According to the traditional folk custom in China, "beginning of winter" stands for the beginning of winter. "In winter, the heavens and the earth are combined, and the water and ice are frozen." Nature is full of yin and yang, and everything hides yang, waiting for spring. "Cold" is the main feature of winter climate change. In winter, besides paying attention to cold and warmth, diet health care is also very important. The cold climate in winter affects the endocrine system of human body, which increases the secretion of thyroxine and adrenaline, thus promoting and accelerating the decomposition of protein, fat and carbohydrate, increasing the body's cold-proof ability, thus causing excessive loss of heat. Therefore, winter nutrition should focus on increasing heat energy. You can eat more lean meat, eggs, fish, milk, beans and foods rich in carbohydrates and fats.

Winter is the off-season for vegetables. Therefore, after a winter, people often have vitamin deficiency, such as vitamin C deficiency, which leads to oral ulcers, root swelling and pain, bleeding, constipation and other symptoms. Then people can eat some potatoes properly, such as sweet potatoes and potatoes. They are all rich in vitamin C, vitamin B and vitamin A, and red sweet potatoes also contain more carotene. Eating more potatoes can not only supplement vitamins, but also clear the fire. In addition to Chinese cabbage, cabbage, radish heart, white radish, carrot, bean sprouts, mung bean sprouts, rape and so on. It should also be selected in the main course listed in winter. These vegetables are rich in vitamins, so it is necessary to change varieties frequently and mix them reasonably to supplement the human body's demand for vitamins. As the saying goes, "make up for a winter in September, and there will be no disease in the coming year", and winter is also a good time to make up for it.