Role of L carnitine in Cardiovascular Health: Literature Review Cureus L Carnitine Benefits, Uses, Dosage, Foods, Side Effects Dr. Axe Is L Carnitine Safe? Watch FIRST BEFORE Taking L Carnitine Supplements Acetyl L Carnitine: Benefits and Side Effects Gene Food 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.