"The thinking on this has completely inverted in the past 5 years."

Has it really?

I see a lot of new contradictory results, but I am not aware that the medical consensus has changed (yet). I have seen articles blame fat as the, blame carbs as the bad guy and even some blaming protein. Refined sugar does seem to be particularly bad, but I have yet to see anything conclusive about carbohydrates as a food group (I searched pubmed a few months back).

Personally I am more confused than ever.