Carnitine: the claims and why it may not work L Carnitine For Weight Loss Know Its Benefits And Sources Acetyl L Carnitine (ALCAR) Supplement for Horses Mad Barn Acetyl L Carnitine 500mg Amino Acid Supplement Nature's Best Acetyl L Carnitine (ALCAR) Supplement for Horses Mad Barn What is L Carnitine? L Carnitine is a naturally occurring amino acid derivative that the human body can synthesize itself. It is mainly found in red meat and dairy products. [1] Core Benefits of