Fried foods bad since at least 800 AD
 

Einhard (775 - 840) writes of Charlemagne ... "Even then, he stubbornly did what he wanted and refused to listen to doctors, indeed he detested them, because they wanted to persuade him to stop eating roast meat, as was his wont, and to be content with boiled meat."

I've been reading a lot on raw food diets and I'm starting to consider giving it a try just to see what the result is.