The winter diet should follow the principles of "nourishing yin in autumn and winter", "tonifying kidney to prevent cold" and "worrying about Pingyang", and the diet should focus on nourishing yin to suppress yang and increasing calories. [Bushen first] Sufficient energy, but also a certain amount of energy for the coming year, so it is very important to tonify the kidney at this time. In diet, we should always pay attention to the nursed back to health of the kidneys, pay attention to the supplement of calories, eat more animal foods and beans, and supplement vitamins and inorganic salts. Dog meat, mutton, goose, duck, soybean, walnut, chestnut, fungus, sesame, sweet potato and radish are all suitable foods in winter. [Warm food is hard to avoid] Sticky and cold food is mostly cloudy, and eating such food in winter is easy to damage the spleen and stomach. Moreover, food overheating is easy to damage the esophagus, and after entering the stomach, it is easy to cause heat accumulation in the body and cause diseases; If the food is too cold, it will easily stimulate the blood vessels in the spleen and stomach and make the blood flow poor. However, the decrease of blood volume will seriously affect the blood circulation of other organs and endanger human health. Therefore, the diet in winter should be gentle. In winter, the function of the kidney is stronger. If you eat more salty food, the kidney qi will be stronger, which will greatly hurt the heart, weaken the strength of the heart and affect human health. Therefore, eat less salty food in winter to prevent excessive kidney water; Eat more bitter food, nourish the heart and enhance kidney function. Commonly used foods are: betel nut, orange, pig liver, sheep liver, kohlrabi, lettuce, vinegar, tea and so on.