Nutritional status of the students in middle and primary school of our country at present

Nutritional status of the students in middle and primary school of our country at present
Meal nutrition is from the nutrition that is obtained in the daily meal eaten. Meal nutrition is a material base of human growth, school-days is the period that physique and intelligence are most active in development, whether the meal of this period is scientific, nutrition is suitable, have important influence on a person's health in all one's life. In recent years, the meal nutrition of the students in middle and primary school of our country takes in very great change. The third nutrition in the whole country adjusted finding, the absorption of the meal energy of the students in middle and primary school of our country was more sufficient in 1992, explaining city of our country and middle and primary schools of the countryside obtains food of enough quantity in one's life. Many problems still exist with respects such as the meal structure,etc. to but take in in the meal of some nutrient: (1)The intaking amount of rural student protein is on the low side. The intaking amount of rural primary school girl protein is 54 grams every day on average, it is 84.6% of the delivery volume standard, also need further improving. (2)Calcium, iron, zinc are generally scarce. It is obviously insufficient that the meal of students in middle and primary school calcium of our country is taken in, the average intaking amount of calcium is 341- 474 milligrams every day, only reach 39%- 52% of the delivery volume standard. The shortage of calcium will influence the normal development of teeth and the skeleton. Though there is much intaking amount of the iron in the meal of students in middle and primary school of our country, the incidence which is short of iron anaemia is still very high. This is because the absorption rate of the iron is low in the meal of our country, unreasonable diet nutrition. Iron deficiency anemia will influence the school grade, grow, reduce resisting ability to disease of body. The intaking amount of the middle school girls of city, countryside zinc is on the low side, only reach 74.2% - 76.9% of the delivery volume standard. The shortage of zinc will influence normal growth. (3)Vitamin A and vitamin B2 is taken in insufficiently. The intaking amount of vitamin A of students in middle and primary school of our country is generally insufficient, the city only reaches 62.9% - 75.7% of the delivery volume standard, the countryside is lower, it is 48.2% - 57.2%. It will cause nyctalopia, dry eyes that vitamin A lacks, the serious one can result in losing one's sight; Will present the skin coarsely, drily, will drop to the resistance of infectious disease; Will also influence the normal development of teeth and the skeleton. The intaking amount of vitamin B2 of students in middle and primary schools of our country is generally insufficient, the city only reaches 59.1% - 75% of the delivery volume standard, the countryside is 53.1% - 56.4%. It can cause edge inflammation of eyelid, angular stomatitis, lip inflammation, glossitis, dermatitis,etc. that vitamin B2 lacks, will also influence normal growth. (4)The meal structure is unreasonable. Form, come, watch from meal, urban the intersection of student and 56%- 63% meal heat energy come from the food of cereal, 12%- 18% come from the animal food; 70%- 75% of meal heat energy of rural students, only 4%- 7% come from the animal food; The heat energy of the supply of the beans, no matter cities or countrysides are generally all low, only in under 2%. Beans and soyfood contain abundant high-quality protein, so, should increase the absorption of the beans. Especially in the countryside, should fully make use of local abundant soybean resource to improve students' nutritional status. The intaking amount of the fat of urban students in middle and primary school accounts for 24%- 27% of the total heat energy of meal, has already been close to proposing the upper limit of delivery volume, so, should not increase the absorption of the animal food rich in fat for them again. To student in the countryside, the intaking amount of the fat accounts for 16%- 18% of the total heat energy of meal, close to the minimum, so should also increase the absorption of the animal food appropriately. Teenagers intellectual investment and that physique invest golden age in period, do not only miss " weather " ,Could grow intact, the physique is stalwart, thinking is quick, grow up healthy and sound.

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