[Edit this paragraph] Classification of mineral water
(1) According to the main types of mineral water that meet the national standards, it can be divided into nine categories: ① metasilicate mineral water; ② Strontium mineral water; ③ Zinc mineral water; ④ Lithium mineral water; ⑤ Selenium mineral water; 6 bromine mineral water; 7 iodine mineral water; 8 carbonated mineral water; Pet-name ruby mineral water (2) Named according to salinity classification, salinity is the total amount of ions, molecules and compounds contained in unit volume. The salinity below 500mg/L is low, 500- 1500mg/l is medium, and > 1500mg/l is high. Light mineral water with salinity < 1000mg/L and salt mineral water with salinity >1000 mg/l. (3) According to the acidity and alkalinity of mineral water, the pH value is called the negative logarithm value of hydrogen ion concentration in water, that is, pH=- 1g[H+], which is the representative value of acidity and alkalinity. According to GB/t14157-1993 >; The definition of, can be divided into the following three categories of PH value.
Acid water, neutral water and alkaline water.
(4) According to the classification and naming of anions, anions are the main classification, and cations are the secondary classification. Only when the milligram equivalent of anion and cation is more than 25% can they participate in naming. (1) Chloride mineral water, including sodium chloride mineral water and magnesium chloride mineral water; ② bicarbonate mineral water, including bicarbonate mineral water, magnesium bicarbonate mineral water, sodium bicarbonate mineral water and sodium bicarbonate mineral water; ③ Sulfate mineral water, including magnesium sulfate mineral water and sodium sulfate mineral water. [ 1]
[Edit this paragraph] Purchase method
See if the label meets the food labeling requirements, and see if there are product names, registered trademarks, dates, etc. If it is not complete, it is not suitable to buy it. Second, see whether the bottle cap is intact and flat, and whether there is water leakage when the bottle is inverted. Third, see if there are other colors or flocs in the bottle. If there is such a phenomenon, it is not appropriate to buy it. Qualified mineral water should have no peculiar smell when drinking. For example, mineral water with high lead and sodium content is slightly salty; Calcium and magnesium are high and astringent; Mineral water with high carbon dioxide content has a unique sense of excitement. In addition to the above conditions, regular mineral water manufacturers pay more attention to packaging, exquisite and beautiful. Identification of outer packaging: high-quality mineral water is mostly packed in non-toxic plastic bottles with exquisite appearance and fine workmanship; The plastic anti-counterfeiting cover of the bottle cap is twisted off, and some have anti-counterfeiting internal plugs; The surface is covered with labels and beautifully printed. The product name, address and production date are complete, indicating various trace elements and contents in mineral water, and some also indicate the name of the inspection and certification unit. Color and water body identification: high-quality mineral water is clean, colorless and transparent, without suspended matter and sediment, and the water body is not sticky. Smell and taste identification: high-quality mineral water is pure, fresh and tasteless, and some of it has a special taste, such as slightly salty.
[Edit this paragraph] National standard
China's national standard for drinking natural mineral water stipulates that drinking natural mineral water is unpolluted underground mineral water that naturally gushes out from the depths of the ground or is artificially exposed; Contains a certain amount of mineral salts, trace elements and carbon dioxide gas; In general, its chemical composition, flow rate, water temperature and other dynamics are relatively stable within the natural fluctuation range. The "National Standard" also determines the limit indicators that meet the mineral water standards, such as lithium, strontium, zinc, bromine, iodine, metasilicic acid, selenium, free carbon dioxide, total dissolved solids and so on. Only one (or more than one) index meets the above ingredients can it be called natural mineral water. The "national standard" also stipulates the limit indicators and hygiene indicators of certain elements, compounds and radioactive substances to ensure the safety of drinkers. According to the water quality composition of mineral water, generally speaking, the beneficial elements contained in the boundary index has no substantial physiological or pharmacological effects on occasional drinkers. But if you drink mineral water for a long time, it does have obvious nutritional and health care effects on the human body. Take metasilicic acid, lithium and strontium in natural mineral water in China as an example. These elements have biological functions similar to those of calcium and magnesium, which can promote the growth and development of bones and teeth, help bone calcification and prevent osteoporosis. It can also prevent hypertension, protect the heart and reduce the incidence and mortality of cardiovascular and cerebrovascular diseases. Therefore, the content of metasilicic acid is one of the most commonly used and important boundary indicators for evaluating the quality of mineral water in the world. Lithium and bromine in mineral water can regulate the activity of the central nervous system and have the effect of calming the nerves. Drinking mineral water for a long time can also supplement the deficiency of nutrients such as calcium, magnesium, zinc, selenium and iodine in the diet, and has a good effect on enhancing the immune function of the body, delaying aging, preventing tumors, preventing and treating hypertension, gout and rheumatic diseases. In addition, most mineral water is slightly alkaline, which is suitable for the physiological characteristics of human environment, is conducive to maintaining normal osmotic pressure and acid-base balance, promoting metabolism and accelerating fatigue recovery.
