Focus on Obesity

Dr Xand van Tulleken explores possible negative effects of carbohydrates on health.

Dr Javid Abdelmoneim and four overweight volunteers put crash dieting to the test.

Hugh Fearnley-Whittingstall goes on a mission to confront the obesity crisis.

Chris Bavin reveals the latest scientific research on obesity.

A specialist pathology team conducts a post-mortem on the body of a 17-stone woman.

Five obese people who talk in raw detail about what it's like to be obese - while naked.

Michael Mosley examines the powerful science behind the ancient idea of fasting.

A no-holds-barred look into the world of plus-sized love and sex.

Michael Mosley and Dr Chris van Tulleken investigate omega-3 supplements.