l carnitine: Nutrition, pathology, and health benefits ScienceDirect Carnitine: Genetic Variants Affecting Mitochondrial Energy and Health L Carnitine Linus Pauling Institute Oregon State University Risk of cardiomyopathy and cardiac arrhythmias in patients with nonalcoholic fatty liver disease Nature Reviews Gastroenterology & Hepatology 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.