Earlier quoted context omitted.
I would be interested to know if these studies refer to low quality vegetable oils using a chemical process to extract oil. For example, in the UK, supermarkets sell cold-pressed rapeseed oil (canola oil in the US). The cold-press process is sold as making rapeseed oil as relatively healthy cooking oil. Does cold-pressing rapeseed/canola seed turn it into a relatively healthy cooking oil (vs the expeller-pressed or c…
The problem is the fats in those oils are very susceptible to oxidation and have low smoke points, they are never safe as cooking oils for this reason. For cooking the best options outside of animal fats are olive oil and coconut oil, but of course olive oil is most versatile and better tasting imo.
Also IME olive oil loses its interesting taste rapidly when cooked with, but others may not find that.