Experts say domestic mineral water is mostly "pseudo-water"

Since the death of the pigs in the Huangpu River, the small card that lives in Luodian New Town has installed RO membrane filters at home. In the case of dense equipment, the RO membrane is filtered through five layers, and its filtering pore size is sufficient to filter out all microorganisms and viruses. However, he still did not trust. He bought a TDS test pen that can detect drinking water electrolyte content from the Internet, and tested tap water, RO membrane filtered water, and Nongfu Spring water.
The test results are: TDS value of tap water is 140ppm, filtered water is 15ppm, and Nongfu Spring water is 41ppm.
He explained that if the water is contaminated or has dissolved into the electrolyte, the water is conductive, the conductivity of the strong electrolyte solution is large, and the conductivity of the weak electrolyte solution is small. Therefore, the content of the test substance can be determined by measuring the conductance of the solution. In the TDS test, if the purer water is measured, the smaller the value displayed on the test pen at the time of measurement, the less the inorganic compounds and organic compound impurities contained in the water (but these impurities are not all harmful to the human body). The larger the value displayed on the test pen, the higher the impurity content is apparent.
According to statistics, the TDS value of household water in major cities ranges from 200-1000, ie 0.2-1 grams of impurities per kilogram of water. If the TDS is 300ppm, the amount of water that enters the body every day is about 10 liters. One year, one person needs to “drink” more than 1,000 grams of impurities, which is equivalent to 2 pounds of garbage.
However, Xiaoka said that the TDS test is only an indicator of water quality, there are some bacteria, water hardness, and so on. "A friend who had done tap water in the flake experiment actually reached 10 to the 4th power. It's scary."
In general, adults need about 2500 ml of water per day, about 1200 to 1500 ml of which comes from daily drinking water, 800 to 1000 ml of water from food, such as vegetables, fruits, rice, steamed bread, meat, beans. Milk and other foods contain a certain amount of water, and the remaining 300 ml of water comes from water produced by metabolism in the body, that is, “self-born water.” People’s daily water consumption should vary with temperature, physical condition, and labor intensity. Adjustment. For example, in summer or when there is a large amount of activity, the amount of water needs to be increased. When the body suffers from chronic renal failure, cardiac insufficiency, dialysis, edema, etc., the drinking water should be appropriately limited according to the doctor's recommendation to prevent the body from getting water. More and more burden on the body.
Do not superstition concept water, such as alkaline water, electrolytic water, ionized water, double distilled water and so on. None of these so-called conceptual waters have certainty evidence that they will have a positive effect on the human body. Some businesses seize the psychology of people's pursuit of health and stir up some so-called high-tech. In fact, these waters are the same as ordinary boiled water, and the difference is not great. Especially alkaline water. People's stomach acid is acidic, alkaline water will become acidic after ingestion into the stomach, buying this water has no practical significance.
In people's lives, there are four common types of water: natural water, pure water, plain water, and mineral-added water. Pure water is relatively unpopular in these four types of water. Many people think that pure water is not nutritious. If you drink too much, it will cause the lack of trace elements and minerals. So many people in the supermarket like to buy mineral water. Instead of pure water.
In fact, people drink water, not for nutrition, people can not rely on drinking water to add enough minerals, a meal to add more minerals than drinking a few barrels of mineral water. The main purpose of people drinking water is to make water as a very suitable carrier, transporting other nutrients in the body to flow smoothly. As long as the water is safe and meets the drinking water standards of the country, the impact of purified water, mineral water, and boiled water on the human body is no different.

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