Researchers examined 241 children with older siblings who had autism spectrum disorder and found that only 14.1% of those born to mothers who received prenatal vitamins during the first month of pregnancy developed ASD by age 3, compared with 32.7% of those whose mothers didn't take the vitamins. The findings in JAMA Psychiatry also showed that prenatal vitamin exposure was linked to improved cognitive scores and less severe symptoms among those who developed ASD.
Early prenatal vitamins may reduce odds of ASD in high-risk youths
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