[Edit this paragraph] International standards
198 1 year, Europe has a complete mineral water standard. In 1993, the Codex Alimentarius Commission (CAC) proposed the revision of the European regional standard and intended to discuss how to turn it into a unified mineral water standard worldwide. Now, during the discussion, we will compare the limit indicators of some elements and components with our national standards. Mg/ L China GB 8537- 1995 Zinc 5.0 Copper10 Barium 0.70 Cadmium 0.0 10 Chromium (Cr 6+) 0.050 Lead 0.0 10 Mercury 0.00 10 Selenium 0.050 Dongxi -s B- Ni- Europe108-1981Zn5cu1Ba1CD 0.01Cr (Cr 6+) 0.05pb0.05hg0/.
[Edit this paragraph] Drinking tips
Mineral water is not suitable for boiling.
When drinking mineral water, you should drink it without heating, cold drink or slightly heating it, and don't boil it. Because mineral water generally contains more calcium and magnesium and has a certain hardness, calcium and magnesium are in ionic state at room temperature, which is easy to be absorbed by human body and plays a good role in supplementing calcium. If calcium and magnesium are easy to generate scale and precipitate with carbonate when boiling, they will not only lose calcium and magnesium, but also cause sensory discomfort, so the best drinking method of mineral water is to drink at room temperature.
Mineral water can only be refrigerated, not frozen.
"Suitable for cold storage, not suitable for freezing" is due to the supersaturation of calcium and magnesium in mineral water during freezing, and with the decomposition of bicarbonate, white precipitation is produced, especially for mineral water with high calcium and magnesium content and salinity greater than 400mg/L, white flake or particle precipitation will appear after freezing. The analysis data of the laboratory also proves this point. Compared with the analysis of raw water, many kinds of mineral water are frozen. Because of the white precipitation, bicarbonate and calcium ions in the frozen water are obviously reduced, while other components in the frozen water, especially the trace elements beneficial to human body such as metasilicic acid and strontium, have no obvious changes. Therefore, drinking frozen mineral water is harmless to the human body, and drinking frozen water is harmless to those who are greedy for cold. But after all, bottled water has sediment, which affects sensory indicators. In hot summer, people like to drink cool drinks, and mineral water retailers often sell bottled mineral water after freezing it. Therefore, precipitation problems often occur and are returned to the factory. Therefore, the national standard for mineral water (GB 8537- 1995) stipulates that "when bottled mineral water is transported and stored below zero degrees Celsius, anti-freezing measures must be taken".
Babies are not fit to drink mineral water.
