Martin Gardner writes in Did Adam and Eve have Navels?, in a chapter entitled “Urine Therapy”, “I know of know books defending urine therapy that are not written by persons who also defend other forms of alternative medicine” (2000, p. 99).
It may be worth keeping in mind that anecdotal evidence from folks who live by the water and the writers of Friends isn’t exactly solid medical evidence.
– CH (Who still pees on his feet in the shower on occasion, but more out of sheer laziness than therapeutic necessity)