On July 18, the Consumer Council of Hong Kong, China (referred to as the "Hong Kong Consumer Council") issued the "Consumer Council's Clarification on the Test Sample Results of "Nongfu Spring", clarifying the misunderstanding caused by the gap in the classification of Nongfu Spring samples. . Tests have shown that Nongfu Spring products fully comply with relevant standards and are safe to drink. We will continue to provide safe and high-quality products and services to the Hong Kong, China market.
The Hong Kong Consumer Council issued a document saying that since the mineral content of the four products listed on the ingredient list of Nongfu Spring is similar to that of natural mineral water, the Hong Kong Consumer Council staff classified Nongfu Spring based on the product name and label information of the sample. Natural mineral water. After meeting and in-depth exchanges with representatives of Nongfu Spring on July 17, the Hong Kong Consumer Council learned that the product in question is neither natural mineral water nor purified water, but drinking natural water, and the standards adopted by the company refer to the place of production. , namely the Mainland’s “National Food Safety Standard for Packaged Drinking Water” (gb19298-2014). In this regard, the Hong Kong Consumer Council reclassified the sample into an independent category of drinking natural water and re-scored it. Details>>>
In supermarkets, there are a dazzling array of bottled water, with endless names. The names alone include "drinking purified water", "distilled water", "drinking natural mineral water", "mineral water", "natural There are many names such as "Snow Mountain Mineral Water", "Glacier Mineral Water (Drinking Natural Mineral Water)", "Drinking Natural Water", etc.
What is the difference between the natural drinking water and natural mineral water that caused controversy this time? After drinking water for so many years, do you really understand it? How to drink water to be really healthy? What are the misunderstandings about drinking water in daily life? Read it in one article.
There is so much water on the market, how to classify it?
In fact, the common ones can be divided into three categories
Picture source: ic photo
Bottled water and bottled water on the market are packaged drinking water. Currently, common packaged drinking water can be roughly divided into three categories: pure water, natural water or natural water. Spring water and mineral water.
Purified water
Purified drinking water is produced by distillation, electrodialysis, ion exchange, reverse osmosis or other appropriate water purification processes that meet the sanitary standards for drinking water.
The distilled water on the market is also pure water . During the treatment process, purified water removes bacteria, viruses, heavy metal elements, organic matter and other harmful components in the water. It has lower hardness and better taste. It can be drunk directly and will not form scale when boiling water. But during the processing, minerals beneficial to humans such as potassium, calcium, and zinc are also removed.
Natural water/natural spring water:
Drinking natural water and drinking natural spring water are both made from water from natural sources that has not passed through the public water supply system. The difference is that the source of natural water can come from wells, mountain springs, reservoirs, Lakes or mountain icebergs, etc., while natural spring water can only come from underground spring water.
These two types of water only require minimal treatment (such as filtration, ozone or equivalent treatment), which removes impurities and harmful substances in the water while retaining the original minerals and trace elements in the water that are beneficial to humans. Natural water/natural spring water from different water sources has different mineral element composition and proportions, and there are also certain differences in taste and water quality.
mineral water
mineral water mainly refers to drinking natural mineral water. Drinking natural mineral water is water that naturally gushes out from deep underground or is collected through drilling. It contains a certain amount of minerals, trace elements or other components. It is not polluted in a certain area and preventive measures are taken to avoid pollution; under normal circumstances Under this condition, its chemical composition, flow rate, water temperature and other dynamic indicators are relatively stable within the natural cycle fluctuation range.
Mineral water is essentially natural water, but natural water is not necessarily mineral water. Mineral water must be deep groundwater, and the minerals or carbon dioxide contained in it must meet one or more of the limit indicators in the national standards. Generally speaking, mineral water has stable water quality, low microbial content, and contains a certain amount of minerals and trace elements needed by the human body, such as zinc, selenium, strontium, etc.
How to choose various types of water?
For different scenes and groups of people, the choice of drinking water is also different.
For people who lack minerals, they can choose corresponding mineral water to supplement.
For people suffering from nephritis, high blood pressure, heart disease and other diseases, drinking mineral water for a long time will have counter-effects. Mineral salts may increase the burden on the kidneys and bladder, so choosing purified water is more suitable for them to regulate their diet. role.
For infants, young children, women, and the elderly, it is more suitable to drink it cold and boiled. After boiling, the coldness of cooked water will be greatly reduced, making it more suitable for women's bodies. The elderly and infants have sensitive gastrointestinal tracts, and cooked water is mild and non-irritating, which can effectively reduce the burden on the gastrointestinal tract.
