Regular drinking of tap water, natural water and mineral water is safe, but regular drinking of pure water is unsafe. 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.
What is Mineral water, purified water, filtered
water, boiled water?
1. Is it not safe to drink pure water regularly?
The China Green Food Development Center
states that “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 as they
drink. If you don’t quench your 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, a Chinese cardiovascular disease expert and
professor of the Chinese Academy of Sciences, pointed out: “Long-term drinking
of soft water with few minerals is a risk factor for atherosclerosis. One of
the reasons."
The Naval Medical Research Institute provided a clinical response:
"Soldiers on Zhoushan Island generally felt fatigued after drinking
rainwater for half a year."
After testing, the rainwater lacked minerals and its water quality was 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.
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2. Pure 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, which are specifically reflected in the green
food product standards, which require excellent sensory characteristics,
quality and nutritional value." So said Nowadays, 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 Chinese 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 China'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, leader of the
National Drinking Water Hygiene Group and Shanghai Medical University,
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,
Integrated circuit boards, etc. Drinking pure 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:
- Does not contain harmful substances,
- Contains Appropriate amount of minerals
- Moderate hardness
- Rich oxygen content
- Small water molecule clusters
- 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
Community and the United States must maintain a hardness of more than 60.
Obviously pure water does not meet the conditions of healthy water and 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
water are crucial to human health. 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 the 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 conducive to
physical health. Now many European countries stipulate that purified water
cannot 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."
China'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 said goodbye to purified water, and more than 100,000 primary and
secondary school students have drank 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
the 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 body's acid-base balance. These characteristics are not
available in ordinary drinking water. Mineral water is the crown of healthy
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 China, and
found that these mineral waters have varying degrees of anti-tumor effects.
Some epidemiological surveys 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 is the source of
health. Everyone should drink at least 6 to 8 glasses of water every day. This
is people's healthy understanding of water.
Drinking clean, pollution-free mineral
water has become a trend; some people insist on drinking boiled water. In
recent years, more and more people believe that only through drinking water
filters can they drink pure and healthy water.
What kind of water should you drink to be healthy?
Drinking 8 glasses of water a day is a healthy standard that people
understand. An average adult weighing about 60 kilograms needs 2.5 liters of
water per day. Some people think that these water can be absorbed from various
diets.
Mineral water is the "murderer"
of high blood pressure
Water is an integral part of human cells.
When cells lose water, they lose their function. Water helps the body absorb
and digest food, helps regulate body temperature, and moisturizes and slides
joints.
Encourage people to drink more boiled
water, because some mineral water contains higher sodium, and high sodium is
one of the main culprits in causing high blood pressure. In addition, excessive
sodium intake can also cause damage to the kidneys.
Pure water can effectively promote human
metabolism. Beverages with high concentration, such as coffee, tea and soda,
not only fail to provide water to the body, but also take water from the cells,
leading to dehydration, so you should not drink more.
Bottled water sold locally includes mineral
water, purified water, distilled water, etc. A spokesman for the Agri-Food and
Veterinary Authority said: "Bottled water is either produced locally or
imported from other places. Manufacturers and importers must ensure the safety
of this water. Local manufacturers of bottled water have obtained licenses from
the Agri-Food and Veterinary Authority . The Bureau of Agriculture and
Veterinary Medicine regularly inspects these manufacturers to ensure that
production meets health standards."
As for imported bottled water, the
Agriculture and Veterinary Bureau requires manufacturers to prove that their
products are safe to drink by having a license and product hygiene certificate
issued by the local government.
Bottled water sold in local markets must
obtain approval from the Agriculture and Animal Husbandry Bureau before it can
be put on the shelves. The authorities will also conduct regular product
sampling and testing.
When people drink bottled water, they should avoid drinking from
the same bottle with two/more people to avoid spreading germs.
Understand the three main types of
drinking water
Tap Water
Tap water does not contain as many minerals as mineral water,
however, tap water does contain chlorine and fluoride. Chlorine kills
bacteria, and fluoride prevents tooth decay. Singapore is one of the countries with the
safest drinking water in the world. The drinking water is produced in
accordance with the standards provided by the World Health Organization. Its
standards include the content of microorganisms and the content of dozens of
minerals.
