This is from 2016. It is what we have been told. In my opinion, it is wrong. Much of the research he quotes is based on epidemiological surveys. They cannot show causation, only correlation. It has since been proven that saturated fat is NOT the problem. Through randomized controlled trials, not epidemiological food survey studies. Note that FDA guidelines have now dropped the anti-saturated fat and consider it "no longer a food of concern".

https://www.youtube.com/watch?v=v_ONFix_e4k&t=609s

But we have a whole generation, maybe two, that has had the above message hammered into their brains. It is something hard for many to unlearn.