'World's fattest man' loses 644 pounds

Paul Mason underwent gastric bypass surgery in 2010

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Photo courtesy of Paul Nixon Photography.

Paul Mason, formerly called "the world's fattest man," has shed nearly two-thirds of his body weight after gastric bypass surgery in 2010. At his heaviest, the 52-year-old from Ipswich, England tipped the scales at an astonishing 980 pounds.

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Mason used to be so heavy that he was unable to leave his room. When he needed a hernia operation in 2002, the fire department had break down the front wall of his home and load him into an ambulance with a forklift. At that time, he weighed 784 pounds.

That humiliating ordeal was one of many low points for Mason, who became "an object of fascinated horror, a freak show exhibit," reports the New York Times. Now that the 6'4" former postal worker is down to 336 pounds, he's hoping for a second chance at a normal life.

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Mason estimates that he used to eat about 20,000 calories a day, about eight times the recommended amount for an average man. The surgery shrank the size of his stomach to about the size of an egg, leading to rapid weight loss.

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