People often use "watery" to describe babies for a reason. In infants, water accounts for 70%-80% of their body weight, far exceeding 60% of adults, which is more important for infants. Traditionally, mineral water is collected from deep underground, rich in mineral salts and trace elements, and is a nutrient needed by human body. Children are in a critical period of growth and development, so it is convenient and beneficial to supplement these trace elements and absorb them directly from drinking water. Why not? Therefore, it is not uncommon for babies to drink mineral water, and it has become a fashion move. In response to this phenomenon, Bulgarian medical experts warned that mineral water with high mineral content would threaten the health of babies! This should start with the absorption principle of water. In junior high school physics class, we learned that water can migrate from low concentration to high concentration through osmosis. When drinking water, the concentration of body fluid is higher than that of drinking water, forming a potential energy difference, so that water passes through the cell membrane and is naturally absorbed by cells. When water contains more minerals, the concentration of water is higher, and this potential energy difference is reduced or even reversed, which brings trouble to the absorption of water supply. Just like a flower inserted in a cup of concentrated salt water, it not only absorbs water, but also causes dehydration and dryness-this is because the water concentration in the body is not as good as that in the outside world, and the potential energy balance is broken, leading to the leakage of body fluids. At this time, you may be anxious: if so, then we can't drink strong drinks and soup, right? Don't worry about this, because in addition to the osmotic principle, the absorption of the human body can also transport some protein out of the cell like a ferry, and actively transport the needed substances from the outside to the cell. This physiological process can be unaffected by the concentration difference. It is easier to push the boat with the current than to sail against it. Infiltration is a passive and natural process, which requires almost no energy, while the process of active transport requires relatively much energy. The physiological structure of infants is quite different from that of adults. The digestive system is not fully developed, the filtration function is poor, and the mineral content in some mineral water is too high, which is a big problem for infants. Babies who brew food with mineral water or drink it directly can easily increase the osmotic pressure of food and increase the burden on kidneys. Therefore, in the process of feeding your baby, you can choose some mineral water with local salinity, which is still very good for your baby. In addition, the content of elements in mineral water is basically designed for adult standards, and its content and proportion are a little high for infants, especially some elements are harmful to infants. For example, Germany issued a circular on June 22, 2006, amending the laws and regulations on natural mineral water, spring water and catering water. This revision takes into account the increasing use of natural mineral water in baby semi-finished food, and refers to a survey and evaluation of uranium content in natural mineral water and its health risks. The decree limits the content of uranium, which must be indicated in the label or advertisement of baby semi-finished food. The hardness of mineral water is measured by its mineral content. Generally speaking, mineral water with mineral content less than 50 mg per liter is called "ultra-low mineral content"; 50 ~ 500 mg is "low mineral content", and this mineral water has a soft taste and a certain sweetness; The mineral content of most drinking mineral water is between 500- 1500mg; Mineral water with more than 1500 mg per liter is called "high mineral content", which is mostly used in sports, saunas and other places where there are many minerals lost by human body. Bulgarian pediatrician Maslarska pointed out that for infants, the mineral content in each liter of water should not exceed 100 mg, of which sodium should be less than 20 mg and fluorine should be less than 1.5 mg. Exceeding this threshold may pose a threat to the kidneys of newborns. Obviously, most mineral water is too hard for children. Some parents will ask, is it better for me to give my baby pure water? The answer is still "no"! The purified water after secondary treatment is not suitable for the digestive system of newborns. As mentioned earlier, the concentration difference inside and outside the cell is the driving force for water absorption through osmosis. Pure water does not contain any minerals, which causes a big gap between the two and also causes absorption obstacles. In addition, drinking purified water for a long time will also make children lack some minerals, and some industrial raw materials used in the purification process of purified water may have adverse effects on infant liver function. Since you don't eat hard or soft, what kind of water is the best for children to drink? According to research, boiling tap water and then cooling it to room temperature is most beneficial to health. After boiling, the gas contained in water is reduced by half, and the cohesion between water molecules is increased, which is closest to the characteristics of water in human cells, so it is easy to penetrate the cell membrane and be absorbed by the human body. If the local tap water has obvious rust or the smell of bleaching powder is too strong, you can use the "Baby love the water" special water purifier specially designed for infants to filter impurities (rust, lead, residual chlorine, parasites, etc. ) put it in tap water that is not good for babies, then boil it and cool it for babies to drink or brew milk powder, rice flour, etc. It is worth noting that aluminum pot should not be used to boil water, otherwise excessive intake of aluminum ions will affect the baby's bone and nerve development; Drinking fountains are easy to cause secondary pollution and should not be used. In fact, for drinking water, the country is revising it every year and developing in a healthy direction. For example, in 2008, China revised the previous standard of mineral water 8537-95, which undoubtedly upgraded drinking water to a higher level for consumers and was in line with the world. The history of drinking mineral water abroad has been nearly a century. Mineral water is increasingly favored by consumers because of its scarcity and health care function.
