World's fattest man weighing 584Kg prepares for life-saving surgery after spending seven years confined to a bed

Juan Pedro Franco, who once weighed more than half a ton, has lost a whopping 171kg to go under the knife

The world's fattest man is preparing for life-saving gastric bypass surgery after spending nearly seven years confined to a bed.

Juan Pedro Franco, who once weighed more than half a ton, has lost a whopping 171 Kg to go under the knife.