shows and How to Approach It 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