In winter, you can add some "fat, sweet and delicious" foods to your daily diet, but not too much. In winter, the digestive function of human body is more active than in spring, summer and autumn, and the secretion of gastric juice, acidity and food intake increase, which reflects the increase of human body's demand for heat energy in winter. When the body is in a cold environment, in order to maintain body temperature balance, it is necessary to increase the metabolic rate in the body, thus increasing the demand for food, especially for fatty food. Eating the right amount of fat has good cold resistance and freezing resistance, but it should not be too much to prevent hyperlipidemia and obesity. The nutritional feature of winter diet is to increase calories. Among the three thermogenic nutrients, the intake of protein can be kept at the usual level, and the increase of calories should be mainly ensured by increasing the intake of sugar and fat. Minerals should be maintained at the usual requirement or slightly higher. You can choose foods with high fat content to increase calories. In the supply of vitamins, we should pay special attention to increasing the content of vitamin C. We can eat more vegetables such as radishes, carrots, potatoes and spinach and fruits such as oranges, apples and bananas, and at the same time increase animal livers, lean meat, fresh fish, eggs and beans to ensure the body's demand for vitamins. Adjust the "food clock" in winter-when it is cold in winter, people's appetite increases, but this does not mean that the human body needs more calories in winter. Modern scientific research has proved that the energy required by the human body in winter is not much different from that in other seasons, because in the cold climate, the operation of the "hormone clock" of the human body has changed. Winter is the time when kidney governs order. Kidney governs salty taste, and heart governs bitter taste. Saltiness can overcome bitterness. Therefore, "Notes of the Four Seasons" points out: "The kidney water in winter is salty, so it is appropriate to nourish the heart." Therefore, the taste of diet should be salty and bitter, so as to nourish the heart, protect the heart and kidney, eat spicy products, make the lung qi direct and consolidate the kidney qi. Although it is appropriate to eat hot food in winter, it is not appropriate to binge drink hot things and eat more onions, so as not to turn latent yang depression into heat. Hard and cold food is forbidden in winter. This kind of food is mostly yin, which is easy to hurt the spleen and stomach. For example, people with kidney-yang deficiency often cause diseases such as depression of qi, cold limbs, diarrhea, and clearing the valley. There are three kinds of diet recuperation: one is porridge, and ancient health experts advocate drinking some hot porridge from late winter morning. "Eating is right" holds that mutton porridge should be eaten in winter to warm the yang. If you add red dates and red beans to japonica rice porridge, you can feel warm and energetic. People have the habit of eating red bean porridge on the solstice in winter. They eat Laba porridge on the eighth day of the twelfth lunar month and Babao porridge on the 25th of the twelfth lunar month. In winter, you should eat oatmeal porridge that nourishes the heart and relieves annoyance, radish porridge that helps digestion and phlegm, yam porridge that nourishes the lung and stomach, walnut porridge that nourishes yin and essence, Poria porridge that strengthens the spleen and nourishes the stomach, jujube porridge that nourishes qi and yin, corn porridge that stimulates appetite, and sweet potato porridge that nourishes liver and kidney. Second, it is appropriate to warm the product to take the meaning of yang and yin. If you want to eat beef and mutton, dog meat, longan meat, dates, eggs, yam, pig blood, glutinous rice, leeks and so on. Drinking a small glass of wine for dinner every day in winter is of great benefit to middle-aged and elderly people. Sanyi nuts, eat more walnuts, chestnuts, pine nuts, peanuts, sunflower seeds, sesame seeds, black beans and black rice in winter. It should be noted that obese people avoid being fat, sweet and warm. Warm products such as mutton and chicken in winter are suitable for people with yang deficiency. Duck and goose are the best supplements for deficiency of both qi and yin. It is pointed out in the "Fun Life Diet Spectrum" that ducks nourish the yin of the five internal organs, clear the heat of deficiency and fatigue, nourish blood, run water, nourish the stomach and produce fluid. Beginning of winter marks the arrival of winter, which is a long time and a good opportunity for tonic. Therefore, many people have to eat supplements at the dinner table. Some people may ask, what food is the most suitable and beneficial to the human body in winter? According to the "five elements theory" and "the correspondence between man and nature" of traditional Chinese medicine, nothing can give full play to the health care function in winter than "black food". Traditional health care attaches great importance to "the right time", "the right place" and "harmony with people". Black food such as black rice, black beans, black sesame seeds, black fungus, black dates, black mushrooms, black mulberry, konjac, silky fowl, squid fish, soft-shelled turtle, kelp, laver, etc. They are all suitable for eating in winter, which is determined by the relationship between heaven, earth and people. In the collocation with the five internal organs of the human body, it fits the kidney, and in the collocation with the five colors of nature, it belongs to black, and the kidney corresponds to winter, and black enters the kidney. Traditional Chinese medicine believes that the kidney controls the storage of essence, and the essence in the kidney is the source of life and the material basis of various functional activities of the human body. The growth, development, aging, immunity and disease resistance of human body are closely related to the rise and fall of essence in kidney. "The kidney dominates the thorn, which is the foundation of sealing up". Therefore, tonifying kidney in winter is the most timely. Modern research shows that the color of food is closely related to nutrition. With the change of natural pigment from shallow to deep, food is richer in nutrition and more reasonable in structure, while black food reaches its peak. Black enters the kidney meridian alone, and eating black food can benefit and strengthen the kidney, enhance human immune function and delay aging. Eating in winter is more distinctive. Black food can best show its "heroic nature" in winter, which can be described as a tonic medicine in winter. Different from mutton and dog meat, black rice, black beans, black sesame and other black foods are not only rich in nutrition, but also light in taste, nourishing but not greasy, and not dry, which is especially beneficial to the elderly, the infirm and the children in the growth and development stage with insufficient kidney qi. Eat "black" in winter, let black food enter your table, and you will get unexpected returns. In winter, the temperature is low, the days are short and the nights are long, so human activities are relatively reduced and appetite is increased. Generally, the total diet in winter is one-third higher than that in summer, which is the best season for women to carry out diet therapy.