[Edit this paragraph] The cause of white precipitation in mineral water.
Many consumers report that mineral water has scale and white floating objects after heating. Relevant departments attached great importance to it, launched an investigation, and made a detailed explanation on the relevant issues that should be raised. It is understood that many mineral water enterprises often encounter complaints about scaling and floating objects after boiling this mineral water, and often receive calls from users to reflect similar situations. In view of this situation, they collected water samples in time for laboratory analysis and consulted relevant experts. This phenomenon reflected by users is precisely the characteristics of mineral water, a high-quality karst water. According to experts, at present, the salinity of mineral water is about 80-450mg/l, and it contains strontium and metasilicic acid. It is good for human health. The PH value is 6.5-8.0, which is the best value for drinking water promulgated by the state. The content of bicarbonate ion is high, but the content of chloride ion and sulfate ion is very low. It also contains many trace elements beneficial to human health, such as bromine, iodine, zinc and lithium, and all the indexes have been reached. Mineral water has the problem of scale. Experts say that water is hard, and the hardness of water is mainly formed by calcium and magnesium ions. According to the composition of soluble salts, it can be divided into temporary hardness and permanent hardness. When water boils, white precipitates out, and calcium and magnesium ions in water sink to the bottom. Carbonate and bicarbonate are decomposed by heat to produce magnesium carbonate and calcium carbonate, which is "scale". From the composition of water, no matter what kind of water is heated, it will produce scale. White floating objects are produced when mineral water is boiled, because mineral water is rich in metasilicic acid. When water boils, magnesium silicate and calcium silicate are formed. These minerals are insoluble in water even after boiling, but become hollow tiny particles floating on the water surface, forming white floating objects on the water surface. This is completely normal, harmless to the human body, and can be used with confidence. After mineral water is heated or refrigerated, it will produce a white precipitate the size of a needle tip, called calcium carbonate, which is the same thing as the white powder formed by crushing calcium tablets. Calcium is dissolved in mineral water deep in the stratum, and the water temperature is about 19 degrees Celsius. Mineral water is pumped into water treatment equipment by deep well pump in mineral water plant, and then filled and transported. The water temperature changed and calcium began to precipitate. If it is reheated or refrigerated, the precipitation of calcium will increase, which is the white precipitation we see. ? The national standard GB8537- 1995 "Sensory Requirements" specifically stipulates that a small amount of natural mineral salts are allowed to precipitate in visible objects, which refers to the above phenomenon. Calcium carbonate is one of the important sources of calcium in human body, and its retention rate in human body is 34%, which is higher than other calcium agents. It is a cheap and good calcium supplement product. When the hardness of raw water is above 100ppm, this phenomenon will appear after the pure water is heated and boiled, and the higher the hardness, the more obvious it will be. In fact, these substances are naturally formed calcium and magnesium concentrated condensate after pure water is heated and boiled, which is harmless or even beneficial to human health and does not need to be deliberately removed. After pure water is heated and boiled, it will drive away the carbon dioxide in the water, but the PH value in the water will increase slightly. At this time, calcium carbonate and magnesium carbonate in water are easier to precipitate, suspend and condense. Many areas abroad have the habit of drinking cold and clean water, so the above situation is relatively rare. However, Chinese people have always had the habit of cooked food, and they often boil water for drinking, so there are relatively many cases of calcium and magnesium condensation. In fact, in addition to cooking needs, raw drinking water can retain more trace elements and oxygen content in the water, which is good for human bones, heart and blood vessels. Experts in soft water and hard water suggest that drinking water with hardness of 150-450 mg/L is most beneficial to human health.
