A morbidly obese man who scoffed 24 packets of Walkers crisps a day has shed a remarkable 18 stone - after medics told him he was eating himself to death. Mark Hardie tipped the scales at a whopping 31st 1Ib after gorging an entire multi-pack of crisps a day. He also scoffed three burgers a day, 12 litres of fizzy juice and multiple sugary snacks. But when doctors warned Mark, 49, his life was at risk and diagnosed him with Type 2 diabetes, he finally listened - losing an incredible 18 stone in just 18 months.