1. Drinking pure water is not safe
China Green Food Development Center said: "Safety, high quality and nutrition" reflect the quality characteristics of green food. The first characteristic is its safety, which means that the food will not cause harm to the body when consumed in a reasonable manner and in normal consumption. As we all know, an adult needs to drink about 2000 ml of water every day to maintain a balanced water balance. If an adult drinks about 2000 ml of pure water every day, will it cause harm to the body in the long run? Professor Jin Riguang from the Water Resources Research Center of Beijing University of Chemical Technology said: “The water molecules of pure water are extremely connected in series and have a coiled structure, which makes it difficult for them to pass through the cell membrane, which will cause the beneficial life-related elements in the body to be lost outside the body. Some sensitive people become more and more depressed the more they drink. Without quenching thirst, the more you drink, the more you want to drink, which reduces the body's immunity and even causes certain diseases. "Professor Wang Shiwen, an expert on cardiovascular diseases in my country and the Chinese Academy of Sciences, pointed out: "Long-term drinking of soft water with few minerals can cause atherosclerosis. One of the reasons. "The Naval Medical Research Institute provided a clinical response: "Soldiers on Zhoushan Island generally felt weak after drinking rainwater for half a year. "After testing, the rainwater lacks minerals and its water quality is similar to pure water." This is an example of physical harm caused by reasonable drinking methods and normal drinking amounts. Can this be said to be a safe food for purified water? Hundreds of millions of adults in our country drink the same amount of tap water, natural water or mineral water as purified water every day (about 2000 ml). After drinking it for more than ten or decades, we have not heard or seen a single case of harm to the body. According to the report, in contrast, regular drinking of tap water, natural water and mineral water is safe, but regular drinking of pure water is unsafe.
2. Purified water has no nutrients
China Green Food Development Center said: "In addition to safety, high quality and nutrition are also important characteristics of green food. There are Specifically, it requires excellent sensory characteristics, quality and nutritional value. "In this way, green food not only requires excellent sensory characteristics and quality, but also requires excellent nutritional value. Does purified water have excellent nutritional value? The definite answer is: No! As we all know, when purified water is processed, while pollutants in the water are removed, trace elements and macroelements necessary for the human body are also removed from the water. Water is an important way for the human body to obtain minerals, and it is also the main source under special circumstances. Professor Wang Zhansheng from the Department of Environment at Tsinghua University emphasized: "At least the current dietary structure of our residents is relatively simple and cannot comprehensively and naturally supplement various elements. Therefore, the nutritional effect of drinking water cannot be ignored." Water nutrition expert and Chinese medicine practitioner Professor Li Fuxing, director of the Professional Committee for the Promotion of Healthy Drinking Water, said: "It has been confirmed that there are nearly 10 trace elements in water that are necessary for the body. With my country's current dietary structure, many trace elements are difficult to obtain from food and are mainly obtained from water. Water The absorption rate of calcium can reach more than 90%, while the absorption rate of calcium in food is only 30%. "Professor Zhu Huigang of Shanghai Medical University, leader of the National Drinking Water Hygiene Group, emphasized: "For drinking water, purer is not always better. Inorganic elements in water are in the form of dissolved ions and are easily absorbed by the body. Therefore, drinking water is an important way for people to absorb minerals. Purified water contains little or no minerals. In the past, it was mainly used for thermal power plant boilers, electronic industry washing, etc. Integrated circuit boards, etc. Drinking purified water should be done with caution, especially for children, the elderly and pregnant women. "Healthy drinking water proposed by the World Health Organization must meet six conditions, namely: it does not contain harmful substances and contains Appropriate amount of minerals, moderate hardness, rich oxygen content, small water molecule clusters, and slightly alkaline pH value. Purified water basically contains no minerals, has a hardness close to 0, contains very little oxygen (distilled water is 0), has large water molecule clusters (>100Hz), and has a pH value of about 6.0, which is weakly acidic. The drinking water quality standards of Canada and Russia stipulate that the hardness should not be less than 50 mg/L (calculated as CaCO3), and the drinking water quality standards of the European Union and the United States must maintain a hardness of more than 60. Obviously, pure water does not meet the requirements of healthy water. It has no nutrients, let alone excellent nutritional value. So how can it be called green food?
