Acylcarnitine: Structure, Metabolism, Functions, and Advanced Analysis Techniques MetwareBio L Carnitine helps shuttle fatty acids into the mitochondria (the power plants of your cells) where they can be burned for energy. It's often used in fat metabolism and energy support formulas. Lipolysis Fatty Acid Oxidation and Ketone Bodies The Medical Biochemistry Page Improving diagnosis of mitochondrial fatty acid oxidation disorders European Journal of Human Genetics L Carnitine is Underrated. New Meta Review Reminds Us Why.