Tim Spector is Professor of Genetic Epidemiology at King’s College London and Director of the TwinsUK Registry, which has one of the world’s richest data collections on 11,000 twins.

He is ranked in the top 1% of most cited scientists and has written several books, including The Diet Myth: The Real Science Behind What We Eatand Identically Different: Why You Can Change Your Genes.

In The Diet Myth Spector explores the complex relationship between our genes, the bacteria in our digestive system, and the food that we eat and believes this will revolutionise our understanding of nutrition.