Good Calories, Bad Calories
In his most recent book, Good Calories, Bad Calories: Challenging the Conventional Wisdom on Diet, Weight Control, and Disease, Gary Taubes debunks the infallibility of the conventional wisdom on healthful eating (namely that dietary fat is bad and should be replaced with carbohydrates). He suggests that carbohydrates, and not dietary fat, are to blame for heart disease. Carbs increase insulin production which alters the regulation of fat by the body. Obesity is not caused by an excess of calories, but by a disorder of the regulation of fat tissue and fat metabolism that results when one partakes of excess carbohydrates.
Taubes’ book is compelling. I think it asks some really important questions. It’s neither conclusive nor foolproof. But certainly, I believe, it presents a hypothesis that certainly deserves more study.
Previous research concerning low-fat diets is lacking and often seemed driven by a tidal wave of popular momentum (Taubes’ book is as much about the biases of the science surrounding diet and nutrition as it is anything proscriptive). At any rate, there certainly needs to be more research on nutrition and diets of all kinds. The information that we’ve been fed doesn’t seem to be working for most of us. We need the facts as to what makes good nutrition.
Because it’s nearly impossible to conduct genuinely rigourous nutrition studies, the burden falls on us individually. We are our own lab rats. Its up to us to learn as much as we can about the subject and filter that information through our own behaviors and goals. We’re all going to be different. We are still but anecdotes with different weights and sizes, different food/exercise/leisure behaviors, and different outcome desires. As such, we should ALL be very careful not to be judgmental of others.
Perhaps the most intriguing notion that Taubes presents is that “obesity is a disorder of excess fat accumulation, not overeating and not sedentary behavior.” I think this challenges many of our assumptions, mainly the default position of blaming obesity on gluttony and sloth. Perhaps it’s because of a broad religous tradition that defines such as sins, or maybe it’s a result of a Puritan Work Ethic that is uniquely American, but more often than not obesity is seen as a personal failing. The assumption is that the obese simply lack willpower. If only they were better people, then they would not have the excess weight. But, what if those assumptions are incorrect? Are we willing to change the way we think about food and about the obese? Or, is it a necessary component of the human condition to retain something with which to beat down ourselves and others?
Personally, I can only take Taube’s recommendations so far. I think a lot more work needs to done in the field of nutrition and diet and health. I already eat a fairly conventionally healthy diet–mostly vegetables and fruit, little red meat, not many processed foods. The book reminds me that I should stay away from refined carbohydrates as much as possible. And I should replace bread and pasta with their whole grain counterparts whenever I can. But I cannot dive headlong into the Atkins pool. I can’t become that kind of meateater (Julia Child aside). More importantly, I cannot give up beer. Not now. So, perhaps I will make minor adjustments where possible, but my diet is not going to change that much. At least not right now.
For a general overview of Taubes thesis, see his 2002 piece in the NYT Magazine which was later expanded into the book Good Calories, Bad Calories.



