Chinese Green Food Development Center says: "Safe, high-quality and nutritious" reflects the quality characteristics of green food. The first characteristic is its safety, that is to say, in a reasonable way of consumption and normal consumption of food will not cause harm to the body's characteristics. As we all know, an adult needs to drink about 2000 milliliters of water every day to maintain the balance of water income and expenditure. If an adult drinks about 2000 milliliters of pure water every day, will it cause harm to the body in the long run? Beijing University of Chemical Technology Water Resources Research Center, Professor Jin Riguang said: "Pure water water molecules are extremely tandem and linear grouping structure, not easy to pass through the cell membrane, which will lead to the loss of beneficial life-related elements in the body to the outside of the body, some sensitive people drink the more the more the thirst is not quenched, the more they drink the more they want to drink, lowering the body's immunity, and even cause some kind of disease." China's cardiovascular disease experts, the Chinese Academy of Sciences courtyard soil Professor Wang Shiwen pointed out that "long-term consumption of soft water with few minerals is one of the causes of atherosclerosis." The Naval Medical Research Institute provided a clinical response, "Zhoushan island warriors generally felt weak after drinking rainwater for six months." The rainwater was tested for lack of minerals and its water quality was similar to pure water. This is an example of the harm caused to the body in the case of reasonable drinking methods and normal drinking volume, which can say that pure water is a safe food? China has hundreds of millions of adults drink the same amount of water every day with pure water (2000 ml or so) of tap water, natural water or mineral water, drinking more than ten years, decades have not heard of and did not see a case of harm to the body of the report, compared to the regular drinking tap water, natural water and mineral water is safe, often drink pure water is not safe.
Two, pure water has no nutrition
China Green Food Development Center said: "In addition to safety, high quality, nutrition is also an important feature of green food, green food product standards have a specific embodiment of the requirements of its excellent sensory characteristics, quality quality and nutritional value." In other words, green food not only requires excellent sensory characteristics and quality, but also requires excellent nutritional value. Pure water has no good nutritional value? Can be answered with certainty: no! As we all know, pure water processing, in the removal of pollutants in the water at the same time also removed from the water essential trace elements and macronutrients. Water is an important way for the human body to obtain minerals, under special circumstances or the main source. Professor Wang Zhansheng of Tsinghua University's Department of Environment emphasized, "At the very least, the existing dietary structure of our residents is relatively single, and can not comprehensively and naturally replenish all kinds of elements, so the nutritional benefits of drinking water still can not be ignored." Professor Li Fuxing, water nutrition expert and director of China Medical Promotion Association Healthy Drinking Water Professional Committee, said, "It has been proved that there are nearly 10 kinds of trace elements in water that are essential to the body. China's current dietary structure, many trace elements are difficult to ingest from food, mainly from water. The absorption rate of calcium in water can reach more than 90%, while the absorption rate of calcium in food is only 30%." Professor Zhu Huigang, head of the National Drinking Water Hygiene Group and a professor at Shanghai Medical University, highlighted, "For drinking water, it is not the purer the better, the inorganic elements in the water are in the form of dissolved ions, which are easy to be absorbed by the organism, so drinking water is an important intake pathway for people to consume minerals. Pure water contains little or no minerals, in the past, mainly used in thermal power plant boilers, electronic industry washing, integrated circuit boards. Drinking pure water should be done with caution, especially for children, the elderly and pregnant women is not suitable." Healthy drinking water proposed by the World Health Organization must meet six conditions, namely: free of harmful substances, contain the right amount of minerals, moderate hardness, rich in oxygen, small water molecule groups, and a weak alkaline pH. Pure water basically does not contain minerals, hardness is close to 0, very little oxygen (distilled water is 0), water molecule group (> 100Hz), pH value of 6.0 or so, is weakly acidic. Canada and Russia's drinking water quality standards stipulate that the hardness shall not be less than 50mg / L (CaCO3), European **** body and the United States drinking water quality standards to maintain the hardness of more than 60. Obviously pure water does not meet the conditions of healthy water, no nutrition, not to mention the excellent nutritional value, how can that be called green food?
