WHAT IS L'CARNITINE? L'Carnitine is like a taxi for fat molecules, helping them get into cells to produce energy. It's found naturally in meat and dairy and can help with burning fat, Stop training harder. Start training smarter. If you're hitting the gym but feel like you're hitting a wall, you might be missing one key ingredient: L Carnitine. Think of L Carnitine as the " Didn't another study show carnitine was good for the heart? L Carnitine Benefits, Uses, Dosage, Foods, Side Effects Dr. Axe