Extremely interesting discussion. cGullet does get better and better everyday---mind you it's been like three days since I found you people. :-) This whole issue of fat and diet is extremely interesting to me. I'm definitely on the thin side. I eat anything I want and have never dieted even once. Yes, I guess I am blessed with good genes. But is that all? I don't think so. As Fatguy said in a few posts back, only a small percentage of obese people actually have glandular issues that cause the weight---and I've seen a number of studies that have the same assertion. I think we're pretty safe to assume that the surge in the number of obese people is a result of lifestyle. And I'm not saying that we should just all blame the stupid fat folks here. Lifestyle by no means imply deliberate choice. People don't choose the be fat. They are fat because they live in the kind of society in which it is difficult to stay thin. You can think of it as something akin to Bordieu's term "Habitus". Yes, he used it to explain high minded stuff like society and the question of free will and such, but in a way it is completely applicable here. A Habitus is a general set of disposition common to a class. Fat people in the US, for example, though exercising their free will, are bounded by what is available and economically feasible for them to eat. Not to mention the cultural propensity toward less activities, and larger portion sizes. Going into any restaurant or browsing in any supermarket, one has to concede that it is really difficult to eat "well" in this country. Yes there are lots and lots of Low-fat this, Non-fat that, but very little of these foods are in any way a balance meal. And I'm not talking of inherently good or bad food here, but food that are so proportionally high in fat, carbohydrate, sugar, salt, etc, as to throw any healthy body out of whack! And here I'm not speaking of us "gourmets". We, with our organic produce and artisanal cheese, are in no way a microcosm of the food world. Wonder bread and Hamburgur Helper is. And of course there are people who, despite their intellect and the lack of Hamburger Helper in their lives, simply relish the joy of food, perhaps a bit much, and so end up on the wee bit heavier side of the scale. As they say in Seinfeld--not that there's anything wrong with it! I mean, joking aside, there's a huge difference between being clinically obese and just plump, isn't in. Being plump is not a problem, being so obese as to be diabetic, in danger of heart disease, etc, is! This "Fat Habitus" carries into the ways in which we deal with food and with getting "fat". The culturally induced reaction to getting fat is getting on a diet--which or course is the worse thing ever to do to your body. When you suddenly deprive your body of food, our body goes into starvation mode--as in use as little fuel as possible, thanks to our evolutionary instinct to stay alive. And when a diet fails, as it inevitably will, your body is now inundated with excess calories, but it's still in starvation burn-as-little-as-I-can-get-away-with mode. And you know where this ends.