Acetyl L Carnitine (ALCAR) Supplement for Horses Mad Barn L Carnitine and Creatine are both game changers for fitness, but they each shine in different ways! SAVE this as your quick guide! L Carnitine, found in red meat, fish, and chicken, supports fat Acetyl L Carnitine & Alpha Lipoic Acid Acetyl L Carnitine ALCAR Energy Metabolism Structure of L carnitine and acetyl L carnitine. Download Scientific Diagram Acetyl L Carnitine