Well, we know that high-sugar diets are highly correlated with diabetes. The biochemistry is the interesting part. That being said, there is a lot of easy rese

Well, we know that high-sugar diets are highly correlated with diabetes. The biochemistry is the interesting part. That being said, there is a lot of easy research that never happens. There are a lot of reasons. Funding is difficult to get, and it's hard to get funding to research things that are "obvious". Furthermore, there are a limited number of scientists -- they have to choose what they are going to research.