Three, long-term consumption of pure water affects health
Water is the most important of the six nutrients on which human survival, minerals and trace elements in the water is essential to human health. Beijing University of Chemical Technology Life Dynamics and Water Resources Research Center Professor Jin Riguang pointed out that: "water for the origin of life and the continuation of life plays a fairly important role in the process, in this sense, we can not say that water is used to quench the thirst of the far-reaching significance of water is to maintain the continuation of human health life." People in the choice of drinking water, should pay more attention to whether it is conducive to health, pure water is conducive to health? National Development and Reform Commission Public Nutrition and Development Center, Dr. Chai Wei in the "2005 China Drinking Water Industry Forum" at the meeting emphasized that "pure water has a strong ability to dissolve minerals, trace elements, people drink large amounts of pure water, the body's original trace elements, nutrients and nutrients, will rapidly dissolve. Nutrients, will be rapidly dissolved in pure water, and then excluded from the body, so that the nutrients in the body out of balance, a health deficit, is not conducive to good health. Many European countries now stipulate that pure water cannot be used directly as drinking water." Martin Fox, M.D., a famous American water expert, emphasized in the book "Healthy Water" that "drinking contaminated water and desalinated water (i.e., pure water) can be harmful to our health." China's Naval Medical Research Institute Water Supply Department Ding Nanhu researcher and others, from 1987 to 1994 on the mice for seven years of testing, so that they drink distilled water for a long period of time, the results found that the mice grow slower, weight loss, osteoporosis, muscle atrophy, pituitary and renal gland system function is destroyed. Dalian, an island garrison, had been drinking homemade distilled water (pure water), over time, officers and soldiers suffered from a variety of mineral deficiency diseases. According to Chen Mengxiong, a senior academician of the Chinese Academy of Sciences, "Long-term consumption of pure water will reduce the body's intake of minerals and beneficial elements. In terms of the relationship to health, natural water is superior to pure water, and mineral water is superior to natural water." A large number of animal tests and clinical reactions at home and abroad have proved that long-term consumption of pure water is harmful to health. For this reason, the Shanghai Municipal Education Commission has issued a notice: in principle, since the beginning of the 1997 school year, the primary and secondary schools, kindergartens should no longer use pure water as drinking water for students and young children. The Shanghai Municipal Administration for Industry and Commerce has also issued a notice: advertisements for pure water should not publicize the content of "long-term drinking" and the use of pure water for milk powder, cooking, etc. In March 2003, some primary and secondary school students in Hangzhou bid farewell to pure water, and there are already more than 100,000 primary and secondary school students who have been drinking mineral water. Recently, China Consumers' Association has officially issued a warning that teenagers, children and the elderly should not drink pure water for a long time. Green food to health as the basic goal, and long-term consumption of pure water, not only can not play a role in promoting health, but will cause harm to the body, so how can we say 鈥縁 color food?
Since drinking pure water into the market, the drink what water has been the majority of consumers are very concerned about the topic, after several years of intense debate, the conclusion is clear, long-term drinking pure water is not conducive to health, mineral water is the ideal drinking water. National drinking water health team leader, Shanghai Medical and University Professor, doctoral supervisor Zhu Huigang said: "mineral water and general drinking water is different, it contains lithium, strontium, zinc, iodine, selenium, and other trace elements, and some are also rich in macronutrients, so it can replenish the human body needs of the microelements and macronutrients, regulating the body's acid-base balance, these characteristics are general These characteristics are not available in general drinking water. Mineral water is the crown of healthy drinking water." Xu Fang, a senior expert in health at the Environmental Institute of the China Medical Control Center, pointed out, "Mineral water is distinguished from ordinary groundwater by the presence of a certain amount of minerals, trace elements or carbon dioxide gas that are beneficial to human health. Since this water is not contaminated by foreign man-made pollution and does not contain calories, it is an ideal health drink for human beings. We have conducted animal tests on more than a dozen kinds of mineral water representative of our country, and found that these mineral waters have different degrees of tumor suppression effect, and some epidemiological survey data also indicate that mineral water does have a great effect on promoting muscle health and prolonging life." In line with the medical mineral water quality standards for drinking natural mineral water on certain diseases have the role of prevention, treatment and alleviation of symptoms.
