Because ultra-processed foods have become a major consumer market and people are taking them in huge quantities.

https://badgut.org/information-centre/health-nutrition/ultra...

    pop and fruit drinks
    sweetened yogurt
    sweet or savoury packaged snacks (e.g., cookies)
    candies and cake mixes
    mass-produced packaged breads and buns
    margarines and spreads
    breakfast cereals
    cereal and energy bars
    energy drinks
    instant soups, sauces, and noodles
    poultry and fish nuggets, hot dogs
    many ready-to-heat products: pre-prepared pies, pasta, and pizza dishes