When it comes to ultra-processed foods, they argue, it’s important to study all of their properties to better understand which, specifically, cause people to overeat. What I think people might miss from that narrative is that ultra-processed foods often lack the basic characteristics of healthy foods: UPFs tend to be low in fruits and vegetables and legumes and whole grains. And, in fact, part of the path forward is to better understand: What is it about ultra-processed foods that makes them unhealthy? It’s wonderful on the precautionary basis if you can reduce your consumption of ultra-processed foods. KH: We’re only at the beginning stages of understanding what it is about ultra-processed foods that tends to cause poor health.