History of obesity research says that scientific groups also operate in a very political way when it comes to the question of dominant scientific paradigms. The scientific establishment had a big role in defending the view that "fat is the culprit", even though it has been known in the literature (~50+ years old) that excess of sugar leads to obesity. It is probably due to the Internet and ease with which people can publish these days that the old view has been virtually overturned in favour of the ill effects of sugar.