Water nutritionist Li Fuxing said that pure water is clean, but there may be some hidden dangers to the human body. This nature does not exist in the water is a degraded water, the quality has declined, the role of the human body has been "degraded". Even if the natural water is not polluted, after a series of purification processes such as reverse osmosis draws out all the minerals in the water, but also the loss of small molecules to support the structure of the scaffolding and "degradation", and due to the absence of any minerals and the loss of its physiological function. In the final analysis, pure water is to clear dead water, no activity. The so-called "water to clear is no fish", that is, because too clear water containing minerals is particularly low, is not conducive to biological growth. People drink water is also so, long-term drinking pure water, will reduce the body's immune function, so that some of the body's beneficial nutrients loss. Elderly people, especially those suffering from cardiovascular disease, diabetes, children, pregnant women are more inappropriate to drink this water for a long time.
Because of the widespread use of pesticides, insecticides, and industrial wastewater and household waste pollution of water sources, some areas of drinking water has been very unsatisfactory, so the phenomenon of purchasing pure water for drinking appeared in some urban families. Not to mention the market sale of distilled water, pure water is qualified, single long-term drinking distilled water, pure water, on the health is potentially harmful. First, often drink distilled water people give up from the water to get the human body needs 5% of the source of trace elements, but also give up the health of the water to protect the elements of calcium, magnesium ions. Secondly, the solubility of pure water is the largest, it as a carrier of human waste, but also inevitably more dissolved away from the body of some useful elements out of the body. Distilled water and pure water production is the need to boil the source water so that its evaporation condensation recovery, or reverse osmosis production, in the process, used to produce distilled water in the source water of other heat evaporation of substances will also be with the generation of distilled water and condensation to distilled water, such as health hazards phenols, benzene compounds and even evaporable mercury, and so on. The reverse osmosis method will not be theoretically pure water. To get pure water or ultra-pure water, must go through the second and third distillation, but also to add other means of purity. The market for drinking distilled water is unlikely to do so, there is no need to do so. It has been reported that some children in one of our cities have become sick as a result of drinking pure water for a longer period of time. People drink water is necessary for survival, we need to be clean and clean to the human body harmless natural drinking water, not necessarily drinking pure and pure high-priced distilled water or pure water, of course, occasional drinking distilled water is not a problem.
"Mineral water", "pure water", "space water", "distilled water", "magnetized water"......
In the past few years, advertisements promoting "xxx water", "xxx water", have rolled in from all directions and entered millions of homes with overwhelming force. It seems that China's tap water has been undrinkable, will be "abdicated" to give way to those who have a wide variety of this "water", that "water".
However, according to the newspaper, a children's hospital admitted nine children with muscle tremors and shaking eyelids, which were examined by specialists and found to be caused by a lack of calcium and potassium due to drinking large quantities of certain "water".
The so-called "pure water" is natural water through a number of processes, treatment, purification and purification of water. I once visited a factory producing pure water. The plant is the use of natural geothermal mineral water, and then after electrodialysis, ion exchange, super filtration, ozone sterilization, oxygen treatment, and then through the automated filling line, bottled pure water. This kind of pure water is completely removed all kinds of ions in the original geothermal mineral water. It can be seen, pure water in the production process, on the one hand, in addition to the harmful germs, organic matter and certain toxic elements, on the other hand, also removed the beneficial trace elements and essential minerals for human health.
