Glen MattenGlen Matten (MSc NutrMed, DipION) is the author of the award-winning book The Health Delusion and the coauthor of The Sirtfood Diet. With a degree in nutritional medicine, he has made frequent forays into the media spanning TV, radio, ad numerous national magazines and newspapers. With an approach deeply rooted in nutritional science, Glen has run successful clinics across the UK for over a decade. He collaborates closely with medical doctors, attracts clients from all over the world, and works with a number of professional athletes and celebrities. Read More Read Less