Japan sits at 6% obesity. The US sits at 43%.
And the biggest reason is environment.
I saw it firsthand traveling to Japan. In 2 weeks there, I rarely saw anyone overweight.
Not because they were dieting. Because of how they lived.
They walk everywhere. Their version of "fast food" has whole ingredients, high protein, rich in fiber. Meals are built around real food by default, not by discipline.
Nobody was counting macros. Nobody had a meal plan app.
There is no body positivity. Being slim is the standard and they take it seriously.
Meanwhile, the most obese countries on this list share the same pattern: car culture, processed food access, sedentary defaults, and acceptance as part of their culture.
You can't move to Japane. But you can build your own environment.
Walk more. Eat real food. Make the healthy choice the easy choice.