RESUMO
Background: Autism Spectrum Disorder (ASD) is a part of Neurodevelopmental disorder. There is still research going on the causes of ASD and how to treat it. Current pharmacological treatment fails to completely cure the primary symptoms and can have marked adverse effects in children with ASD. There are non-pharmacological modes of treatment of autism which includes dietary modification. They are likely to be beneficial to some individuals with ASD and generally have a low risk of adverse effects. Objective: To review various studies on the above subject using Google Scholar and Pub Med. Discussion: Several studies have provided evidence about non-conventional treatment including dietary interventions for ASD. Conclusions: This review provides an overview on the role of dietary modifications, nutritional and vitamin supplementation in the patients with ASD.