There can be more than one cause for a trend increasing. The way to look at it would not just be to observe anorexia but also whether or not there has been an i

There can be more than one cause for a trend increasing. The way to look at it would not just be to observe anorexia but also whether or not there has been an increase in the merely underweight in the same time frame as the obese. People who eat and are just sated with very little intake. I am not aware of any data on this. > Most likely explanation is that they are eating foods that aren't satiating and that are high calorie, foods that weren't common in the past. Like I said earlier, people who are eating simple foods like the ones I listed don't get fat. And as I said I don't think this stands up to scrutiny, and I said why already. Additional: obesity is increasing in wild animal populations too. On a personal level, I have eaten diets of only foods like you've mentioned and I would still have gone well over my calorie limit if I had done so until sated. As far as I can tell 'satiating foods' is a term with no real science behind it. Believe me, if I was aware of something aside from hardcore stimulants that would actually keep my appetite in check I'd have been eating it for the past 15 years instead of suffering.