The immune system wants to ＂keep fit＂？ Reasonable diet can be ＂stable＂

　　On the morning of May 17th, 2020 National Nutrition Week and the online kick-off meeting of "May 20th" China Student Nutrition Day were successfully held. The theme of this year’s National Nutrition Week is "reasonable diet, the cornerstone of immunity" and the slogan is "opening a new era of reasonable diet". The theme of China Students’ Nutrition Day is "Reasonable diet promotes three reductions, and good habits promote three health". The theme of the two activities is based on "reasonable diet". Yang Yuexin, chairman of China Nutrition Society, pointed out at the meeting that health and longevity have always been the pursuit and hope of human beings, and this year’s epidemic situation has once again inspired us to explore nutrition and immunity. To provide a sustainable overall immune function, not a single nutrient or a single measure can be achieved, which requires a reasonable diet.

　　Reasonable diet can improve human immune function.

　　Reasonable diet is the cornerstone of immunity, and nutrients are the material basis of immune system. Chairman Yang Yuexin emphasized that if one or several nutrients are lacking, the body will have corresponding disease symptoms, and infectious diseases will also have a vicious circle. On the contrary, if sufficient nutrients are supplemented, the body can play its best immune function.

　　Specifically, a reasonable diet is a personalized diet design, which mainly emphasizes that the types and proportions of food should meet the demands of personal physiology or disease or diet culture. For healthy people over two years old, a reasonable diet is a balanced diet; For others, a reasonable diet is a personalized diet based on the principle of balanced diet.

　　In order for students to better understand and obtain the health benefits of a reasonable diet, the China Student Nutrition and Health Promotion Association launched the initiative of "Reasonable Diet, Advocating Healthy Lifestyle" to primary and secondary school students all over the country. Students are advised to have a balanced diet and drink plenty of water. Eat meat, eggs, milk, beans and other foods rich in high-quality protein in moderation every day, and eat more fresh fruits and vegetables to supplement various vitamins and minerals and improve the body’s immunity. Develop good eating habits, eat less oil, salt and sugar, don’t overeat, don’t be picky about food, don’t drink raw water, don’t eat raw food, fast wild animals, and use public chopsticks and spoons to share meals.

　　Scientific intake

　　High quality protein such as milk, soybeans and eggs.

　　Promoting "high-quality protein sources such as milk, soybeans and eggs" is also a major focus of National Nutrition Week in 2020. Ms. Xu Yangying, the representative of the International Consumer Goods Forum, said when sharing the Big Data Report on Food Consumption in China from January to April, 2020, that the prolonged stay at home and the improvement of health awareness caused by the epidemic brought about changes in consumers’ lifestyles, and the trend of "healthy consumption" was obvious. This includes the increase in the intake of high-quality protein sources such as milk, soybeans and eggs.

　　The first is that consumers are more active in buying dairy products. Xu Yangying introduced: "Liquid milk performed well during this period, with a year-on-year increase of 3.3%. Although the whole category of yogurt has declined slightly, the low-temperature original yogurt is the best-selling list of store sales. " It is worth noting that when consumers choose yogurt, they should learn to check the sugar content in food labels to prevent excessive intake of sugar. Some lactose intolerant consumers can choose yogurt, cheese or low lactose dairy products first when buying dairy products.

　　Secondly, consumers’ consumption of soy products is also growing. "Among the top three bean products, there are both soybeans in soybeans and adzuki beans and mung beans in miscellaneous beans, and the growth rate of mung beans is over 50 times." Xu Yangying believes that this may be based on consumers’ cognition of the role of mung beans in traditional diets.

　　Soybeans and their products are rich in high-quality protein, essential fatty acids, vitamin E, soybean isoflavones, phytosterols and other phytochemicals. It is recommended to consume more than 25g of soy products every day. According to experts, there are two kinds of bean products, including soybeans, green beans and black beans, and miscellaneous beans including red beans, mung beans, flower beans, kidney beans, peas, chickpeas and broad beans. The protein content of miscellaneous beans is lower than that of soybeans, but they can be eaten with cereals, which plays a good complementary role between protein and cereals.

　　Finally, the national "nutrition consensus" on eggs has also achieved quite good results for eggs. In the first four months of 2020, the sales of eggs occupied the well-deserved top position among eggs.

　　As a good source of high-quality protein, eggs are also rich in vitamins, healthy phospholipids and monounsaturated fatty acids, so it is recommended to take them every day. However, it should be noted that you should not eat raw eggs, do not discard yolk, and try to choose less processed egg products with high salt content.

　　Five units initiated

　　Joint initiative of universal meal sharing system

　　The spread of the epidemic in COVID-19 has made people realize once again the importance of health and safety on the dining table, and also the urgency of advocating and practicing the separate meal system in the whole society. The Office of the National Nutrition and Health Steering Committee, the China Nutrition Society, the Chinese Preventive Medicine Association, the World Federation of Chinese Cuisine Industry and the China Cuisine Association jointly launched the nationwide meal sharing initiative. On the spot, relevant representatives jointly read out "Rational Diet, Promoting Separate Meals, Preventing Diseases and Reducing Waste — — Proposal for the National Meal Sharing System.

　　It is pointed out in the proposal that the implementation of national meal sharing is a proper move of table civilization, and it is also a practical need to prevent diseases and enhance health, especially the current epidemic prevention and control in COVID-19. Food diversification can be realized by dividing meals, and food can be distributed according to needs, and eating is not excessive, which is beneficial to reasonable diet and balanced nutrition. In addition, it can also reduce cross-infection, reduce the occurrence of food-borne diseases and infectious diseases, and also help to reduce food waste. Therefore, it is suggested that families, catering industries and canteens of organizations should actively promote the measures of "public chopsticks and public spoons" to create a good atmosphere for implementing the system of separate meals in the whole society and form a safe, nutritious and economical way of eating.

　　It is reported that from May 17 to May 24, the nutrition science popularization activities around the theme of "the cornerstone of reasonable dietary immunity" will be widely spread throughout the country. The National Nutrition Science Popularization Conference, the First China Nutrition Thirty Forum, 100 nutrition and health science popularization live broadcasts, the "nutrition speaker" science popularization live broadcasts, and the "reasonable diet immunization" Weibo activities will be launched one after another to popularize the knowledge and skills of reasonable diet. (Text/Beijing Youth Daily reporter Zhang Yanyan)