Mineral water is mineral-rich water, and its hardness and iron solubility are higher than pure water and tap water. Experiments show that mineral water with hardness below 170 mg/L, soluble solids below 300 mg/L and iron below 0.005 mg/L keeps the characteristics of tea, and is the first choice for tea making in teahouses. If you use mineral water with minerals higher than the above standards to make tea, it will affect the color, aroma and taste of tea, but it will not affect the quality of tea and human health. Because of poor senses, it often causes some people's "disgust" and misunderstanding. Why does mineral water make tea darker? Because tea contains a certain amount of protein, tannic acid, pectin, tea polyphenols and other components, they are complexed with calcium, magnesium and iron in mineral water to form turbid precipitate, which affects the turbidity of tea. The oxidation of iron ions in water replaces tannic acid and tea polyphenols in tea, turning colorless carboxyl groups into colored carbon groups, thus deepening the chromaticity of tea, which is brown and affects the senses, but it is harmless. For example, people often cut apples with iron knives. After air oxidation, the pulp on the surface of the incision gradually turns brown, and the principle is the same. This is the reason why iron interacts with tannin pectin. The reaction in new tea is obviously normal, but the taste and trace elements remain unchanged.
According to scientific determination, the average values of various elements and trace elements in human blood are closely related to the abundance values of elements in the crust. Mineral water dissolves the minerals in the relevant strata in the earth's crust, so the trace elements and minerals necessary for human body contained in mineral water are also the closest to human body, and their functions are no less than vitamins, and their functions are much greater than we realize. Some people say: "The minerals and trace elements we need mainly come from food. No minerals in water will not affect the overall situation." More than a dozen trace elements, such as iron, zinc, silicon, strontium, fluorine, copper, boron, bromine, iodine, lithium, selenium, chromium, molybdenum, germanium, cobalt and vanadium, which are necessary and beneficial to human body, mainly come from food, but most of the trace elements in water exist in ionic state, which are easier to penetrate into cells and be absorbed by human body. Due to the influence of plant fiber and phytic acid, the absorption of trace elements in food is mostly less than 30%, and some are less than 10%. The absorption rate of trace elements dissolved in water is as high as over 90%, and people drink more water than they eat in a day, and the insufficient part must be supplemented by drinking water. Some people also said: "minerals and trace elements are lacking, so I can supplement nutrients containing trace elements and minerals." It doesn't matter whether there are trace elements and minerals in the water. " We say that nutrition can supplement trace elements and minerals, but the function of trace elements and minerals in water is not only the function of nutrients, but also plays a major role in maintaining the normal structure of water. After removing minerals, the structure and function of water have changed. From the research progress of molecular biology and nutrition, water not only plays the role of quenching thirst and carrier, but also directly participates in biomass metabolism, energy metabolism and information.
[Edit this paragraph] Don't drink mineral water as mineral water.
Natural mineral water refers to unpolluted underground mineral water that naturally gushes out from deep underground or is excavated artificially, and contains a certain amount of minerals and trace elements. Under normal circumstances, its chemical composition, flow rate, water temperature and other dynamics are relatively stable within the natural fluctuation range, and the water quality boundary indicators meet the national standards. Drinking mineral water for a long time does have obvious nutritional and health care effects on human body. Natural mineral water is delicious, crystal clear, refreshing and cool. Cooking rice and porridge is sweet and delicious, and making tea is cool and mellow, which is favored by consumers. Mineral water is made by adding synthetic mineral liquid on the basis of pure water. Some finished water has a small amount of sediment and color, and its turbidity is generally greater than that of natural mineral water. Some people call it imitation mineral water. A spokesperson of a world-renowned beverage company even publicly admitted that the basic source of mineral water is tap water. Because there is no national standard, the mineral types and contents of mineral water produced by different enterprises are different. Some even add chemical reagents directly into the water, and some use mineral concentrate with unknown sources. The safety and effectiveness of these additives have not been demonstrated, and the content has no scientific basis. The contents of minerals and trace elements in natural mineral water are stable and generally exist in ionic state, which is easy to be absorbed by human body, while the contents of trace elements in synthetic mineral water are unstable, which is greatly influenced by human factors. It is difficult to grasp the boundary index between harmful and beneficial concentrations of some trace elements by artificial addition. For example, the selenium content of 0.0 1-0.05 mg/L can prevent cancer and enhance human immune function, but it will cause selenium poisoning when the content is greater than 0.05 mg/L. The iodine content of 0.2 ~ 0.5 mg/L is beneficial to human body, but it will cause iodine poisoning when the content is higher than 0.5 mg/L, which is not conducive to human health. Expert advice: drinking water is good for health. Consumers should drink more natural mineral water instead of mineral water.