Distilled Water
Distilled water is also available on the
market, but there are not many choices. The packaging is no different from
ordinary mineral water, so many people confuse it with mineral water.
Distilled water is artificially purified
water with a purity of 99.9%, but the mineral content in the water is
negligible. The role of this "pure water" in the body is simply to
transport things, such as taking things rejected by cell tissues out of the body.
Mineral Water
There are no less than 20 kinds of
mineral water on the market. Mineral water refers to a natural water source
that originates from the ground, emerges naturally or is extracted
artificially. It is rich in iron, calcium, sodium and magnesium. During the treatment
process, no minerals, carbon dioxide, etc. are added to the mineral water. Do
not add chlorine or otherwise treat water quality other than physical
sterilization. In addition, it must be filled and sealed with automatic
equipment to avoid contamination.
Generally speaking, water that gushes
purely from the ground and does not require artificial processing or filtration
can be called "natural mineral water". If clean underground water
sources are manually extracted and moderately sterilized, it is called
"general mineral water".
International standards for mineral water
According to international standards,
mineral water regulations are very strict.
1. Altitude: Spring water is located at
an altitude of 50 to 2,500 meters above sea level, and mountain spring water is
located at an altitude of 2,500 meters or more.
2. Water source: There should be no
variables causing water pollution within a radius of 10 kilometers.
3. The spring water must gush out
naturally and be filtered by other rock formations. After testing, it is indeed
rich in natural minerals.
4. It must be packaged directly at the
place of production, and it is best to seal the can within 24 hours to ensure
that the inside of the can is sterile and pollution-free.
5. Water quality must be continuously
tested for about 10 years to determine the amount of minerals and obtain the
International Water Quality Association mark before its stability can be
confirmed.
There are many types of bottled water on
the market, with different brands and drinking water names. Consumers should
pay more attention to distinguish them. For example, natural spring water,
natural mineral water, sparkling mineral water, and some are drinking water or
distilled water.
Rolling over and over again will cause
illness
Un-boiled Water
"Raw water" means tap water.
Local tap water meets the standards provided by the World Health Organization.
If you go abroad, try to avoid drinking tap water because hygiene standards
vary and some tap water contains various harmful bacteria, viruses and zoonotic
parasites. Drinking it can easily cause acute gastroenteritis, viral hepatitis,
typhoid, dysentery and parasitic infections.
Aging Water
Commonly known as "stagnant
water", it is water that has been stored for a long time without moving.
For minors, drinking this kind of water regularly will significantly slow down
cell metabolism and affect body growth and development; for middle-aged and
elderly people, it will accelerate aging; according to research by
medical scientists, the increased incidence of esophageal cancer and gastric
cancer may be related to long-term Related to drinking aged water.
Thousands of boiling water
Thousand boiling water is water that has
been boiled on the stove overnight or for a long time, as well as water that
has been boiled repeatedly in an electric kettle. Because this kind of water
has been boiled for a long time, the water contains non-volatile substances,
such as calcium, magnesium and other heavy metals and a high content of
nitrite. Frequent drinking of this kind of water will affect gastrointestinal
function, causing temporary diarrhea, bloating, etc.; toxic nitrites can cause
hypoxia in the body, and in severe cases, coma, convulsions, and even death.
Reboiled Water
Some people are accustomed to boiling the
remaining warm water in a thermos before drinking it in order to save water,
gas, electricity and time. But this practice should not be encouraged. Because
the water is boiled again and again, the water evaporates again and the nitrite
will increase. If you drink this water often, the nitrite will accumulate in
the body and cause poisoning.
Can bottled water damage teeth?
A New Zealand medical report points out
that "frequent drinking of bottled water may lead to insufficient fluoride
and damage teeth", which is not necessarily correct because most people
can absorb fluoride from sources other than drinking water.
The report says children and teenagers
are reducing their fluoride intake by drinking bottled and filtered water,
which contains less fluoride than tap water.
So, how can we usually absorb enough
fluoride? Local dentist Huang Jiying said that toothpaste is rich in fluoride
and is helpful for dental health. Instead, be careful when drinking highly
acidic drinks and sports drinks, as the acidity of these drinks can erode your
teeth.
He said that in addition to water and toothpaste, tea also contains fluoride. However, excessive fluoride intake can damage tooth enamel and have adverse effects on bones.
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