AS IT IS Nutrition L Carnitine Capsules L Carnitine Benefits, Uses, Dosage, Foods, Side Effects Dr. Axe Meet L Carnitine a naturally occurring amino acid that plays a key role in helping the body convert fat into usable energy. It works by transporting fatty acids into your cells to Amazon.com: Force Factor L Carnitine Supplement, Liquid L Carnitine 3000 mg to Help Turn Fat Into Energy, Support Muscle Recovery, and Boost Cellular Energy, Maximum Strength, Non GMO, Orange Flavor, 16 Oz. : Health What Is L Carnitine? L Carnitine Benefits, Dosage & When To take? MYPROTEIN