Summary of Research: Prenatal vitamins may help to lower the risk of autism in children, even for high-risk families. In prior studies, the use of prenatal vitamins, specifically folate (which is taken as a dietary supplement known as folic acid), has been shown to significantly lower the risk of developing autism spectrum disorder (ASD).
Primary Research: Rebecca J. Schmidt, PhD1; Ana-Maria Iosif, PhD1; Elizabeth Guerrero Angel, MS; et al: JAMA Psychiatry. Published online February 27, 2019. doi:10.1001/jamapsychiatry.2018.3901