Tim Spector is Professor of Epidemiology at Kings College London and one of the world's leading scientists. He is the bestselling author of The Diet Myth, Spoon-Fed, Food for Life, The Food for Life Cookbook and Ferment, and scientific co-founder of ZOE, the gut health science company. A pioneer of microbiome research, he is among the top 100 most cited scientists in the world and was awarded an OBE for his contributions during the COVID-19 pandemic. His Channel 4 documentary series What Not to Eat (January 2026) achieved record viewing figures with more TV to come.