What happened when ultra-processed foods were matched for calories, sugar, fat, and fiber content in the first randomized controlled trial? In the United States, “junk food” is often used to describe less-healthy foods, like candy, ice cream, and chips, but there isn’t a consistent definition, so nutrition researchers came up with the concept of ultra-processed. The term “ultra-processed food”—if you want to call it that—describes industrial formulations that are typically seen in those long list of ingredients, which, besides salt, sugar, and fat, aren’t typically found in any cookbook, like va...