Carnitine: the claims and why it may not work What Is L Carnitine? How Does It Work? Ever heard of L Carnitine? , It helps your body turn fat into energy, boosts endurance, and speeds up recovery. , You can find it in liquid or capsules (I prefer liquid 1100mg or 3000mg)., If L carnitine with Chromium L CARNITINE 500MG Boost Athletic Performance (2 Bottles) L Carnitin Liquid Lime 500 ml bottle Amazon.com: Allergy Research Group Acetyl L Carnitine 500mg Supplement Metabolism and Energy Support, ALC, Free Form Amino Acid, Vegetarian Capsules 100 Count : Health & Household