multivitamins

I've been using multivitamins for a few weeks now and it's turning my pee different colors I'm no expert on the stuff and maybe you can correct me but it seems like I'm just peeing the vitamins and minerals out of my body and not even getting absorbed does this mean that they're not even...

I know professional bodybuilders use multivitamins but do you think for a normal gym rat this is something that we should be using or do we really not need them? I am a bit concerned because I have been working out for the past 6 months and my results haven't been that good. I'm wondering if...