Dr Clare Bailey, wife of Michael Mosley, is a GP who has pioneered the Blood Sugar Diet approach at her surgery in Buckinghamshire. She has four children.
Dr Sarah Schenker is a registered dietitian and nutritionist. She is the nutritional adviser for the bestselling The Fast Diet Recipe Book (2013) and regularly contributes to newspapers and magazines including the Daily Mail, Top Santé and Glamour as well as shows including This Morning, Watchdog and on BBC Radio.