There is a diabetes problem with Inuit and Aboriginals that is disproportionate compared to the general population but this only manifested when their diet became westernized.

Our western diet has also degraded over the past 40-50 years as more and more of what people eat is processed, it contains a lot more sugar, and fat has become a bad word when fat is really just one of the best energy sources we can use.

Sweden has moved to a new national health model that includes more fats and less carbs... they have probably researched this more than anyone and were early adopters of the low fat model that has been in place for 40 years and realized that was a mistake.