> However, the social norm diet (particularly in the USA) today takes a majority of its calories from foods that did not exist for the most people living 200 ye

> However, the social norm diet (particularly in the USA) today takes a majority of its calories from foods that did not exist for the most people living 200 years ago (refined vegetable oils, refined sugar, and refined or poorly processed grains). Don't forget: clean (refined) water, refined medicines, sterile operating rooms. Old doesn't make it better.