3. Long-term drinking of pure water affects your health
Water is the most important of the six nutrients that humans rely on for survival. The minerals and trace elements in the water are of vital importance to human health. It's important.
Professor Jin Riguang from the Life Power and Water Resources Research Center of Beijing University of Chemical Technology pointed out: “Water plays a very important role in the origin and continuation of life. In this sense, we cannot say that water is used to quench thirst. The far-reaching significance of water is to maintain human health and extend life. "When people choose drinking water, they should pay more attention to whether it is beneficial to health. Is pure water beneficial to health? Dr. Chai Weizhong from the Public Nutrition and Development Center of the National Development and Reform Commission emphasized at the "2005 China Drinking Water Industry High-Level Forum" that "purified water has a strong ability to dissolve minerals and trace elements. After people drink a large amount of purified water, their bodies The original trace elements, nutrients and nutrients will be quickly dissolved in purified water and then excreted from the body, causing the nutrients in the human body to lose balance and causing a health deficit, which is not good for health. Many European countries now stipulate that purified water cannot be used. Directly as drinking water." Martin Fox, MD, a famous American water expert, emphasized in the book "Healthy Water": "Drinking polluted water and desalted water (that is, pure water) will cause harm to our health." my country's Naval Medical Research Institute Researcher Ding Nanhu of the Ministry of Water Supply and others conducted a seven-year experiment on mice from 1987 to 1994, allowing them to drink distilled water for a long time. The results found that the mice grew slowly, lost weight, had osteoporosis, muscle atrophy, and pituitary gland. The function of the renal system is disrupted. The troops stationed on an island in Dalian used to drink homemade distilled water (purified water). Over time, the officers and soldiers suffered from various mineral-deficient diseases. Chen Mengxiong, a senior academician of the Chinese Academy of Sciences, believes: "Long-term drinking of purified water will reduce the body's intake of minerals and beneficial elements. In terms of health effects, natural water is better than purified water, and mineral water is better than natural water." A large number of domestic and foreign Animal experiments and clinical reactions have proven that drinking pure water for a long time is harmful to health. To this end, the Shanghai Municipal Education Commission issued a notice: In principle, starting from the 1997 school year, primary and secondary schools and kindergartens should no longer use pure water as drinking water for students and young children. The Shanghai Administration for Industry and Commerce has also issued a notice: Pure water advertisements should not promote "long-term drinking" or use pure water to prepare milk powder, cook rice, etc. In March 2003, some primary and secondary school students in Hangzhou bid farewell to purified water, and more than 100,000 primary and secondary school students have been drinking mineral water. Recently, the China Consumers Association officially issued a warning: teenagers, children and the elderly should not drink purified water for a long time. Green food takes health as its basic goal, but drinking pure water for a long time will not only fail to promote health, but will cause harm to the body. So how can it be called green food?
Since drinking purified water entered the market, what kind of water to drink has been a topic of great concern to consumers. After several years of fierce debate, the conclusion is clear. Long-term drinking of purified water is not good for health. Mineral water is ideal drinking water. Zhu Huigang, leader of the National Drinking Water Sanitation Group, professor and doctoral supervisor at Shanghai Medical University, said: "Mineral water is different from ordinary drinking water. It contains trace elements such as lithium, strontium, zinc, iodine, selenium, etc., and some even contain relatively It is rich in macroelements, so it can supplement the trace elements and macroelements needed by the human body and regulate the acid-base balance of the human body. These characteristics are not available in ordinary drinking water. "Chinese medicine. Researcher Xu Fang, senior health expert at the Environmental Control Center, pointed out: "Mineral water is distinguished from ordinary groundwater by containing a certain amount of minerals, trace elements or carbon dioxide gas that are beneficial to human health. Because this water has not been polluted by external man-made , contains no calories and is an ideal health drink for humans. We have conducted animal tests on more than a dozen representative mineral waters in our country, and found that these mineral waters have varying degrees of anti-tumor effects. Some epidemiological investigations Data also shows that mineral water has a great effect on promoting body health and prolonging life. “Drinking natural mineral water that meets medical mineral water quality standards can prevent, treat and alleviate symptoms of certain diseases.
