Is it okay for the elderly to drink pure water?

　　healthy , Convenience - When these words are added to bottled water, more and more pure water has entered thousands of households. Some people even completely replace tap water with pure water. Then, the use of tap water seems to be only for cleaning. But this is not a good thing for the elderly.

　　Peking Union Medical College Hospital Shen Ying, director of the inspection department, said that through deep processing of tap water with special techniques, purified water has removed some harmful substances in the water, making it cleaner.”； However, during processing and reverse osmosis, many beneficial minerals and trace elements are also lost, such as calcium, magnesium, iron, sodium, potassium, etc. The processing method of tap water is different from that of pure water, which ensures the existence of original minerals and trace elements in the water. Therefore, in this sense, tap water is more "healthy" than pure water.

　　Fan Zhihong, associate professor at the School of Food Science and Nutritional Engineering at China Agricultural University, reminded that although drinking purified water is more popular, it cannot completely replace tap water in daily life. Especially for the elderly suffering from osteoporosis, these elements that are lacking in pure water are exactly what the body needs to supplement. Especially calcium, a considerable part of people's intake of it comes from tap water. If you drink pure water for a long time, your body is destined to "miss" this part of the nutrition.

　　In addition, some experts pointed out that drinking pure water for a long time will lead to malnutrition in the body.； Drinking a large amount of it will also take away useful trace elements from the human body, thereby reducing the body's immunity.

　　Fan Zhihong said that although tap water is not as clean as pure water, as long as it is boiled, the original harmful substances in the water will be eliminated. Under normal circumstances, people do not need to worry too much. for elderly For example, you can drink pure water and tap water alternately in your daily life. Since tea already contains some trace elements that are beneficial to the body, you can use pure blister Tea can not only supplement necessary trace elements, but also tastes good and does not bind theophylline. But when cooking, washing rice, cooking rice and making soup, ordinary tap water will suffice.