[lithocarpus]

I mean there is a financial incentive to use byproducts of industrial processes that would otherwise be wasted, as food ingredients, and as there is no requirement to rigorously show that new ingredients are safe to consume in the US, this happens all the time and makes up a big portion of the average modern US diet.

[KPGv2]

But the list of allegedly questionable foods above are all foods we already eat, just with some things removed (e.g., avocado oil is just avocado with the flesh removed; pea protein is peas with the carbs removed). It is not obvious to me how you would conclude these are unhealthy.

[lithocarpus]

Study Finds 82 Percent of Avocado Oil Rancid or Mixed With Other Oils

https://www.ucdavis.edu/food/news/study-finds-82-percent-avo...

"In three cases, bottles labeled as “pure” or “extra virgin” avocado oil contained near 100 percent soybean oil"

You don't necessarily know what you are getting when you buy a processed ingredient, and there are huge financial incentives to not sell a top quality product when you can substitute other things or use cheaper processes to make it.

Some portion of avocado oil sold today is refined with hexane, heated during the refining process, and likely heavily oxidized before consumption. (This is evidenced by the above paper, oxidized = rancid, and it's not a binary either/or there is a spectrum of how oxidized/rancid a fat can be.)