Former world’s heaviest man who lost 363lbs to slim DOWN to 867lbs dies aged 48 after years confined to specially-made bed. A Mexican man once listed as the world’s heaviest human being died Monday at the age of 48. Manuel Uribe had slimmed down to about 867 pounds, well below his then-record peak weight of 1,230 pounds, which was certified in 2006 as a Guinness World Record. Uribe’s death was confirmed by an official of the health department of Nuevo Leon state, where the city of Monterrey is located. The official, who was not authorized to be quoted by name, said Uribe had been taken to the hospital on May 2 because of an abnormal heartbeat. He had to be taken to the hospital with a crane by emergency and civil defense workers.After years of diet, exercise and medical care, Uribe, had lost more than 550 pounds by the ceremony. He had hoped to walk down the aisle, but despite his dramatic weight loss, he was transported to the ceremony on a flatbed truck and remained in his custom-made bed. Uribe shed tears during the ceremony and embraced his then-38-year-old bride for a ‘first dance’ but didn’t indulge in wedding cake. ‘He didn’t break his diet,’ Uribe’s mother said.