Sixteen-year-old Ellouise from Newbury weighs in at just over fourteen and a half stone. Together with mum Sarah, she is determined to fight to shed some pounds.

Eighteen-year-old William, who is autistic and has eaten the same lunch of burger and chips every day for two years, goes on a tailored diet to reduce his calorie intake by half.

Sixteen-year-old Anna from Warrington weighs in at almost sixteen and half stone and her appetite has got out of control, while mum Sarah is the perfect partner in crime.