Just wanted to add...my doctor really wants me to take the prenatal (prescription) that he gave me. I had trouble tolerating it, and the nurse told me that I can take my folic acid prescription and Flintstones...but honestly, I'm pretty positive that my doctor really wants me to take the prenatals, so I'm doing my best with that. I think it's because I don't have a balanced diet at ALL! But, even if I did, the baby takes a lot from you, so it is important to take the prenatals. Folic acid is the most important, I believe.