Whenever the latest dieting fad comes along, those promoting new theories are well fed on the proceeds, while many people trying to shed pounds are left wondering why nothing seems to work. Meet Giles Yeo, geneticist and presenter on BBC’s Trust Me, I’m a Doctor, who has spent 20 years researching the brain’s relationship to food intake. In his book Gene Eating, he describes his work and why he’s determined to break this cycle. Hear all about it in this live recording from the Edinburgh International Book Festival 2019 chaired by Ruth Wishart.