L Carnitine for Weight Loss: How It Works, Dosage & Best Supplement Zeelab Pharmacy Your body already makes L Carnitine, so why do people take it as a supplement? Because while it helps burn fat for energy, it only works when paired with the right lifestyle., So before you jump on What is L carnitine? Reducing fatigue Life Extension Europe What Is Carnitine and Why Is It Important? The Amino Company L Carnitine L Carnitine 3500 Metabolic Nutrition