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 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 ameliorated fasting induced fatigue, hunger, and metabolic abnormalities in patients with metabolic syndrome: a randomized controlled study Nutrition Journal Springer Nature Link Intermittent Fasting: Benefits, Tips & How It Works