These transformations are tied to the changing American diet. Since the early 1980s, America’s per-person cheese consumption has doubled, largely in the form of mozzarella-covered pizza pies. And last year, for the first time, the average American ate 100 pounds of chicken, twice the amount 40 years ago.
Yeah chicken consumption is going up because it’s almost always the cheapest option in the shelves (here anyway). People aren’t magically all deciding to eat it. It’s what they can afford.