Jacques Peretti investigates the connections between obesity and weight loss, confronting some of the men making a fortune from our desire to become thin.

You Are What You Eat: A Twin Experiment
Celebrity Fit Club UK
Why Do I Put on Weight?

The Way Down: God, Greed, and the Cult of Gwen Shamblin
Michael Mosley's Science of You
What Not to Eat: Supermarket Swaps

What's the Right Diet for You? A Horizon Special

Fat Friends
The Diets That Time Forgot

The Biggest Loser

What Not To Eat

You Are What You Eat