L Carnitine Shows Promise as Supportive Therapy for Autism A clinical trial published in the journal Research in Autism Spectrum Disorders found that l carnitine supplementation may help reduce autism symptoms in children. The Acetyl l Carnitine in the Treatment of Peripheral Neuropathies: A Narrative Review Pain and Therapy Springer Nature Link Acetyl L Carnitine Mark Hyman, MD Role of carnitine in disease Nutrition & Metabolism Springer Nature Link