This article has a pretty good history of how the research has evolved: https://www.newyorker.com/magazine/2025/01/13/why-is-the-american-diet-so-deadly https:/

This article has a pretty good history of how the research has evolved: https://www.newyorker.com/magazine/2025/01/13/why-is-the-american-diet-so-deadly https://www.newyorker.com/magazine/2025/01/13/why-is-the-ame... The latest conclusion seems to be that the deadly combo is ultra processed foods with high calorie density. That’s what causes us to overeat garbage. Ultra processed low calorie foods are often still junk, but not what is killing us.