There have been quite a few claims lately on the internet (though all look deceptively similar), that vegetable oils in general are bad for your health and that one should prefer oils which are not extracted from seeds, like coconut and olive oil.
Usually, in these claims there is no differentiation between oils - All are equally branded as "unnatural" and therefore bad. In addition, it is claimed that they are responsible for cardiovascular and other diseases.
I am wondering if these claims are correct and whether all vegetable oils can be shown to be collectively problematic to human health, when consumed in regular, day-to-day amounts.
Are vegetable oils (such as canola, corn, sunflower, etc.) linked to health problems?