Our chemically created foods are likely killing us in a variety of ways we are only just now beginning to understand.
The broad goal of FDA regulations is not really to prevent you from eating unhealthily but rather to prevent eggs, milk, meat and produce from making you sick. In that respect the food industry and FDA regulations have been spectacularly successful. Any nostalgia for a bygone era of healthy and plentiful food is misguided.
You could make a case for forcing people to eat healthier but that will be an uphill battle, both economic interest and poor consumer habits are aligned against that. There have been some success stories (e.g. outlawing transfats) but they are few and far between.
Anyone interested in the decline of our modern diet should check out Nutrition and Physical Degeneration, by Weston Price. He was a prominent dentist in the 30s that visited remote populations around the world, documenting their traditional diets and the health effects when switching to a "modern" diet. Available for free on Project Gutenberg http://gutenberg.net.au/ebooks02/0200251h.html
Must any criticism of modern practices equate to an endorsement of dialing back to ancient ones?
Is anybody building AI to catch these sorts of obvious fallacies? Now that would be pretty damn impressive for an AGI skeptic such as myself.
Seems to have worked out ok for the last few 100k years unless you think the other hominids we suspect of cooking got offed by it and we just got deliciously lucky.