August 11, 2011
I'd like to begin by emphasizing that carbohydrate restriction has helped many people lose body fat and improve their metabolic health. Although it doesn't work for everyone, there is no doubt that carbohydrate restriction causes fat loss in many, perhaps even most obese people. For a subset of people, the results can be very impressive. I consider that to be a fact at this point, but that's not what I'll be discussing here.
What I want to discuss is a hypothesis. It's the idea, championed by Gary Taubes, that carbohydrate (particularly refined carbohydrate) causes obesity by elevating insulin, thereby causing increased fat storage in fat cells. To demonstrate that I'm representing this hypothesis accurately, here is a quote from his book Good Calories, Bad Calories:
This alternative hypothesis of obesity constitutes three distinct propositions. First, as I've said, is the basic proposition that obesity is caused by a regulatory defect in fat metabolism, and so a defect in the distribution of energy rather than an imbalance of energy intake and expenditure. The second is that insulin plays a primary role in this fattening process, and the compensatory behaviors of hunger and lethargy. The third is that carbohydrates, and particularly refined carbohydrates-- and perhaps the fructose content as well, and thus perhaps the amount of sugars consumed-- are the prime suspects in the chronic elevation of insulin; hence, they are the ultimate cause of common obesity.There are three parts to this idea. I'll discuss them each separately. I know many people are expecting (hoping for?) a bitter takedown of Gary Taubes, but that's not what's going to happen. I don't feel bitter, but I do think some scientific wrongs need to be righted, for the sake of the ancestral health community as a whole. I also acknowledge that there is a lot of useful information in Taubes's books.
Read more: http://wholehealthsource.blogspot.co...f-obesity.html