Most of the “chemicals” in so-called ultra-processed food aren’t added so customers overeat, they’re added to improve things like shelf-life or product quality (modified starch thickeners).

I’d find it hard to believe there are evil food scientists in big food companies who are nefariously designing food for overeating.

What is more likely is they are creating food that taste good, which shouldn’t surprise anyone. Now if the claim is they work towards this goal without much concern about things like sugar content or glycemic index, I could believe that.

But at the same time nobody thinks eating a whole bag of five servings of Doritos is a healthy food choice. If you’re designing good tasting food and assuming people will eat one serving as a part of a healthy diet, then no nefarious goals are required.