5x5 - Supersize vs Superskinny

Head to head in the Feeding Clinic are Jo from Staffordshire and Emma from Lincolnshire. Former anorexic Rosemary recounts her story, from the depths of the disease through to her amazing recovery. And in Evansville, America's fattest town, Dr Christian witnesses life-saving surgery for the super obese, meeting the bariatric surgery team who perform the very latest gastric bypass operation.