This has something to do with the local geographical location. It's very cold in winter in Northeast China. In the past, when there were no greenhouse vegetables, the Northeast mainly ate potatoes, Chinese cabbage and other vegetables that were easy to store in winter (that is, what we call winter vegetables), and there were few kinds of these vegetables. Compared with vegetables, meat is easier to store in winter. Therefore, eating more meat and less vegetables and fruits will become a eating habit after a long time! Just as northerners eat pasta and southerners eat rice, it has nothing to do with history but with geography. Just like Mongolians love meat.