If you actually have read "a lot", then you would know it isn't waste at all, nor extreme or crazy, as it's been a known practice in many areas of the world for thousands of years.
"To most people, walking in on someone drinking their own urine would constitute a call to the local psychiatrist"
To most western minds, it is crazy and extreme because we've been raised to believe that it's a dirty waste product. Conditioned beliefs dictate everything, I suppose.
Yes, a healthy Diet and exercise are always top priority, but there are also a number of benefits from urine itself, even if not on a healthy diet.
There is a wealth of information on the support form if you actually want to learn anything.