Among these 80% people, 80% people think that mineral water is better than pure water, and most people just estimate minerals through hearsay or naturally.
At the same time, there are also many articles listing authoritative papers, various expert opinions, national health standards, international health organizations, doctors' opinions and other materials to prove that pure water is better than mineral water (then I found that both are good, but I still didn't find a reliable answer).
Disclaimer: What we are talking about here is not the benefits of mineral water, but the safety of water. Even if mineral water is useless, we don't think it is harmful. What's more, everyone thinks that since it's harmless, what's good? So drinking mineral water is of course the best.
However, is the water filtered by ultrafiltration water purifier necessarily better than pure water? Your tap water source is not Qiandao Lake and Danjiangkou Reservoir in Nongfu Spring, nor Evian town in France with Evian mineral water backed by Alps. Most of our tap water sources are river water and river water. Go and see how dirty the water is So is it necessary to ignore water pollution problems such as heavy metals for a little so-called minerals? This is the focus of our article.
What are pure water and mineral water?
Pure water: Pure water refers to H2O without impurities. Bottled purified water bought in general supermarkets or purified water filtered by RO water purifier can basically be considered as H2O, with no impurities except water molecules.
Mineral water: Mineral water is water with magnesium, potassium, sulfur, chlorine and other mineral elements reasonably added according to human needs on the basis of pure water. The types of mineral water added are chaotic, and there is no unified national standard for quality. Mineral water is mainly added by the industry according to the Hygienic Standard for the Use of Food Additives (GB2760-2007). It is a kind of water, and its main purpose is to replenish water, not nutrition.
Are trace elements and minerals difficult to obtain?
When many people hear about minerals and trace elements, they think that trace elements are very scarce, precious and hard to get. There are no trace elements in the water. What if the body can't supplement them? Actually, it is not!
First of all, trace elements refer to minerals that exist in human body in a very small amount, usually 0.0 1% lower than human body weight. They are not very scarce, precious and difficult to obtain, but only in small quantities.
Second, the more trace elements added, the better. The human body only needs a little, and it is not good to have more or less. Moreover, since it is not very scarce and precious, it is hard to get. In fact, there is absolutely no need to hold on to trace elements in water, and there are much more trace elements in all kinds of food than in water.
Third, the human body can only absorb trace elements in organic state, and can hardly absorb trace elements in inorganic state. Most of the trace elements in water are inorganic, which means that the trace elements in water can hardly be absorbed, and most of them can only come from food.
When your body is short of calcium and iron, the doctor will only tell you to drink more milk and eat more beans or beef. Because your body can only absorb calcium and iron in an organic state!
The doctor won't tell you to drink more water containing scale and rust, because most of the calcium and iron in the water are inorganic substances and can hardly be absorbed by the human body!
In fact, only living plants can absorb and utilize inorganic minerals in soil.
Organic minerals transformed by plants can be absorbed and utilized by human beings and animals.
Almost no one can get nutrition from inorganic minerals in water, and no one can effectively apply inorganic minerals to the body.
Clarify the purpose and focus of drinking water
No matter what water we drink, we must first understand that drinking water is not to supplement nutrition, but to supplement the water lost in the body.
It's like, no one will say, I'm hungry Drink two glasses of water. Do you care about drinking water? If you drink water, whether you are hungry or not, why should you use water to supplement your nutrition? Some people say that drinking pure water for a long time can lead to chondrosis and osteoporosis.
Take a chestnut, for example, a common mineral water on the market.
The calcium content of this mineral water is ≥ 400 ug/ 100 mL(4 mg/L). If you drink 2L of water every day, the calcium you drink is only 4 mg /L * 2L = 8 mg, accounting for 1% of the recommended daily calcium intake (800 mg), which is not as good as the calcium in a mouthful of milk.
In other words, if you have rickets and osteoporosis, can't you eat some milk, tofu, fish and meat? Do you have to stare at the calcium in the water all day?
Therefore, although minerals are good, it is not obvious how much the mineral trace elements in mineral water can bring to our health.
So what's the point of drinking water?
Safe!
Whether you buy a water purifier, packaged mineral water or pure water, the most important thing is that the water is clean and safe to drink, not to supplement nutrition.
Can all minerals in water be obtained from food?
