Firstly, boiled water is the best drink for primary school students.

Drinking boiled water can not only meet the physiological needs of primary school students, but also provide them with some minerals and trace elements. No matter carbonated drinks, nutritious and health-care drinks, or pure water and mineral water that many families are keen on at present, it is not suitable to replace tap water as the main drinking water for people.

Primary school students need more water than adults because of their fast metabolism. Therefore, lack or excess of water, minerals and trace elements will affect their health.

second, eating too much cold drinks for a long time is harmful to health.

In summer, the secretion of gastric acid decreases, and the immune function of digestive system declines, while the climatic conditions at this time are just suitable for the growth and reproduction of bacteria. Therefore, summer is the season of digestive tract diseases.

Overeating cold drinks will cause the temperature in the gastrointestinal tract of primary school students to drop suddenly, and the local blood circulation will slow down, which will affect the absorption and digestion of nutrients in food, and may even lead to digestive dysfunction, nutritional deficiency and frequent abdominal pain of primary school students.

thirdly, can drinks are harmful to primary school students.

pop cans which are popular with children are made of aluminum alloy. In order to avoid contact between aluminum alloy and beverage, its inner layer is coated with organic paint for isolation. In the production process of some manufacturers, the protective coating is not completely coated on the tank wall, or the coating is damaged during sealing, filling and transportation, which will lead to direct contact between the beverage and aluminum alloy, and aluminum ions will be dissolved in the beverage.

fourth, drinking pure water for a long time will lead to diseases.

The main difference between mineral water and tap water lies in the high content of certain minerals or trace elements, which has health care function for specific people. Drinking mineral water should be targeted, and what is lacking is the best. For example, pupils with zinc deficiency will benefit from drinking high-zinc mineral water. On the other hand, if there is no zinc deficiency and the zinc supply in the diet is sufficient, there is no need to drink this mineral water. Excessive long-term deposition of minerals and trace elements in human body may cause some diseases, the most common of which is kidney calculi.

eat puffed food as little as possible or not.

Pupils often eat puffed food, which will affect the normal diet, lead to the lack of protection and supply of various nutrients, and easily lead to malnutrition. Puffed food is generally high in salt and monosodium glutamate, which will make children vulnerable to hypertension and cardiovascular disease in adulthood. These are not good for the healthy growth of children.