Research Spotlight: The potential role of L Carnitine in children with autism., Good news! Carnitine is one of the ingredients in our Multi Spectrum Complete multivitamins, specifically designed Acetyl L Carnitine 500mg Cognitive Support Carlson Best Autism Supplements and Vitamins Autism and Supplements Grateful Care ABA Can Lcarnitine be used as a treatment for a child with autism spectrum disorder (especially if a metabolic or mitochondrial abnormality is suspected), and what dosing and safety monitoring are recommended?