Fast&Up L Carnitine 3000 mg Triple Action Formula for Faster Fat Burn 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 When to take L carnitine: Dosage, forms, and side effects Turn fat into fuel with our L Carnicut As a dietary supplement, one tablespoon (15 ml) of L Carnicut can be taken up to 2 times daily, preferably on an empty stomach.