[Broken_Hippo]

* My only explanation is that they're overnourished on the Standard American Diet. Imagine how much less waste would have to be pumped out of airplanes.*

A lot of folks poop on a schedule: Making sure you don't poop on the plane might very well involve adjusting food for a few days before a flight, depending on how often you poop. Some folks poop multiple times a day, some folks poop a few times a week. Some women poop more during their monthly cycle, too - which, by the way, does not happen at the same time every month nor do you always have notice.

You'd be able to eat not too long before the flight, though, if you are healthy simply because most folks don't process food too terribly fast (but the timing varies). Adjusting what you eat for days just isn't worth it, and not everyone can do this.

Also, not everyone on the flight is going to be American, but the chances are higher if you are taking in-country flights in the US. I personally don't encounter many Americans on flights - I'm often the only one. But then again, I don't live in the US either.

[ThinBold]

But that's exactly the reason why healthy people, whatever healthy means, should starve: If those who can control their asses do so, then there are more toilets available to those in need.