pre natal vitamins

out of curiosity - - can a person build up a 'tolerance', so to speak, to pre natal vitamins?

i started taking them to beef up my nails for the wedding and they worked woooonders! after the wedding though, i stopped. like night and day i noticed the difference - my nails haven't grow a bit! i'm don't play on taking them anymore, but i was wondering...if i were to take them and say hypothetically speaking i get preggo, will my body have built up a 'tolerance' to the vitamins?

Don't worry about building up a tolerence. Some women are on them for years with no problem. You start them when ttc, then through pregnancy and continue till you stop nursing. By then its time for the next kid and you never get off them They still work the same. I have noticed my nails aren't as strong as when I fist started them but that's the baby taking nutrients not the vitamins not working as well.

thanks girls! i'll start taking them again, i can't stand how sad my nails look...