Water nutritionist Li Fuxing said that although purified water is very clean, it may have some hidden dangers to the human body. This kind of water that does not originally exist in nature is a kind of degraded water. Its quality has declined and its effect on the human body has been "degraded". Even natural water that has not been polluted will "degrade" after losing all the mineral elements in the water through a series of purification processes such as reverse osmosis and losing the scaffolding on which the small molecular groups support the structure. And lose its physiological function. In the final analysis, pure water is pure stagnant water with no activity.
As the saying goes, "If the water is extremely clear, there will be no fish." That is because water that is too clear contains very few minerals and is not conducive to the growth of organisms. The same is true for people drinking water. Long-term drinking of pure water will reduce the body's immune function and cause the body to lose some beneficial nutrients. The elderly, especially those with cardiovascular disease, diabetes, children, and pregnant women should not drink this water for a long time.
Due to the widespread use of pesticides and insecticides, as well as the pollution of water sources by industrial wastewater and domestic garbage, drinking water in some areas has become unsatisfactory, so families in some cities have begun to buy pure water for drinking. phenomenon. Not to mention whether the distilled water and purified water sold on the market are qualified, long-term drinking of distilled water and purified water is potentially harmful to health. First, those who often drink distilled water give up the source of 5% of the trace elements needed by the human body from the water, and also give up the health-protecting elements calcium and magnesium ions in the water. Secondly, pure water has the highest solubility. As a carrier of human waste, it is bound to dissolve more useful elements in the body and excrete them out of the body. To make distilled water and purified water, you need to boil the source water to evaporate, condense and recover it, or produce it by reverse osmosis. In this process, other substances that evaporate when heated in the source water used to make distilled water will also be generated along with the distilled water. And condensed into distilled water, such as phenols, benzene compounds and even evaporable mercury that are harmful to health. The reverse osmosis method will not obtain theoretically pure water. In order to obtain pure water or ultrapure water, it must be distilled twice or three times, and other purification methods must be added. It is unlikely that this will be done for distilled water on the market for drinking, and there is no need to do so. It has been reported that some children in a certain city in my country became ill due to drinking pure water for a long time. Drinking water is necessary for people to survive. What we need is clean, natural drinking water that is harmless to the human body. We do not necessarily need to drink pure and high-priced distilled water or purified water. Of course, drinking distilled water occasionally is okay.
"Mineral water", "purified water", "space water", "distilled water", "magnetized water"...
In recent years, "×× water" has been promoted Advertisements for "××水" came from all directions and entered millions of households with overwhelming momentum. It seems that the tap water in China is no longer drinkable and will "abdicate" to these "waters" and "waters" with various names.
However, according to reports, a children's hospital admitted nine children with muscle tremors and trembling eyelids. After examination by experts, they believed that it was caused by drinking a large amount of certain "water", which caused calcium and potassium deficiency. .
The so-called "purified water" refers to water that has been treated, purified and purified from natural water through several processes. The author once visited a factory that produces pure water. The factory uses natural geothermal mineral water, which is then processed through electrodialysis, ion exchange, super filtration, ozone sterilization, oxygen treatment, and then through an automated filling line to bottle pure water. This kind of pure water has completely eliminated all kinds of ions in the original geothermal mineral water. It can be seen that during the production process of pure water, on the one hand, germs, organic matter and certain toxic elements harmful to the human body are removed; on the other hand, trace elements and essential minerals that are beneficial to human health are also removed.
Human beings are not special supernatural beings. Human health depends on the nutrients we absorb from drinking water or food. These nutrients are composed of many chemical elements. For example, oxygen, hydrogen, nitrogen, calcium, phosphorus, sodium, potassium, etc. They are found in large amounts in the human body. These elements not only constitute various cells, tissues and organs of the human body, but also have many special biological functions. Although some trace elements, such as zinc, selenium, fluorine, etc., are present in minute amounts in the human body, they are indispensable components in vitamins, hormones, and enzyme systems and are responsible for specific biological functions.
