I .H.A.V.E to take my prenatals with a meal or i'll get sick. I wouldn't even attempt to take them on an empty stomach at night. I wake up like 4 times to potty and .K.N.O.W I would vomit one of those times. Once you vomit once from a prenatal, prepare for a fuuuun time. I made the mistake of taking one with a bowl of ceral, then taking a nap and the rest of my day was ruined!!!!!! I was like 12 weeks when that happened. I continued to take them though.
The ones I have chosen actually .D.O affect my baby. They contain high levels of folic acid, omega 3, omega 6, and iron. All of these contribute to the weight and development of my baby. I would suggest you tell your .Dr about not taking them. If you feel that it is no big deal, than so should your .Dr right??
I highly doubt they (.Dr's)s would push the prenatals if they were uneccessary.
Just my opinion though....
Sarah