In the final programme, Cherry meets young people who are dangerously obese and the surgeons who are treating them. Clair gained weight through a combination of stress and medication and has now developed a range of obesity-related illnesses like gout, asthma and bad joints and is on more medication than your average OAP. Clair is having gastric bypass surgery, a major and irreversible step as a last ditch resort to control her obesity. Tom also gained weight through medication and developed non-alcoholic liver disease. To cure his condition, he has been fitted with a gastric balloon to try and shed some of his 22 stone and six months on he has already lost five stone.