The featured article/podcast has the person presenting define "ultra-processed foods" as industrial hyper-palatable foods.

However, it focuses more about how the foods were marketed, and in particular, that the same marketing playbook developed by tobacco companies to market Marlboro and Camel cigarettes was then used to sell Kool-Aid and Miller beer.

Basically, the execs at Phillip Morris and R. J. Reynolds realized that beer, Kool-Aid/sugar drinks, Oreos and cigarettes were more or less all the same type of products - affordable, habit-forming small luxury goods people enjoyed putting in their mouths, and applied the expertise they'd developed on one type of this market (cigarettes) to the rest of it.