Drink mineral water or pure water？ Talk about the IQ tax on drinking water

　　Long knowledge

　　Water is the source of life, and maintaining the normal function of our body is inseparable from the participation of boiling water. Pure water and mineral water … … In today’s dazzling array of goods, it becomes a complicated matter for people with difficulty in choosing what water to drink.

　　So what’s the difference between pure water and water containing minerals?

　　Pure water refers to water that does not contain minerals and any impurities. Generally, we can obtain pure water after a series of treatments such as coarse filtration, fine filtration, reverse osmosis and disinfection. Among them, reverse osmosis uses a semi-permeable membrane whose pore diameter is equivalent to that of water molecules to filter water under pressure, so that water molecules can pass through under pressure, while substances whose diameter is larger than that of water molecules cannot pass through the pores of the semi-permeable membrane.

　　The water containing minerals sold in the market is mainly divided into two categories: mineral water and mineral water. Both of them are water containing minerals, but the difference is that mineral water adds mineral components to the purified and filtered water according to a certain proportion. Mineral water is water taken from underground rock formations, which has undergone preliminary sedimentation, filtration and disinfection, and the types and contents of minerals in it are the same as those in underground rock formations.

　　Minerals in water generally contain calcium, magnesium, potassium, sodium, lithium, strontium and so on. These mineral elements are essential elements for the normal growth and development of our human body and for maintaining our health. Some animal experiments have proved that the electrolytes excreted by rats who drink purified water for a long time increase, and there is a risk of inducing cardiovascular diseases. Therefore, some opinions on the Internet believe that drinking pure water is not good for your health, and you should drink water containing minerals?

　　Let’s first see how many minerals can be supplemented by drinking water. Generally speaking, the content of zinc and iron in 1000 ml water is less than 0.2 mg, and adults need to supplement zinc 10-mdash every day; 15 mg, iron 12— Eighteen milligrams. Suppose everyone drinks 5 liters of water every day, and the daily intake of these minerals from water is less than 1 mg, which is insignificant compared with the amount needed by the human body.

　　In fact, in addition to getting these minerals through drinking water, the food we usually eat can also supplement us with minerals. Today, with the diversification of daily diet, our daily food sources are very rich, each food contains its own unique minerals, and we can completely supplement the mineral components needed by our human body through diversified foods. (Source: Popular Science China)