L Carnitine with Apple Cider Vinegar What Is L Carnitine? How Does It Work? iSatori L CARNITINE Fat Loss Swanson Ajipure L Leucine 500 mg 60 Capsule L Carnitine is one of the most hyped weight loss supplements online but here's what most won't tell you: Your body naturally produces L Carnitine using amino acids l, and a healthy person usually Twenty Four Weeks of L Carnitine Combined with : Annals of Nutrition & Metabolism