2. At the press conference of the first China Student Nutrition and Health Festival, nutrition experts called on the whole society to pay attention to the nutrition and health problems of primary and middle school students in urban and rural areas with the increasingly affluent life in urban and rural areas.
3. Nutritional status and nutritional composition are important factors that affect the quality of a nation's population, and are directly related to the physical and intellectual development of teenagers. Jiang Jianping, director of the Expert Committee of the National Student Milk Drinking Program, believes that malnutrition caused by the lack of certain nutrients has not disappeared naturally with the economic development. According to him, some data show that the average calcium intake in primary and secondary schools is obviously insufficient, only reaching 40%-50% of the supply standard, regardless of urban and rural areas.
4. The nutritional status of rural children is even more worrying. The low weight rate and growth retardation rate of children under 5 years old in rural areas reached 23.9% and 29.5% respectively, which directly affected the healthy growth of children and adolescents. At the same time, the obesity rate of urban primary and secondary school students is rising rapidly. For example, in 200 1 year, the obesity rate in Beijing is as high as 15%- 17%, which is 10 percentage point higher than that in the whole country. Obesity has become a prominent problem. Due to the lack of physical exercise among primary and secondary school students, the students' body mass index was lower than 1995 in 2000.
5. Guo Jiyi, vice president of China Student Nutrition and Health Promotion Association, said that according to statistics, the average height of China teenagers aged114 is 2-3cm shorter than that of their Japanese counterparts, mainly because China teenagers have an unbalanced diet and lack of vitamins and trace elements such as calcium, iron and zinc, which leads to malnutrition. According to statistics, the malnutrition of children in the western region is more serious than that in the eastern region. The proportion of children whose height and weight are not up to standard is 20%, and the proportion of children with growth retardation is as high as 30%. Experts believe that it is urgent to publicize and popularize the knowledge of nutrition science and food hygiene, so as to eliminate the "nutrition blindness" in urban and rural areas of China.