What benefits would there be if you did drink your own urine?

If you have recently drank a quantity of treated water, then maybe the first time you drink your own urine it would be fairly diluted and might not harm you. But every time you drink your own urine without replenishing your intake of pure water the salts and other minerals in the urine becomes less and less diluted and more concentrated and will eventually severely dehydrate you and possibly kill you. For this reason very few survival experts recommend drinking urine.