Role of carnitine in disease Nutrition & Metabolism Springer Nature Link 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. Comparison of short term and long term effects of peroral L carnitine intake: clinical implications of elevated TMAO levels in cardiovascular complications L Carnitine Oral Bioavailability NOW l Carnitine Supplement The Science of Carnitine: How It Works and Why It Matters