Good Calories, Bad Calories by Gary Taubes
My rating: 5 of 5 stars
My new motto is "145 by July," meaning I would like to trim 50 pounds of fat accumulated over 20 years in approximately six months. In the process, I am hoping to see a reduction in my blood pressure and the level of triglycerides in my bloodstream to a more acceptable level. For anyone who subscribes to the conventional wisdom about dieting, this is a truly Quixotic aspiration.
Gary Taubes, in Good Calories, Bad Calories, attempts to turn the conventional wisdom on its a head. A historian of science and a writer for Science magazine, Taubes argues trenchantly that the fundamental assumptions driving popular wisdom about diet in the United States are based on bad science, and that the studies necessary to draw truly scientific conclusions about diet have not been performed.
Taubes assails the notion that every extra calorie consumed adds to the bulge on the waistline, and that the only way to lose weight is semi-starvation. Rather, he suggests, the root of our modern obesity epidemic is more likely to be found in our consumption of refined grains, refined sugar, and high fructose corn syrup, all of which are comparatively recent phenomena in evolutionary terms.
Taubes posits that weight gain has more to do with hormonal regulation of energy storage than with the simple addition of calories. In simple terms, heavy carbohydrate consumption causes an insulin rush that halts the body's use of fat for energy and encourages the conversion of glucose into fat, which both contributes to weight gain and encourages overconsumption.
Taubes' response is to encourage a high fat, low carbohydrate diet. To critics who suggest that such an approach is fraught with peril in that it increases the risk of heart disease, Taubes argues that the best science suggests that the risk of heart disease has far more to do with being overweight than with the consumption of fat or cholesterol. And, he argues, being overweight has more to do with carbohydrate consumption than fat consumption.
In one sense, Gary Taubes is the Robert Caro of diet writers. His book is so thoroughly researched, tightly written, and copiously annotated that it hard for a layman to contest his assertions. If you find a better explanation of the origin of obesity and effective strategies to counter it, read it.