Research project The Västerbotten Intervention Project (VIP) started in 1992 and is a population-based project in the county of Västerbotten, where the population is invited to their health center for a health examination the year they turn 30, 40, 50 or 60 years old.
They are then also asked to fill in a food frequency form, which has resulted in the largest diet database we have in Sweden. Researchers from many different departments and universities have worked with diet data from VIP.
