Q: I’ve heard about all the horrible things that ultra-processed foods can do to you — but they are everywhere and tough to avoid. Do I really need to be worried about eating them, or is it one more hysterical finding that will fade away? — Cary T., Nashville A: We have been writing and talking about the risks associated with eating ultra- and highly processed foods since the 1990s. They are stripped of nutrients and fiber and contain artificial ingredients that extend shelf life, make them have a better texture or flavor, or allow manufacturers to do things with the ingredients that Mother …