I haven't listened to it yet, but the show description is a doozy:
... Considering I’ve interviewed other big-name vegan advocates before such as Dr. Dean Ornish and Dr. Neal Barnard, I fully intended to treat Dr. McDougall with the same respect and civility that I do with all of my invited podcast guests. That’s why it was disappointing when Dr. McDougall decided to turn hostile, shutting down any discussion that he didn’t want to engage in (i.e. he didn’t want to hear anything about the negative impact refined carbohydrates have played on the metabolic health of modern people) and personally lodging attacks against me. What I found most ironic was how he continued to cite me as an example of why people shouldn’t do low-carb, but then says I’m merely “a study of one” when I share how good my weight and health are. Too funny!
I should mention that he did not treat Dr. Ornish or Dr. Barnard with respect and civility. Dr. Barnard ignored the rudeness and Dr. Ornish finally politely ended the interview.