1, diet increases heat energy. Starting with beginning of winter. The cold climate affects the endocrine system of the human body, thus increasing the body's ability to keep out the cold and losing too much heat. Therefore, the nutrition in early winter should focus on increasing heat energy. You can eat more lean meat, eggs, fish, milk, beans and foods rich in carbohydrates and fats.

2. Eat less salt. In winter, Chinese medicine believes that we should eat less salty and suffer more. The reason is that winter is the time when the kidney meridian is vigorous, while the kidney is salty and the heart is bitter. According to the five elements theory of traditional Chinese medicine, saltiness wins bitterness, and kidney water wins heart fire. If you eat too much salty taste, it will make the kidney water that is already too strong more vigorous, thus weakening the strength of the heart yang, so you should eat more bitter food to help the heart yang. This can resist too much kidney water. For example, "Notes of the Four Seasons" said: "In winter, the kidney is salty, and you are afraid of fire and water, so you should nourish your heart."

3, eat less cold, not hot. Dietary care should follow the old adage of "nourishing yin in autumn and winter", "not disturbing yang" and "tonifying deficiency and warming cold", and adjust diet with the changes of four seasons. In the Yuan Dynasty, Hu Sihui wrote "Eating while Eating is Right": "When it is cold in winter, it is advisable to eat millet to cure its cold with heat." In other words, eat less cold and not hot. Eat some high-calorie foods that nourish yin and subdue yang properly. At the same time, eat more fresh vegetables to avoid vitamin deficiency, such as beef and mutton, black-bone chicken, crucian carp, etc., drink more soybean milk and milk, and eat more radishes, vegetables, tofu, fungus, ginkgo fruit and so on.

Diet varies from person to person and from region to region. China has a vast territory, different geographical environment and different lifestyles, which belong to winter, and the climate conditions in northwest China are very different from those in southeast coastal areas. In winter, the weather in northwest China is cold, so it is necessary to supplement products with high temperature and heat, such as cattle, sheep and dog meat. Although Jiangnan has entered the winter, the temperature is much milder than that in the northwest, and the tonic should be sweet, such as chicken, duck and fish; Located in the plateau mountainous area, with little rainfall and dry climate, fruits, vegetables and rock sugar should be used for sweet and nourishing.