Speaking of calcium, you can drink a glass of milk. Can all minerals in water be obtained from food?
For example, magnesium ions, magnesium-containing foods are: cereals such as millet, corn, buckwheat noodles, sorghum noodles, oats, macaroni and baked potatoes; Beans, such as soybeans, black beans, broad beans, peas, cowpeas and tofu; Vegetables such as winter vegetables, amaranth, peppers and mushrooms; Carambola, longan, walnut and other fruits; Others such as shrimp, peanuts, sesame seeds, seafood and so on.
For example, potassium ions, potassium-containing foods include: bananas, sweet oranges, melons, watermelons, fresh peaches, grapefruit, potatoes, grapes, zucchini and so on. The foods rich in potassium are watercress, Chinese cabbage, celery, coriander, radish, cauliflower, mushroom, pumpkin and so on. Green onions and edamame are also rich in potassium.
I won't give examples. The contents of various ions in fruits and vegetables in our life are much richer than those in water. As long as you eat more fruits and vegetables at ordinary times, the minerals in the water are relatively insignificant.
How to drink the water from the ultrafiltration water purifier?
In addition to saving money, people who buy ultrafiltration water purifiers mostly do it for the so-called minerals, but do you dare to drink the water directly from the ultrafiltration machine? Do you usually boil water? Everyone who has studied middle school chemistry knows that all kinds of ions in water will become inorganic compounds when heated. For example, what is a scale? Calcium carbonate, magnesium carbonate, calcium sulfate, magnesium sulfate, calcium chloride, magnesium chloride, etc. That is, heating calcium and magnesium ions in water. Calcium carbonate is lime. Can lime be considered beneficial to health? Of course not. Besides, families in China seldom drink cold water all the year round, right?
You said that the merchants said that the ultrafiltered water could be drunk directly. As I said above, your tap water source is not Qiandao Lake or Evian Town in France. Where do you think all the water in your toilet goes? Sewage treatment plant? Do you think the waterworks are reliable? Do you think your ultrafiltration is reliable?
Is the baby suitable for drinking pure water?
Many people care about babies instead of adults, because babies can't eat many fruits and vegetables and can't supplement these minerals. What should I do?
This question is actually very meaningful, but think about how much water and minerals the baby can drink every day.
As for the baby, it is still recommended to breastfeed. Breast milk itself contains many minerals and trace elements. Second, after a few months, the baby should add complementary food in time.
Are there any harmful substances in mineral water?
Most people ignore this problem. Mineral water contains many trace elements, but is it harmful?
For example, there are calcium, magnesium, zinc and potassium in mineral water. Why didn't you think about it? Do you have lead?
If your tap water source contains lead, you buy an ultrafiltration water purifier. The filtered water contains many minerals, but at the same time, advantages and disadvantages coexist. The water purifier cannot be said to filter harmful substances and retain beneficial substances. The water purifier is just a filter, and harmful substances and beneficial substances are treated equally. Therefore, ultrafiltration water purifier merchants like to promote and retain minerals. In fact, they don't tell you, but they also keep some harmful substances!
Is "inferior pure water" groundless?
Speaking of which, many people are curious. Since there is nothing wrong with drinking pure water, and the minerals and trace elements needed by the human body do not need to be supplemented from water, is the view that "drinking pure water is not good" groundless?
In fact, the biggest behind-the-scenes hand of this view should be the stunt made by the merchants selling ultrafiltration water purifiers and mineral water, otherwise what will people take as a selling point? So we can only induce our consumers to buy their products by creating some panic.
conclusion
Don't worry about minerals and trace elements in the water. Generally speaking, you want to supplement minerals and trace elements by drinking water, just like you want to eat through a drinking pipe when you are hungry. It doesn't make sense. The purpose of drinking water is to replenish water, not minerals.
From beginning to end, it is not that mineral water is inferior to pure water, and everyone is encouraged to drink pure water. In fact, buying a water purifier itself is a last resort. You can't have your cake and eat it. We just want to say that the so-called minerals in water are not that important. Don't ignore all kinds of harmful substances such as heavy metals and viruses for a little minerals, and don't believe that those non-RO water purifiers can remove these harmful substances. They are all lying to you. Reference: Which is better, mineral water or pure water? What is the difference?