This is funny. I was just discussing this with my dad. Aside from saturated fats and broth which was included in every culture predating the prevalence of pufa oils. Almost all modern diets modern diets are rich in pufa, starch, and anti metabolic aminos and a sugar substitutes. For example if you compare machboos and beef burgers you'd conclade they are the same in a sence both contain massive amounts of pufa(sunflower oil vs soja oil), starch(rice vs wheat bun), and muscle meats + a can of sugar free cola/pepsi. Anti metabolic foods + sugar avoidance at a very low age defines the diet of almost all modern humans.
Seems like PUFAs are destroying people everywhere then.