they brought that same mentality to food

Recall reading similar about laboratory kitchens within major food companies. The goal is to engineer desire not satiety. It's why the ingredients on so many "foods" look like a page from an chemistry book. Doritos & Cheetos mentioned and that the seasoning blend and carb structure engages pleasure centers in brain so you want to eat one after another even after you are full.

Same for every fast food offering, processed meat, ice cream, boxed cookies, chips, and on & on. I gave up junk food 5 years ago and although I do not smoke would liken the cravings upon quitting as similar. It was 4 weeks of struggle. And now it's remarkable when I do get something. The desire immediately returns to order the same thing again. I can resist easily knowing what is going on.