Creatine & Acetyl L Carnitine Energy Plus, 0.51 lb Life Extension What is carnitine? Carnitine is produced in the body from the amino acid lysine and naturally occurs in some foods. It supports energy metabolism and muscle function, which are important factors in Acetyl L Carnitine 500 mg, 100 capsules Life Extension Amazon.com: Nutricost Acetyl L Carnitine (ALCAR) 500mg, 180 Capsules, 180 Servings Non GMO and Gluten Free, 1 Capsule per Serving : Everything Else Benefits of L Carnitine for PCOS Landys Chemist The Role of l Carnitine in Mitochondria, Prevention of Metabolic Inflexibility and Disease Initiation