L Carnitine Benefits, Uses, Dosage, Foods, Side Effects Dr. Axe 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 Want more energy while supporting fat burn? Let's talk L Carnitine! This week's highlight: L Carnitine A powerful supplement that helps your body turn fat into usable energy supporting weight loss, L Carnitine Uses & Benefits Explained: A Complete Guide The Science of Good Health