[mahyarm]

Talking about someones weight really offends people. Or weight loss in general. People mentally shut down about this bad habit vs many other habits, especially women. If people weren't overly sensitive about fatness, that behavior effect you linked about would probably NOT happen.

It's extremely frustrating, because you understand people's eating habits just regress to the mean, and if the 'mean' set by a countries food culture to be absolute shit with huge portions, then a country will get predictably fat.

When I go to a gas station in the USA, every single food is basically candy, high calorie nuts or expensive beef jerky. In south east asia, there are healthier options in the gas station, and often there is some person in a food cart selling home cooked healthy small portion food cheaper than McDonalds will ever be in that country. That is just one example.