[Edit this paragraph] Mineral water, beauty method.
Drinking mineral water is a unique beauty method.
Drinking mineral water is a unique beauty method. Water is an important part of living things. Without water, there is no life. Lack of water will make the skin look dry, wrinkled and dull. According to international beauty experts, different water also has its unique skin care and beauty function. (1) Mineral water contains many minerals such as calcium, magnesium, sodium and carbon dioxide, which can strengthen the spleen and stomach, stimulate appetite and moisturize the skin. (2) Add orange juice, tomato juice, kiwi fruit juice, etc. Drinking water can help the pigmentation fade, maintain skin tension and enhance skin resistance. (3) Adding pollen to drinking water can keep youthful vitality and resist aging. Pollen contains a variety of amino acids, vitamins, minerals and enzymes. Natural enzymes can change cytochrome, remove freckles and spots, and keep skin healthy.
Anti-aging method of mineral water
Pour mineral water into a small bottle with a nozzle, spray it directly on your face and pat it gently with your hand, so that the metasilicic acid in mineral water can be fully absorbed while replenishing moisture to your skin. So as to increase skin elasticity, stretch facial fine lines and delay skin aging.
Try mineral water beauty
Mineral water has become the new favorite of women who love beauty because of its rich metasilicic acid. Metasilicic acid is an essential element in human skin connective tissue, articular cartilage and connective tissue, which can increase skin elasticity and maintain the integrity of tissues around elastic fibers. Drinking mineral water rich in metasilicic acid often can keep your skin shiny, white and tender. The beauty method of spraying mineral water directly on the face is increasingly favored by many women who love beauty. The specific method is to spray mineral water rich in metasilicic acid directly on the face and pat it gently with your hands, so that the metasilicic acid in mineral water can be fully absorbed while replenishing water to the skin, thereby increasing skin elasticity, relaxing facial fine lines and delaying skin aging. This cosmetic method is very popular among Japanese women, especially among professional women. In fact, this beauty method is very simple and convenient, just at home. First of all, you should go to the supermarket to buy a bottle of real natural mineral water, such as Linbi mineral water, which contains more than 30 kinds of essential trace elements, minerals and components beneficial to human health, such as metasilicic acid, strontium, potassium, calcium and magnesium. Its delicious value and health value greatly exceed the evaluation value, and it is a rare healthy water body. At present, Shanghai Linbi Beverage Sales Co., Ltd. has opened a water reservation hotline. You only need to dial 65470808, and Linbi mineral water will be delivered to you within the agreed time, so that you can enjoy the truly delicious and healthy natural mineral water without leaving home. You just need to put water into a bottle with a nozzle, and you can beautify yourself at any time. Try the mineral water beauty method, and you will find yourself more and more beautiful!
[Edit this paragraph] Mineral water is an ideal natural drink for human beings.
Drinking mineral water will produce urinary calculi unscientific.
