> ultimately there are no starving fat people

It has been credibly hypothesized that fat people are indeed malnourished. What would you do if all your food sources were appallingly lacking in essential nutrients and the sorts of things your body craved in order to get fed? You would begin to eat more, and more and more, seeking to satisfy those cravings for nutrition. But if nutritional cravings aren't satisfied, you're still reaching for those foods, because they are faking, very accurately, the tastes and feels that you would get from something that's nutritious and good for you.

So, it stands to reason: the more fake nutrition available to someone, the more they will try and eat, and get fatter. On the other hand, if we're eating real food, perhaps those cravings will be easier to satisfy without overindulging?