What is L Carnitine? L Carnitine is a naturally occurring amino acid derivative that the human body can synthesize itself. It is mainly found in red meat and dairy products. [1] Core Benefits of A Beginner's Guide to L Carnitine Wonder Paws L Carnitine Foods High in L Carnitine for Energy and Health Marnys L Carnitine vs. CLA: Two popular fat burning supplements, but how do they differ? L Carnitine helps your body turn fat into energy, while CLA targets fat storage and supports muscle preservation. Which one works L Carnitine What Is It? Benefits, Dosage & When To Take MYPROTEIN