Speaking of shit; this smells funny to me:
Although we could probably filter out the toxins before drinking the urine, the toxins are needed because they stimulate a cleansing reaction in the body. Urine, which remember, is a byproduct of our blood, becomes more purified the more it is recycled. Thus, the cleaner the blood is, the cleaner the urine is, and vice-versa. And this is how urine therapy advocates conclude that urine therapy has a cleansing effect on the blood.
Why would someone need to artificially stimulate the need to "cleanse". I don't know about you, but my body seems to take care of that just fine (no piss-drinking required).