Taking folic acid and multivitamin supplements during pregnancy may significantly lower the risk of autism spectrum disorder (ASD) in children, according to a study conducted by Australian researchers. The team carried out a so-called umbrella review—a high-level analysis that evaluates evidence from multiple systematic reviews and meta-analyses—to determine whether prenatal vitamins play a role in autism prevention . After screening 1,388 scientific reviews and narrowing the pool to eight high-