Manuel Uribe of Monterrey, Mexico once held the title of “World’s Most Obese Man.” Prestigious! Overachiever that he is, though, he’s currently vying to break a new record - that for most weight lost by a single human being:

Uribe, who weighed as much as a small truck at more than half a tonne, is dieting while confined to a reinforced bed that he has not left for the past six years because he is so heavy.

He has lost 518 pounds since March 2006 on a diet of grapefruits, egg-white only omelets, fish, chicken, vegetables and peanuts.

Now weighing 717 pounds — the size of three hefty men — Uribe is still unable to move his swollen legs but hopes to get out of the house next month for only the third time in six years to celebrate his 43rd birthday.

Intriguing. Let’s talk a little more about how fat he is:

“It’s a miracle I’ve got this far. I was going to kill myself two years ago when my wife left me, but God sent me excellent doctors,” said Uribe, his torso still huge with flaps of puffy white skin and sagging, fatty bulges.

Uribe spent the 1990s eating pizzas and burgers in the United States where he worked as a computer repairman. Addicted to junk food, he eventually tipped the scales at 1,235 pounds back in Mexico, bingeing on greasy tacos.

His bulk made him the world’s heaviest man and won him a place in the 2008 edition of the Guinness World Records. Photos of his time in Florida and Texas show the transformation of a once chubby man to a bloated, whale-like figure.

Sensational! But, hey. Know what isn’t bloated and whale-like?:

“I was impotent before, but now everything’s working again. Ask my girlfriend,” he said happily, his Guinness World Records certificate hanging on the wall.

Uribe refused gastric bypass surgery and has instead lost all this weight simply by changing his diet. And getting blow jobs while reading his Guinness certificate over and over. Aw, we kid. We wish him the best of luck, from the bottom of our greasy taco.

World’s most obese man vies for different record [Reuters]