Good question, great articles, thanks for the links. I have followed this very closely for years and believe there are a few great landmark papers that have stood the test of time in a sea of noise and confusion.
The noise comes from how much money and incentive the food companies have and how well they craft the messages we so badly want to believe about miracle foods and supplements.
When a landmark study is rigorously done over years without food company funding, the results are too boring to make the popular press: eat vegetables, fruit, beans... Your mom nagged you about that growing up and you didn't want to hear it then either.
There is an area of good science related to nutrition that is very exciting and pretty fascinating though: