L Carnitine: A Fat Loss Myth or Supplement Staple? L Carnitine Linus Pauling Institute Oregon State University L Carnitine is not a magic fat burner It won't melt fat, build muscle, or replace hard work. The only thing it burns is your money Stick to the basics EAAs During Fasting: Does It Break Your Fast? L Carnitine Injections: Before and After Results 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.