Mimi Spencer is best known for co-authoring the best-selling The Fast Diet with Dr Michael Mosley, which introduced the concept of 5:2 intermittent fasting to the world. The Fast Diet has sold over a million copies worldwide, with translations into more than 30 languages. Mimi went on to write The Fast Diet Recipe Book and Fast Cook.

Mimi's background is in lifestyle and style journalism, with an early career as a fashion writer for Vogue, the Evening Standard and then as editor of ES Magazine. She has been a columnist for You Magazine (Mail on Sunday), Observer Food Monthly and Waitrose Kitchen, while also writing lifestyle, fashion and food features for The Times and many national magazines.

Mimi, 49, lives in Brighton with her husband and two teenage children.