L Carnitine Understanding the Role of Carnitine in TPN and IDPN Therapy L Carnitine Linus Pauling Institute Oregon State University History of L carnitine: Implications for renal disease Journal of Renal Nutrition 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