Cambodian food appears to be not too beetus inducing either. When I was there I think the fattest person I saw was at most 20 or 30lbs overweight. Still gross obviously, but not a single death fat, and 99% of the people I interacted with were completely normal sized. It was amazing, I would 100% live in Cambodia. Edit: I did not frequent anywhere expats frequent, so there probably are fat Americans/Europeans, I just didn't encounter any.