Cao Zhijun, Associate Professor of Clinical Medicine, Capital Medical University —— With China's reform and opening up, the upsurge of developing mineral water has risen rapidly. This is a manifestation of the continuous improvement of people's lives and the gradual enrichment of materials in our country. This is a good thing that will greatly improve people's health and should be welcomed with open arms. However, some people are skeptical and casually denounce that "drinking mineral water will produce urinary calculi." I think this statement is unscientific and irresponsible. -Medically speaking, the urinary system (including kidney, ureter, bladder and urethra). It produces stones for special reasons. Including environmental factors, high temperature and high humidity areas, people sweat too much, and urine concentration leads to supersaturation of salt that produces stones; Lack of magnesium ion in soil; Individual factors: vitamin A deficiency, lower urinary tract infection, obstruction and foreign body; Metabolic disorders (such as hyperthyroidism and parathyroid carcinoma) lead to hypercalcemia, while gout leads to hyperuricemia and hyperuricemia. There are three main components of stones: calcium oxalate, phosphate and urate, all of which must crystallize in acidic urine. As far as the composition of mineral water is concerned, all the water quality that meets the drinking mineral water standards has been inspected and approved by the state specialized agencies and is safe. Scientifically speaking, drinking mineral water will not induce urinary calculi, but has preventive and therapeutic effects. Based on the following three aspects: 1. Drinking mineral water regularly can wash internal organs, dilute urine, control and prevent urinary system infection; 2. Mineral water alkalizes urine to prevent calcium oxalate, phosphate and urate from crystallizing out; And has the function of dissolving calculus. 3. Contrary to the lack of magnesium ions in soil, magnesium ions in mineral water can promote the dissolution of calcium oxalate in urine, and can also combine with excess calcium ions in water to form compounds that are not absorbed by blood and are discharged from feces. Therefore, it is a myth that drinking mineral water will produce urinary calculi. On the contrary, I suggest that patients with urinary calculi drink more mineral water as a health care measure and preventive means.
Mineral water and urinary calculi
Xu Fang, a researcher at the Institute of Environmental Health Testing, Chinese Academy of Preventive Medicine —— Mineral water is different from ordinary groundwater because it contains a certain amount of minerals, trace elements or free carbon dioxide gas that is beneficial to human health. Because this kind of water is not polluted by outsiders and contains no heat, it is an ideal healthy drink for human beings. Man needs minerals, but he can't make them himself. They can only maintain their normal physiological functions through drinking water and food. If this acquisition relationship is unbalanced, it will be morbid. Supplementing minerals can restore health. We have carried out animal anti-tumor experiments on more than a dozen representative mineral waters in China, and the results show that these mineral waters have different anti-tumor effects. Some epidemiological survey data also show that mineral water does have a great role in promoting human health and prolonging life. Potassium, sodium, calcium and magnesium in mineral water are necessary to maintain normal physiological functions of human body. Bicarbonate can promote the recovery of gastrointestinal diseases. Sulfuric acid monochloride can promote gastrointestinal peristalsis and treat constipation. Metasilicic acid contributes to bone calcification and promotes growth and development. Silicon can also protect the integrity of arterial structure and reduce the incidence of human coronary heart disease. Mineral water in China contains more metasilicic acid. -Trace elements participate in the metabolism of enzymes, hormones and nucleic acids in the human body and have great biological functions. For example, enzymes formed by iron, copper, zinc and cobalt and thyroxine formed by iodine can promote growth and development. The trace elements of mineral water in China are strontium, followed by zinc, lithium and selenium. -Strontium is a normal component of bones and teeth, although it is very small in human body. Mainly concentrated in places where ossification is strong. Some people have summarized the mortality of some types of cardiovascular diseases and found that strontium and other elements can reduce the mortality of these diseases. Zinc is an important trace element necessary for human body. As early as the end of 1950s, it has been proved that zinc is a necessary cation for testis to maintain normal physiological function. Population survey found that zinc deficiency in men can cause primary and secondary dysplasia, and zinc is more important for infants with vigorous growth and development. Selenium is also an essential element for human body. In recent years, the research on selenium shows that selenium can enhance the immune response of body fluids and cells and has anti-cancer effect. Lithium exists mostly in the form of compounds in nature, but it is not listed as an essential element for human body. Lithium can regulate the activity of central nervous system, calm mood, improve hematopoietic function and improve human immune function. Drinking natural mineral water can obtain mineral salts and various trace elements necessary for human physiology, which is really a precious gift given by nature.