A lot of comments blaming this on high-carb, sugary foods, but it has to be more than that. Carbs and sugar intake started falling in 2000 and has fallen every year since[1]; this is not happening because people can't control themselves around delicious foods. Obesity continues to stubbornly rise despite the fact that we, as a nation, have all started to eat in ways that are supposed to be healthier. Something else is going on.
[1] https://slimemoldtimemold.com/2021/07/11/a-chemical-hunger-p...