Understanding the Role of Carnitine in TPN and IDPN Therapy 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 L Carnitine Benefits Patients with Hypothyroidism Natural Health Research Understanding the Role of Carnitine in TPN and IDPN Therapy Carnitine HealthyPlace