There is an evolutionary argument justifying the avoidance of seed oils (industrial vegetable oils) in our diet.

noli's read

This argument rests on the idea that our ancestors would not have consumed these oils, making them unsuited to our modern biology. Current research, particularly through observational studies and randomized controlled trials (RCTs) cited by researchers like Layne Norton, strongly nuances this view. It is proven that the polyunsaturated fatty acids present in these oils can help reduce LDL-cholesterol, a key marker of cardiovascular health, contrary to what some anti-seed oil narratives suggest. The idea of inherent toxicity or systemic inflammation caused by linoleic acid is not supported by robust clinical evidence to date. On the other hand, the industrial refining process is sometimes singled out, but this remains distinct from the lipid composition itself. Mendelian randomization studies tend to confirm that the impact on cardiac risk is linked more to total lipoproteins than to the specific oxidation of these oils. Thus, the evolutionary argument simplifies a metabolism that is much more complex and dependent on the overall balance of the diet.

the sources

No named source held this one up — that absence is part of the verdict.