There’s actually a phenomenon where Americans move abroad, and suddenly start losing a ton of weight. Not because they consciously changed their eating habits, but simply because the food that is available in the foreign stores and restaurants is healthier.
American grocery stores tend to prioritize convenience and unhealthy foods. You have to really search to find anything that is worthwhile, even when the store is packed full of food. There’s a ton of variety in American grocery stores, (Europeans are always baffled by the entire aisle dedicated to breakfast cereals), but basically none of it is healthy. So Americans naturally end up buying lots of unhealthy shit, simply because it’s all they realistically have access to.
But then that gets flipped on its head when those Americans move abroad. Suddenly, the stores they’re shopping at aren’t full of junk. And so they naturally start losing lots of weight. Many Europeans assume that Americans are simply complacent with their weight, but the reality is that the entire infrastructure surrounding them is singularly focused on keeping them fat.