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: Nutrition, pathology, and health benefits ScienceDirect L Carnitine Did you know L carnitine, a vital amino acid, is naturally produced by your body and found in various foods? While acetyl L carnitine (ALCAR) can be a beneficial supplement for some, most people get History of L carnitine: Implications for renal disease Journal of Renal Nutrition