Once you start adding chemistry, things can get weird fast. For example, a particular class of antibiotics may be behind the boost in diabetes in the US: https://pubmed.ncbi.nlm.nih.gov/24947193
Seed oils are usually solvent extracted, which makes me wonder, how thoroughly are they scrubbed of solvent, what stuff in the solvent is absorbed into the oil (also an effective solvent for various things), etc
Glyphosate for dessication is kind of horrifying, I’m surprised I didn’t know about it, but this explains a lot.
Basically all fish in the USA should only be eaten once a year due to PFAS contamination, and unfortunately trophic magnification seems to be a thing for those chemicals: https://www.sciencedirect.com/science/article/abs/pii/S0048969723019216
Solving the ‘how do I get uncontaminated food’ problem is an enduring challenge that is likely to get worse. I’m looking forward to a warehouse or homestead scale bioreactor produced protein (solein can probably be done at this scale), synthetic omega 3s are unfortunately not yet available for a bunch of reasons, but cautious optimism on that front: https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2023.1280296/full is reasonable (though synthetic versions will likely be solvent extracted, so we’re back to the earlier problem!)
I tend to think that composition of the diet in terms of macros, nutrients, etc probably is far less of a driver of health than presence or absence of pollution.
https://www.mdpi.com/2304-8158/11/21/3412 more recent source on hexane tox.
I’m not just talking about the hexane (which isn’t usually standardized enough to generalize about), I’m talking about any weird crap on the seed, in the hopper, in the hexane, or accumulated in the process machinery. Hexane dissolves stuff, oil dissolves stuff, and the steam used to crash the hexane out of the oil also dissolves stuff, and by the way, the whole process is high temp and pressure.
There’s a ton of batch to batch variability and opportunity to introduce chemistry you wouldn’t want in your body which just isn’t present with “I squeezed some olives between two giant rocks”
By your logic, extra virgin olive oil is a waste, just use the olive pomace oil, it’s the same stuff, and the solvent extraction vs mechanical pressing just doesn’t matter.