A California study suggests that taking prenatal vitamins in the first three months before conceiving and the first month of pregnancy may reduce the risk of having a child with autism by 40 percent.
Forty percent! I’m no expert in autism but that strikes me as big news.
To do the study, researchers collected data from some 700 families with children age 2 to 5 who had autism or normal development and asked mothers whether they had taken prenatal vitamins in the months around conception.
The finding only appeared for women who had taken the vitamins before conception or early in their pregnancies. After the first month of pregnancy, there was no difference in the autism risk between mothers who took vitamins and those who did not.
The mother’s education level and birth year of the child were taken into account so those differences do not explain the study results.
The study appears in the July issue of the journal Epidemiology .
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