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A joiner who scoffed more than 8,000 calories a day has shed remarkable 12 stone in just 13 months after ditching his dirty diet to become a personal trainer.

David Steele, 27, tipped the scales at a whopping 26st 9Ibs after gorging on double bacon and haggis rolls, packets of crisps and three tins of energy juice a day.

The foodie says his weight spiraled out of control when he stopped going to the gym after work commitments piled up.