Taking the recommended amount of folic acid around conception might help reduce a child’s pesticide-related autism risk. This was concluded by researchers at UC Davis and other institutions after studying moms who took 800 or more micrograms of folic acid.
This conclusion also held in the case of mothers being exposed to household or agricultural pesticides associated with increased risk. Whilst moms should avoid pesticides, for those living near agricultural land, taking folic acid might be a way to counter the effects of pesticide exposure.
Folic acid does reduce the associated risk of autism development, but it does not eliminate the risk in its entirety.
Read more about this study, here: