Creatine & Acetyl L Carnitine Energy Plus, 0.51 lb Life Extension L Carnitine, 60X Dr. Conan Shaw Carnitine Metabolon 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 Acetyl L Carnitine aSquared Brands L Carnitine Linus Pauling Institute Oregon State University