This study examined the associations between folic acid and multivitamin supplements used by the mother before and during pregnancy and the risk of autism spectrum disorder in offspring.
45,300 Israeli children born between January 1, 2003, and December 31, 2007, were followed up from birth to January 26, 2015, for the risk of autism.
The mother’s who took folic acid and/or multivitamin supplements during and before pregnancy had a lower likelihood of autism in their children.
The researchers concluded:
“Maternal exposure to folic acid and multivitamin supplements before and during pregnancy is associated with a reduced risk of Autism Spectrum Disorder in the offspring compared with the offspring of mothers without such exposure.”