Finally, it is recommended that everyone choose formal sales channels, relatively large enterprises and well-known brands for drinking water. The packaged water label information should be complete, and should be placed in a dark, ventilated and cool place, and should be used up in the shortest possible time.
drinking water standards? How to drink water to be healthy?
Looking at from the water source, the source of pure water comes from public water supply or non-public water supply, and the water source of natural water, natural spring water and mineral water comes from non-public water supply.
From the standard point of view , pure water, natural water and natural spring water comply with the "National Food Safety Standard for Packaged Drinking Water" (gb 19298-2014), and natural mineral water follows the "National Food Safety Standard for Drinking Natural Mineral Water" 》(gb 8537-2018) standard.
Daily water intake needs to be increased or decreased appropriately based on age, temperature, labor or exercise, amount of sweat, etc. The amount of water consumed by different age groups also varies. It is not advisable to replenish water too much or too quickly. It is recommended to follow the principle of small amounts and often times. When you sweat a lot, you can add some salt water appropriately.
According to the "Dietary Guidelines for Chinese Residents (2022)", the sources of water in the body of normal adults every day include water produced by body metabolism, water in food, and drinking water or beverages. In mild climate conditions, the appropriate daily water intake for adult men with low physical activity levels is 1,700 ml, and for women, the appropriate daily water intake is 1,500 ml. disposable paper cups can usually hold about 200 ml of water, so there is also a saying that you should drink 8 glasses of water a day. Patients with chronic kidney disease and cardiovascular disease need to consult a doctor to reasonably control the amount of water they drink.
Picture source: ic photo
How many misunderstandings about drinking water have you caught?
Is drinking purified water better than mineral water?
is not. From a health perspective, natural trace elements and minerals in water are valuable nutrition and health resources. Therefore, the water is not as “pure” as possible. Natural elements that are beneficial to the human body should be retained as much as possible and harmful ingredients should be removed.
Scientific research shows that an appropriate amount of calcium and magnesium in water has a protective effect on cardiovascular health. Although the magnesium provided by water only accounts for 2%-4% of the human body's needs, for those who are mildly deficient in magnesium, such as those who take diuretic drugs due to high blood pressure, heart disease, etc., resulting in excessive excretion of magnesium. Supplementing magnesium through drinking water can still play an important role.
In addition, magnesium in the dissolved ionic state in water is more easily absorbed by the body than magnesium in food. The World Health Organization (WHO) points out that long-term drinking of mineral-free water can directly or indirectly lead to low or even zero absorption of beneficial minerals by the body.
Therefore, purified water is not suitable for long-term drinking as daily drinking water alone. It can be drunk occasionally or alternately with other types of drinking water.
The hotter the water, the better?
is not. Many people like to drink hot water. Boiling water may cause damage to the gastric mucosal barrier, causing gastric acid to penetrate into the stomach wall, causing gastritis, erosion, etc., and may even lead to cancer.
Can’t drink water after taking cough syrup?
depends on the situation. When taking cough syrup, swallow it slowly to help the medicine take effect, but it is not recommended to drink large amounts of water quickly. You can drink a small amount of water after 15 to 30 minutes, if the child has difficulty swallowing the medicine. Drinking a little water in moderation is okay.
Drinking water during meals helps digestion?
depends on the situation. Drinking a lot of water when eating will dilute gastric acid and slow down gastric motility, which is not conducive to digestion. However, for some elderly people, drinking 100 to 200 ml of water appropriately can help food enter the stomach smoothly.
Can’t you drink “thousand boiling water” or “overnight water”?
depends on the situation. Some people say that "thousand boiling water" and "overnight water" cannot be drunk, mainly because they think that the nitrite in the water will exceed the standard. Research has proven that as the number of boils increases and the storage time increases, the nitrite content in the water will indeed increase slightly. However, it is unscientific to talk about toxicity regardless of dose. The nitrite content in water is generally very small, and the content after boiling and placing causes slight growth is still far below the national standard.
An experiment showed that after repeatedly boiling tap water 60 times within 120 hours, the nitrite content in tap water increased from 0.0006 mg/l to 0.211 mg/l, which is still lower than the national standard of 1 mg/l, not to mention that under normal circumstances The number of repeated boilings at home is much lower than the number of experiments.
Sources: CCTV News, Healthy China, People's Daily Online - Popular Science China, Duchang County Science and Technology Association of Jiujiang City, Jiangxi Province, Beijing Center for Disease Control and Prevention, Guangzhou Daily, Beijing News
Editor Chang Jiang
Proofreading Li Lijun
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