Winter tonic should also pay attention to scientific tonic, and eat more foods that warm the stomach and strengthen the spleen and stomach, such as glutinous rice, red dates, radishes and poria cocos, so as to lay a good foundation for preventing diarrhea in summer and autumn next year. At the same time, winter is also the best time to tonify the kidney. The kidney is the foundation of human growth and development, and the kidney meridian is vigorous in winter. If you eat more salt in this season, it will increase the burden on your kidneys. Therefore, in winter, you should appropriately reduce the salt intake and eat more bitter food.