L Carnitine Linus Pauling Institute Oregon State University Carnitine Arginine Erectile Dysfunction: What the Evidence Actually Shows Glycine Propionyl L Carnitine and Erectile Dysfunction: What the Evidence Shows 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