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 Meet L Carnitine a naturally occurring amino acid that plays a key role in helping the body convert fat into usable energy. It works by transporting fatty acids into your cells to Amazon.com: Doctors Best Acetyl L Carnitine 1000 mg Per Serving Acetyl L Carnitine Supplement for Men & Women, Supports Brain & Nerve Cell Function, Mental Focus, Helps Generate Cellular Energy 120 Veg L Carnitine