L Carnitine. Boost Weight Loss & Improve Heart Health L Carnitine in the Secondary Prevention of Cardiovascular Disease: Systematic Review and Meta analysis Mayo Clinic Proceedings 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. 7 Benefits of L Carnitine Infographics Medicpresents.com Early research into L carnitine was often cited as underwhelming, showing negligible changes in muscle carnitine content and fat loss outcomes. However, these findings may have been limited by a short study window L Carnitine Side Effects & Safety: A Complete Guide The Science of Good Health