It's been demonstrated they promote inflammation. They are subject to a complex industrial processing including chemicals and high temperatures that alter the structure of the molecules. That's why cold-pressed sunflower oil (the method used before 1900) is fine. Who would have thought highly processed unnatural food would be bad for the health?
I don't get your line of questioning. There are thousands of studies on the detrimental effects of those substances - some are more researched than others, but I'm sure it's hardly news for you that there are toxic pathogenetic compounds in our environment.
It's been demonstrated they promote inflammation. They are subject to a complex industrial processing including chemicals and high temperatures that alter the structure of the molecules. That's why cold-pressed sunflower oil (the method used before 1900) is fine. Who would have thought highly processed unnatural food would be bad for the health?