Investigating the connections between obesity and weight loss. Examining the scientific reasons why so many diets fail and speaking to some of the leaders of the diet industry. Show more

Jacques Peretti examines the links between exercise and weight loss as he charts the story of the fitness industry. He also sheds light on the search for a safe weight loss pill. Show more

Examination of the weight-loss industry. Jacques Peretti asks why the world's population continues to get fatter, despite the billions that are spent on weight loss every year. Show more