Juan Manuel Marquez and Lyoto Machida are both advocates of drinking their own urine (which isn't to say they are advocates of you drinking their urine). They both think that urine contains nutrients the body can use rather than waste. Well, that's one theory. Here is a more professional opinion: http://mmajunkie.com/news/16187/ask...lly-benefit-from-drinking-their-own-urine.mma