Human beings are not supernatural special creatures. The health of human beings depends on the nutrients they take in from drinking water or food. These nutrients, are made up of many chemical elements. For example, oxygen, hydrogen, nitrogen, calcium, phosphorus, sodium and potassium. They are found in large quantities 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. Some trace elements, such as zinc, selenium, fluorine, etc., in the human body, although the amount of micro, but they are vitamins, hormones, enzymes, an indispensable component of the system, responsible for specific biological functions.
Drinking water is an important way for the human body to take in inorganic elements such as potassium, calcium and magnesium from the natural environment. For example, potassium is the main cation in cells, and it plays an important role in maintaining the normal structure and function of cells. Potassium deficiency can cause myocardial necrosis.
Again, calcium is also an indispensable element in the human body. The main component in bones is calcium, and blood also contains certain calcium ions. Without these calcium ions, the blood will not coagulate easily when the skin is scratched. Calcium also inhibits the absorption of harmful elements such as lead and cadmium. Babies need sufficient calcium as their bones continue to grow during growth and development. When there is too little calcium in the human body, the heart muscle is weak and incomplete contraction, while the skeletal muscle excitability increases, causing muscle twitching disorder, rickets and bone softening.
According to the data report, 1/3 of the children in our country are deficient in zinc. Zinc deficiency in children can cause mental retardation and reduced learning ability. Zinc deficiency in pregnant mothers can cause congenital malformations in fetuses. Zinc deficiency also affects the normal development of 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 and so on. Of course, the human body intake of excessive zinc, also has adverse effects.
Selenium deficiency in the human body can cause heart disease, hypertension, Keshan disease, etc. Selenium also has the effect of reducing the incidence of stomach cancer, intestinal cancer, liver cancer.
Magnesium is another essential element in the human body. Magnesium ion is one of the main cations in human cells, and magnesium is also an important element in the reaction of many enzyme systems. Magnesium deficiency may cause localized necrosis and inflammation in heart and skeletal muscle. Cancer rates tend to be higher in areas where magnesium is deficient in drinking water.
So, often drinking pure water, the human body needs potassium, calcium, magnesium and other inorganic elements are gone, the human body needs zinc, selenium, fluorine and a variety of trace elements are also gone. Over time, it is bound to cause a nutritional imbalance in the human body. Especially infants and teenagers, is in the stage of intellectual development, coupled with their mobility, loss of inorganic salts and minerals and more, often drink pure water, will give them a negative impact on the healthy growth.
In low-fluoride drinking water areas, due to insufficient fluoride, often caries. The fluoride that the human body needs comes mainly from drinking water. When the fluoride content of drinking water is less than 0.5 milligrams per liter, the prevalence of dental caries is as high as 70% to 90%; when the fluoride content of drinking water is 0.5-1.0 milligrams per liter, the prevalence of dental caries is 40%; when the fluoride content of drinking water is 1.5 milligrams, the prevalence of dental caries is less than 10%.
In short, human beings 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 is a combination of climate, topography, hydrology, geology, soil, vegetation and other factors in the environment. Drinking water is an important way for the human body to take inorganic minerals and trace elements from the natural environment. Real high-quality mineral water is the ideal choice for human drinking water. Long-term consumption of pure water, "space water", distilled water, will cause the loss of useful substances in the body, is not beneficial to the body. The more you drink pure water, the higher the incidence of dental caries, which just illustrates the problem.
Long time to quote the pure water, the body is not good, although it seems to be very convenient to use pure water, but from the point of view of the pure water process, because it has been purified many times, although pure, but in the filter through the impurities at the same time, the water would have existed in the human body beneficial minerals are also filtered out, in this way, the people in the drinking water can not be like drinking tap water to supplement the human body some of the essential minerals, long-term this way, the human body can not drink water. Essential minerals, long-term life this way, on their own health is not good, so it is recommended that you still use the most common way - boil tap water to drink, although some trouble, but after high-temperature disinfection of tap water, is not contain bacteria, and also retains the minerals useful to the human body, the body is good.
But sometimes there are more guests in the house, and it's definitely too late to boil water and not enough to use it, so pure water is still a good choice.