Two years ago, Sharon Hill featured in C4’s Shut-Ins: Britain’s Fattest People. At the age of 33 she weighed 46 stone, and was virtually confined to her house, as was her husband Andrew, who cared for her.

Sharon lost an incredible 14 stone after life-changing bariatric surgery – but as this follow-up, Britain’s Fattest Woman, reveals, the weight began to go back on.

Will a second operation be more successful?