Biomedical Therapy for Autism Psychiatry Advisor L Carnitine in the Treatment of Psychiatric and Neurological Manifestations: A Systematic Review Frontiers Gut microbiota and autism spectrum disorder: advances in dietary intervention strategies based on the microbiota gut brain axis mechanism According to a randomized, double blind, placebo controlled clinical trial published in Elsevier journal Research in Autism Spectrum Disorders (2013), l carnitine supplementation demonstrated a significant therapeutic benefit in children diagnosed with ProCaps Laboratories Acetyl L Carnitine 400 Comprehensive review of the expanding roles of the carnitine pool in metabolic physiology: beyond fatty acid oxidation Journal of Translational Medicine Springer Nature Link