no, it isn't going to waste....that is a good sign to be honest...if you are taking a multi with b-vitamins and your pee isn't bright yellow, then the multivit is crap and isn't breaking down in your stomach properly
ie....if you take a centrum vitamin and then the next day you shit out a log with what looks like that same vitamin you took yesterday with about 20% of it missing.....well, sounds sick, but if you break that log a part you will find that that is the centrum vitamin..haha