Gina Kolata is a hack, even if she does write for the NYT.

Genetic? Sure, I likely inherited this pancreas which responds to the first bite of whatever with TANKER CAR OF INSULIN. Now that I know, using larger and less frequent meals of low carb foods does wonders for me controlling my weight without using nearly the willpower I used to have to exert, constantly.

What about decades of bad nutritional advice? Who is responsible for that?