I love how they say "extra sugar" implying the problem is sweet and/or white stuff only.

Fact: we eat far too much carbohydrate, not enough fat and protein
Fact: the problem is not only added sugars, but starches (even brown ones) too.

Still, a great article. It offers conclusive evidence that type of diet (low fat) does cause insulin resistance just as much as how you eat (too much).