A dad told by doctors he would die within five years if he didn't lose weight had shed a whopping 17.5 stone - by talking daily walks and cutting out Coca-Cola.<br /><br />Determined Bryn Penrose, 48, was told by doctors that he risked a fatal heart attack or stroke when he tipped the scales at 30st 5lb<br /><br />But the father-of-three has shed more than half his body weight by increasing his daily steps gradually from around 50 to 21,000 per day.<br /><br />And while he would guzzle six regular cans of Coke a day, he now only drinks water and protein shakes.