Drinking water is an important way for the human body to absorb potassium, calcium, magnesium and other inorganic elements from the natural environment. For example, potassium is the main cation in cells and plays an important role in maintaining the normal structure and function of cells. Potassium deficiency can cause myocardial necrosis.
Let’s talk about calcium. Calcium is also an indispensable element in the human body. The main component of bones is calcium, and blood also contains a certain amount of calcium ions. Without these calcium ions, the skin would be scratched and the blood would not clot easily. Calcium can also inhibit the absorption of harmful elements such as lead and cadmium. During the growth and development of babies, their bones continue to grow and require sufficient calcium. When there is too little calcium in the human body, the myocardium becomes weak and the contraction is incomplete, while the excitability of the skeletal muscles increases, causing muscle twitching, rickets and osteomalacia.
According to data reports, 1/3 of children in my country are zinc deficient. Zinc deficiency in children can cause mental retardation and reduced learning ability. Zinc deficiency in pregnant mothers can cause congenital malformations in the fetus. Zinc deficiency can also affect the normal development of the human brain, heart, pancreas, and thyroid gland. Foreign studies have shown that zinc deficiency in the human body can cause many diseases, such as dwarfism, diabetes, hypertension, underdevelopment of reproductive organs and secondary sexual characteristics, male infertility, etc. Of course, excessive zinc intake by the human body also has adverse effects.
Selenium deficiency in the human body can cause heart disease, hypertension, Keshan disease, etc. Selenium can also reduce the incidence of gastric cancer, intestinal cancer, and liver cancer.
Magnesium is another essential element for the human body. Magnesium ion is one of the main cations in human cells. Magnesium is also an important element in many enzyme system reactions. Magnesium deficiency may cause local necrosis and inflammation of cardiac and skeletal muscles. In areas where magnesium is deficient in drinking water, cancer rates tend to be higher.
So, if you drink pure water regularly, the inorganic elements such as potassium, calcium, and magnesium that the human body needs will be gone, and the various trace elements such as zinc, selenium, and fluorine that the human body needs will also be gone. Over time, it will inevitably cause nutritional imbalance in the human body. Especially infants, young children and teenagers are in the stage of intellectual development. In addition, they are active and consume a lot of inorganic salts and minerals. Frequent drinking of pure water will have an adverse impact on their healthy growth.
In areas with low fluoride drinking water, dental caries often occur due to insufficient fluoride. The fluoride the human body needs mainly comes from drinking water. When the fluoride content of drinking water is less than 0.5 mg per liter, the prevalence of dental caries is as high as 70% to 90%; when the fluoride content of drinking water is 0.5 to 1.0 mg per liter, the prevalence of dental caries is 40%; when the fluoride content of drinking water is 40% When the amount of fluoride is 1.5 mg, the prevalence of dental caries is less than 10%.
In short, humans are basically adapted to the hydrogeochemical environment in which they live. Water is the most active substance in the natural environment. The physical properties and chemical composition of natural water are a comprehensive reflection of various factors such as climate, topography, hydrology, geology, soil, and vegetation in the environment. Drinking water is an important way for the human body to absorb inorganic minerals and trace elements from the natural environment. Really high-quality mineral water is an ideal choice for human drinking water. Long-term drinking of pure water, "space water", and distilled water will cause the loss of useful substances in the body and is not beneficial to the body. The more purified water you drink, the higher the incidence of dental caries, which just illustrates this problem.
Using purified water for a long time is not good for the body. Although purified water seems to be very convenient to use, from the perspective of the purified water process, because it has been purified many times, although it is pure, it is While filtering impurities, it also filters out the minerals that are beneficial to the human body that originally existed in the water. In this way, when people drink water, they cannot replenish some necessary minerals for the human body like drinking tap water. Living like this for a long time , which is not good for your health, so it is recommended that you use the most common method - boil tap water to drink. Although it is more troublesome, tap water that has been sterilized by high temperature does not contain bacteria, and it also retains minerals useful to the human body. , which is good for the body.
However, sometimes there are many guests at home, and it is definitely too late and not enough to boil water. Purified water is still a good choice.