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Prenatal Vitamin Use Associated with Decreased Risk for Autism

In a study of 241 younger siblings of children with autism, the prevalence of autism spectrum disorder (ASD) was 14.1% in children whose mothers took prenatal vitamins in the first month of pregnancy compared with 32.7% in children whose mothers did not take prenatal vitamins during that time. This prospective cohort study analyzed data at the University of California, Davis, from 2017 - 2018. Children whose mothers took prenatal vitamins also had significantly lower autism symptom severity and higher cognitive scores. Additional research is needed to confirm these results; to investigate doses, contributing nutrients, and biologic mechanisms of prenatal vitamins; and to create recommendations for ASD prevention in affected families.



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