I am aware that Dr Mercola is a strong critic of the over-consumption of Omega-6 oils, linoleic acid. I may be wrong, as the article I needed to check has now disappeared, but he has a book coming out co-written with Tucker Goodrich on the health dangers of linoleic acid, which they argue is a major contribution to disease. The classic examples here are seed oils, vegetable oils, such as sunflower oil. However, olive oil, which is championed by many in the alternative health network, and in the Mediterranean diet, also contains linoleic acid. Yet, as documented below, olive oil has a case for reducing risk of dying from Alzheimer’s disease, cancer, heart disease or respiratory disease compared to those who rarely or never consumed olive oil, according to research from Harvard University. So, how do we make sense of these seemingly contradictory results? My take is that Dr Mercola is right in general and that the intake of linoleic acid needs to be vastly reduced. However, relative to people consuming a modern diet of processed food, loaded with trans fats, olive oil comes out as a health food, in moderation. It took a bit of effort to get my old brain around all of this. It is all a question of relativity.
https://www.naturalnews.com/2022-08-03-olive-oil-consumption-reduces-risk-of-death.html