Having an autistic child is hugely difficult. Doing one simple thing can dramatically reduce the odds of having it happen to you.
A study published this year found that women who took folic acid supplements were 40% less likely to have autistic children. (The ones who got the most benefit started taking the supplement a month before becoming pregnant and continued taking it for the first two months.)
It’s an amazingly easy, cheap, effective way to improve your odds as a prospective parent. A forty percent improvement from a single cheap, common pill.
I don’t have any kids yet, but when my fiancee and I decide to have them, we’re definitely doing this.