Study: Prenatal vitamins may be tied to lower autism risk
Taking folic acid and multivitamins during pregnancy could reduce your child’s risk of autism, a new study suggests.
Kids were less likely to be diagnosed with autism if their mothers took supplements before pregnancy and while they were expecting, according to a study of just over 45,000 Israeli children.
“Reduced risk of [autism] in offspring is a consideration for public health policy that may be realized by extended use of folic acid and multivitamin supplements during pregnancy,” the researchers concluded in the report, published in JAMA Psychiatry.
The international team of scientists, led by Stephen Levine from the University of Haifa in Israel, gathered data on tens of thousands of children born in Israel between 2003 and 2007, and followed their progress until 2015. The team also gathered prescription data, to see whether the kids’ mothers had been prescribed folic acid or multivitamin supplements either prior to or during pregnancy.
Women who took supplements prior to pregnancy were 61 percent less likely to have a child diagnosed with autism, compared with moms who didn’t take supplements, the researchers found. In addition, taking supplements during pregnancy was linked to a 73 percent reduced risk of an autism diagnosis, the findings showed.
But the study cannot prove a direct cause-andeffect link between supplements and autism due to its design, and suffers from some major limitations, said Dr. Ruth Milanaik, director of the neonatal neurodevelopmental follow-up program at Cohen Children’s Medical Center, in New Hyde Park, N.Y. For example, prescription records can’t show whether women follow through and take their supplements, she said. Supplements also are available over the counter, and some of the moms could have purchased and taken them without waiting for a prescription.
“I don’t have a problem with saying folic acid is good for pregnant women. You should not only take folic acid during pregnancy, you should also take folic acid before pregnancy,” Milanaik said.
“But this study does not show that [not taking supplements] is a cause of autism in any way, shape or form.”