L Carnitine and Weight Loss: Does This Fat Burner Really Work? Health Guide Does L Carnitine Work for Weight Loss? What the Science Says 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 L Carnitine Nature's Answer L Carnitine doesnt magically burn fat, it helps your body use fat as energy. Combine it with training and consistency, and youll feel the difference @Marybosch shows us how L Carnitine will boost