The answer is no. I read a great article in Reviews in Obstetrics and Gynecology. Take the time to read it because it talks about how one important difference among prenatals is the source of folic acid.
Just click here and you can read it: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3250974/
Then after reading it, you’re going to do what I did and you’re going to ask, which prenatals contain L-Methylfolate? So then I found this source: http://www.empr.com/prenatal-vitamins/article/125903/. You can find the prenatals that contain L-methylfolate. Or you can just buy L-methylfolate separate from your prenatal.
Hope this article helps!