Comment by adrian_b

While you are right that industrial producers could deliver high quality healthy food, when I go to any supermarket and I look at the huge variety of food offerings, after I exclude the raw food ingredients, like fresh or frozen vegetables or fruits or meat, various kinds of seeds or flour or oil, etc., from what remains 99.99% contain various kinds of garbage that I do not want in my body.

Even when such food products are intended to resemble food that I used to eat at home, based on traditional recipes, the modern industrial recipes are very different, with all expensive ingredients substituted completely or partially with worse but cheaper alternatives, and with many extra additives that do not provide any nutritional benefit, but they just improve the texture and taste to resemble that of products made with more expensive ingredients or with ingredients that cause a shorter shelf life.

So in practice, the food producers could, but they don't.