Oxidative stress marker aberrations in children with autism spectrum disorder: a systematic review and meta analysis of 87 studies (N = 9109) Translational Psychiatry Frontiers Gut microbiota and autism spectrum disorder: advances in dietary intervention strategies based on the microbiota gut brain axis mechanism 87 studies. 9,000+ children. and most parents have never heard this conversation. A meta analysis of 87 studies involving over 9,000 children found consistently lower glutathione levels and higher oxidative stress in children Brain Region Specific Glutathione Redox Imbalance in Autism Neurochemical Research Springer Nature Link Frontiers Improving Antioxidant Capacity in Children With Autism: A Randomized, Double Blind Controlled Study With Cysteine Rich Whey Protein Impaired synthesis and antioxidant defense of glutathione in the cerebellum of autistic subjects: Alterations in the activities and protein expression of glutathione related enzymes ScienceDirect