Acetyl L Carnitine 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 Muscle Specific Deletion of Carnitine Acetyltransferase Compromises Glucose Tolerance and Metabolic Flexibility ScienceDirect L Carnitine: Benefits, side effects, and dosage