Koreans eat without oil. I often eat Korean food. Look at the general rice on the menu: miso soup, spine potato soup, seaweed soup, roe soup, bean sprout soup, spicy cabbage fried rice, egg fried rice, eggplant fried rice, spicy fried rice cake ... mainly sour and sweet, with little oil and meat. Korean meat is very expensive and belongs to luxury goods! We treat Koreans with meat here, because they have never eaten so much meat in their lives! And the price in Korea is very high. If the economic strength is not enough, eating is a problem. But if you get used to it, it's nothing.