High levels of ultra-processed foods linked with early death, brain issues.
I found that for me, it was much easier to cut out highly-processed foods altogether (I went on a whole-food non-animal diet) that it was to "cut back." By cutting them out altogether, I lost my taste for them in just a few weeks.
"Ultra-processed foods are ready-to-eat/heat industrial formulations made mostly or entirely from substances derived from foods, including flavors, colors, texturizers, and other additives, with little if any intact whole food."
That's the definition from a BMJ study of the effects of UPF on all-cause mortality (not good).