All the offices I've worked in here in America, probably more than half (myself included) of the overpaid nerds were overweight.

Sure if you go to the marketing department, that's probably not the case, but that's just because marketing won't hire you if you aren't pretty. We're not so picky over here in Engineering.

Eating healthy does take time and effort and some knowledge, but it doesn't take that much money. Assuming you have access to a stove, healthy food can be had for cheap. Chicken? cheap. rice and beans? cheap. Vegetables? yeah, those are pretty cheap too.

I keep hearing this, and I keep thinking it's complete BS.

I would be quite happy to show you plenty of fat folks with above-average incomes. In fact I'm sure I could find a bunch of them on this board.

Historically and for most of the world's population, your economic condition would prevent you from being fat. Poor in the US are so well-off, they can afford to be overweight.