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Fredrick John Stare Professor of Epidemiology and Nutrition and Chair, Department of Nutrition, Harvard School of Public Health, Boston, USA

Prof. Walter Willett is the PI of the Nurses Health Study, created and validated the most widely used food frequency questionnaire in the US, and his textbook on nutritional epidemiology is the classic tool used worldwide to teach diet evaluation methodology and the relation between diet and long-term health and disease. Heike Bischoff-Ferrari was a doctoral student of Prof. Willett from 2002 to 2008, and Prof. Willett collaborated on several of the pilot studies of DO-HEALTH. Prof. Willett will support DO-HEALTH with his large expertise on nutritional epidemiology, his expertise in omega-3 fats and vitamin D and the impact of these nutrients on cardio-vascular and general health. Prof. Willett is also a key collaborator within an ancillary study to DO-HEALTH, which aims to create and validate the DO-HEALTH FFQ (food frequency questionnaire).

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Walter C.
Prof., MD, DrPH
Boston, USA