What are the advantages and disadvantages of the traditional diet structure in China? There are experts in wood.

In modern life, people's dietary concept should be constantly updated with the development of dietary science. While pursuing delicious food, we should pay more attention to the reasonable choice of food to meet the requirements of nutrition and hygiene.

The human body needs many nutrients, such as protein, fat, carbohydrates, inorganic salts and vitamins. Various nutrients interact and complement each other. In order to meet the nutritional needs of the human body in many aspects, we must try our best to match food reasonably.

In the staple food, you need a combination of coarse and fine grain and dry and wet. In this way, you can get various nutrients from different foods. Not only staple food should be diversified, but also non-staple food should be diversified. Advocate a variety of nutrients: eat more vegetables, fruits and potatoes; Eat milk, beans or their products every day; Often eat fish, poultry, eggs, lean meat and so on. Only by achieving a reasonable and balanced dietary structure in food collocation can we meet the normal needs of the human body and be beneficial to human health.

Huangdi Neijing put forward a diet structure of "five grains for nourishment, five fruits for help, five animals for fitness and five dishes for filling". China's traditional diet is dominated by cereals, rich in vegetables and less in meat. Most foods are not carefully processed, and the amount of sugar is relatively small. Tea is a popular drink, and meat oil accounts for a certain proportion in edible oil.

◎ Characteristics of traditional diet structure

The diet structure based on grain is exactly what the west has been advocating at present. Because of the high carbohydrate content in cereals, the heat energy generated by carbohydrates accounts for more than 60% of the total heat energy, so cereals are the most economical and main source of heat energy. Because of the rich variety of vegetables and the lack of fine processing of food, we consume a lot of dietary fiber, so the incidence of digestive system diseases and intestinal cancer is extremely low. The intake of tofu, bean products, fermented bean curd, soybean milk and soybean milk should be supplemented with some high-quality protein and calcium. Drinking tea, eating fruits and sweets are less, which reduces the excessive intake of sugar. Rich seasonings, such as onion, ginger, garlic and pepper, have many functions, such as sterilization, reducing blood fat, stimulating appetite and helping digestion.

◎ Deficiency of traditional diet structure

Insufficient intake of milk and dairy products. Dietary survey shows that the national calcium intake only reaches a little more than half of the daily recommended amount. Milk has high nutritional value and is the best source of calcium. It should be advocated to drink more milk, not less than 250 ml per day.

Lack of lean beef, lean mutton, fish and other animal foods leads to insufficient intake of high-quality protein.

Excessive salt intake. The average daily salt intake of residents in China is 13.5g, which is far from the standard that the average daily salt intake per person is less than 6g in the Recommended Standard for Prevention and Treatment of Hypertension and Coronary Heart Disease of the World Health Organization.

Excessive drinking.