Dr. George Bray's model of obesity

In July 2008 I posted on Dr. George Bray’s critique of Gary Taubes’ book Good Calories, Bad Calories that appeared in Obesity Reviews.  Included in my post was a copy of Gary’s response.  Now Dr. Bray is back with a rebuttal to Gary’s response to his (Bray’s) original critique.  In conversation, Gary told me he has elected to drop the issue because the discussion is going nowhere.  Gary makes substantive points; Bray obfuscates the issues and will continue to do so.  I, however, am not going to drop the case.  Maybe I’ll have the last word here.

I want to go over Dr. Bray’s response to Gary’s letter in some detail because it is emblematic of all that is wrong with obesity research today and clearly demonstrates why we will never get anywhere until the people of Bray’s generation fade away. I don’t know that I’ve ever seen so many instances of one writer missing the point as often as Dr. Bray does in this short reply.  The entirety of his response is an example of either shoddy thinking or intellectual dishonesty.  Or maybe both. It brings to mind Mary McCarthy’s famous quote about Lillian Hellman: “Every word she writes is a lie, including ‘and’ and ‘the’.

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Skulls in our library. See bottom of post for description.

In 1981 MD and I read a book that changed our lives.  I don’t know why because I didn’t have a particular interest in paleontology or anthropology at the time, but I picked up a copy of Lucy: the Beginnings of Humankind by Donald Johanson.  The book sat around the house for awhile before I found the time to read it, but when I started reading, I couldn’t quit.  It was an absolutely riveting read.

I carried the book with me and read it everywhere.  At the time, I was doing a lot of emergency room medicine, so I took the book along on one of my 24 hour shifts.  As luck would have it, I had a slow night, so instead of sacking out as I would have usually done, making sure I got some shut eye before the inevitable car wreck or gunshot wound showed up to shatter my peace, I read Lucy.  I finished it sometime during the middle of the night and the couldn’t get back to sleep for thinking about it.  I couldn’t wait to get home to MD and tell her about it and force her – at gunpoint, if necessary – to read it.  I couldn’t live with myself if I were this enthusiastic about something and had no one to discuss it with.

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Paleolithic paintings from Lascaux cave in southern France

I imagine most readers of this blog would expect a group of subjects to do better on a Paleolithic diet as compared to a standard American diet, but there are few studies actually making the comparison. One was posted yesterday in the Advance-0nline-Publication section of the European Journal of Clinical Nutrition that shows subjects following a Paleolithic diet made major metabolic changes, and made them rapidly.

Before we get into the study, let’s make sure we’re all on the same page when we discuss the Paleolithic diet. We we say Paleolithic diet, what are we really talking about?

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