Yeah, just try to imagine where paleolithic man was getting his Omega 6 fats.
There was no corn oil, no soybean oil, no factory farmed meat. It simply wasn't available in massive, unlimited quantities, whereas it's nearly unavoidable in modern food. Hell, it was even relatively rare a hundred years ago. Back then, animal fat was used by everyone. Now, restaurants fry and cook everything in it. Most processed foods utilize it, since it's cheaper and supposedly healthier than animal fat.
The amount of Omega 6 fat we get is historically unprecedented, and our physiology hasn't evolved to deal with such large amounts.
Take a look at the latest dissection of the China Study raw data.
Heart disease in multiple provinces is most strongly correlated with (omega 6) vegetable oil and wheat intake. Negative correlations exist with saturated fat and animal product intake. It doesn't prove causation, but it certainly corroborates the controlled animal studies that show dietary omega 6 fats cause fatty liver, increase oxidized LDL, and promote inflammation.
E
ven babies are getting a raw deal these days.