L Carnitine in the Secondary Prevention of Cardiovascular Disease: Systematic Review and Meta analysis Mayo Clinic Proceedings L carnitine tartrate supplementation in the fight against infectious disease If you are like a lot of people, you may have never heard of carnitine but this important nutrient is critical for our body's ability to optimally burn fat required for energy. L Carnitine vs L Arginine: Understanding Their Differences and Benefit Fitness Health