@MaryAnn,
Taubes is wrong there. Guyenet is much better informed. Taubes has provided a great service with his debunking of the low fat/choesterol research but he doesn't fully understand blood sugar, insulin resistance, and their relationship to obesity, and he has found himself in a situation where career-wise he is so invested in the thesis he propounded a decade ago, that he can't really back away from it. At least, that's my take on it.
That said, Taubes is a fine, very intelligent person and one who is very open to dialogue with people who don't agree with him, including me. In this he is unlike his followers online who are obsessive fanatics. It is those followers, not Taubes who respond so rudely to Guyenet.
I have had private dialogues with both of these men in the past. Guyenet graciously reviewed something I published, giving me very detailed feedback, which was very helpful to me in making my book much better. Taubes and I have exchanged long lists of research papers. So I appreciate both these men and greatly respect their contributions. I just find that my reading of the data leads me to believe that Guyenet has it right about insulin and obesity and Taubes does not. OTOH, I don't agree with several other of Guyenet's convictions. I do think he is 100% right about the omega 6 oils, though.
These differences of opinion, when grounded in research, are illuminating for all of us. I could do without the diet fanatics who just quote Fearless Leaders, though.