A new study published in the journal Epidemiology found that women who take prenatal vitamins for three months before conception and in the first month of pregnancy may have reduced the risk of their child developing autism by 40 percent. Autism is the spectrum of developmental disorders that affects an estimated 1.5 million Americans or one out of every 250 births.
The study found that women with gene variants that affect how they metabolize folate are more than 7 times more likely to have an autistic child if they do not take prenatal vitamins. Methylenetetrahydrofolate reductase (MTHFR) is one such gene variant, and it is detected with a simple blood test. All prenatal vitamins contain the B vitamin folate, or its synthetic form folic acid.
(image via: http://blogs.babble.com/)