[lcfcjs6]

I think this is an accurate point. I would also add preservatives. Companies have an incentive to increase shelf-life, so they pump these products full of them, despite their effects on health.

[bberrry]

What evidence is there of preservatives having detrimental effects on humans (in the doses we actually receive)?

[ramblenode]

Preservatives achieve their intended function by broadly destroying and preventing the growth of microbes, which are an integral part of our digestive system. So I would flip the question: what evidence is there that preservatives don't damage a healthy human microbiome?

Here is a review of some of the research. It seems to still be an open question because of the many variables involved: https://pmc.ncbi.nlm.nih.gov/articles/PMC9864936/