ONE of the world's finest martial arts experts has spoken about how he drinks urine and what it does for him.

Ultimate Fighting Championships' (UFC) light-heavyweight title-holder Lyoto "The Dragon" Machida is unbeaten.

He was asked by Men's Fitness magazine about his odd habit of drinking urine.

"I feel very well doing this," Machida said.

"It is something I learned from my father when I was young. It really strengthens my immune system, and those who have tried this say there is no harm.

"I really don't recommend it to anyone. It's something my father passed on to me."

The 185.4cm 93kg Machida, from Belem, Brazil, defends his title for the first time against Mauricio “Shogun” Rua at the Staples Centre in Los Angeles on Sunday (AEST).

Originally published as Ultimate fighting champion drinks urine