Purified water takes city tap water as its water source, and removes harmful substances and all nutrients in the water. Therefore, pure water can not replenish the electrolyte lost in the human body in time, but also dilute the concentrated electrolyte in the body. A state in which the human body loses the dynamic balance of electrolytes. After such water enters the human body, it will interfere with the transmission and distribution of water between cells in the body and affect the functions of important organs.
People feel tired, weak, headache, muscle spasm or arrhythmia. The above symptoms may be caused by drinking a lot of pure water every day and lacking necessary electrolytes in the body.
Relevant government departments in Shanghai, Anhui, Hangzhou and other places pointed out that drinking pure water for a long time may lead to insufficient intake of some minerals or trace elements, which is harmful to cardiovascular health, especially for primary and secondary school students in the growth and development period. Because pure water can easily lead to the loss of various trace elements, compounds and nutrients in children.
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Matters needing attention in buying bottled water
1. Select operators with complete licenses and good sanitary conditions. If they buy a certain brand of water for a long time or in large quantities, they should check with the manufacturer to see if the distribution point is authorized by the manufacturer.
2. Observing the sealing of bottled water, the heat-shrinkable film of inferior water sealing is generally thin, dull, uneven and loose. The lid of the real barrel has an arc indentation tear, which is easy to be torn along the line. The fake bucket lid is dark in color, which is difficult to tear off or not at all.
3. Pay attention to the condition of the bucket. Some bottled water labels are incomplete, and the barrel body is dark or even black. Don't buy them.
4. Choose bottled water according to the amount of drinking water. Once opened, it is best to drink it as soon as possible during the prompt period.
People's Daily Online-German Nutrition Association: Drinking purified water for a long time is not good for human health.
People's Network-Buy bottled water, beware of inferior barrels