A mum told she was "the biggest girl" on the football field at school lost seven stone by walking an hour a day.
Mallory King, 32, tipped the scales at 15st 7lbs and was a US size 18 after growing up "living off" fast food and using food to cope with her parents' divorce.
She had a "wake up call" after being told by doctors she'd end up with the same health problems as her family if she didn't change her lifestyle.
Mallory managed to lose 7st 2lbs in 18 months by calorie counting and walking up to an hour a day.
Since then the mum has gone onto have her son, nine, and daughter, two, and now maintains a healthy weight of 11st 3lbs and a US size eight.
