1, the improvement of economic income level, the change of purchasing power and food choice.
China is in the transition stage from a well-fed society to a well-off society in an all-round way, and the food consumption varieties of urban and rural residents are becoming more and more diversified. The intake of cereals in residents' diet is decreasing, mainly rice and flour, while potatoes and miscellaneous grains are obviously reduced. The intake of animal food has obviously increased, and the dietary pattern has obvious tendency of "westernization" or "affluence", that is, high energy, high fat and high protein, while the dietary fiber is too low, which is not conducive to the prevention of some chronic diseases.
2. Eating habits affect the diet structure.
Eating habits are closely related to region, growing environment, religious belief and family environment. Some extreme eating habits often lead to dietary nutrition imbalance, so it is necessary to cultivate correct eating habits from children and take dietary nutrition balance as the main consideration.
3. Lack of nutrition knowledge is one of the reasons for the imbalance of dietary structure.
People's dietary consumption is not only related to income level and market price, but also depends on people's education level and nutrition knowledge. At present, China residents generally lack nutrition knowledge. For example, some primary school students eat rice and pickles in the morning, and feel full at that time, but eating in the morning can't meet their physiological needs. There are many office workers who skip breakfast and eat fast food at noon, which is extremely unfavorable to their health; In rural areas, some mothers sell the eggs laid by their hens, and then use the money from selling eggs to buy some candy, jelly and puffed food for their children, but they don't know that eggs are the most nutritious food, but they are recognized as "junk food" after buying them.
4. Misunderstandings and blind spots in food consumption.
With the improvement of people's living standards, residents' ability to pay for food consumption has increased. Many residents regard foreign fast food, traditional tonic and high-grade hobby food as their own or their children's daily food. They don't know that the energy ratio of 84% western-style fast food is unreasonable, and excessive or insufficient nutrients in western-style fast food is one of the main unfavorable factors that cause dietary imbalance. Compared with soybean milk, the protein and fat content of soybean milk are similar to that of milk, and the fat is mainly unsaturated fatty acids. At the same time, oligosaccharides and soybean isoflavones in soybean milk are extremely beneficial to the human body, especially the elderly, so the effect of drinking soybean milk for the elderly is better than that of milk.