Sihaiwang: in many people's subconscious, drinking mineral water is healthier and safer than running water, but is it true? Recently, the truth about tap water has become popular on the Internet. Let's see what kinds of scams about tap water are there.
1. Fraud 1: is bottled mineral water cleaner and safer than tap water?
Truth: false, bottled mineral water is not necessarily cleaner and safer than tap water.
Look at two sets of data and you'll see:
In 2015, the results of spot check by China's food regulatory authorities showed that nearly 400 out of 407 problematic drinks were unqualified bottled water and packaged water.
In the detection standard of bottled water, there are only 20 water quality indicators. You know how many tap water items, 106.
Bottled water not only has a small number of detection indicators, but also many very important key indicators are missing, such as mercury, formaldehyde and other strong carcinogenic elements detection indicators; its coliform group indicators are also higher than that of tap water.
Tap water is public drinking water, involving the safety of drinking water for thousands of households, so the detection is very frequent and strict, once there is a problem, it is a disaster. In the safety of tap water, no one dare to take it lightly.
Bottled water is produced by enterprises, and it is common to drill holes. In order to reduce production cost, many indicators may not be strictly enforced.
2. Fraud 2: bottled water is mineral water
Truth: the bottled water you often drink is not mineral water. The real mineral water is very few.
Manufacturers always try to misunderstand you: the water you often buy is mineral water.
Not really.
Most bottled water on the market is pure water, mineral water and natural water.
Pure water is purified with tap water.
Mineral water is to add minerals such as potassium chloride and magnesium sulfate into purified water, that is to say, remove the mineral elements in tap water first, and then add artificial mineral powder. Mineral water is not mineral water.
Natural water refers to the water with minimum treatment for general surface water. Tap water also comes from surface water. There is no mineral standard for natural water or mountain spring water. In fact, it is no different from tap water.
Mineral water is a natural spring in the deep underground, which is obtained by artificial mining. The minerals contained in the water must be natural and cannot be added manually. The standards are extremely stringent. Therefore, the amount of mineral water spring is small and precious.
3. Scam 3: mineral water is healthier than boiled water
Truth: not necessarily. You don't need water for nutrition
You mistakenly think that the pure water and natural water of mineral water, as well as mineral water, are actually tap water. They are not more nutritious than boiled tap water.
Real mineral water has more trace elements than tap water. Many manufacturers claim that mineral water is more nutritious than boiled water.
This is concept hype. There are some trace elements in mineral water. The human body has already obtained them through other ways (eating). You don't need to supplement nutrition through water.
Yes, water is used to quench thirst and replenish water.
4. Fraud 4: the water filled in the water source must be better than pure drinking water.
Truth: not necessarily. All water that meets the hygiene standard can be drunk.
Filling the water source and opening the factory in the forest can give people a natural green feeling, but it may not be better.
There is no evidence that the microelements retained in water can effectively promote health or even cure disease, but in terms of taste, these retained microelements can affect the taste, so some people in some water source filling water will feel better.
5. Fraud 5: weak alkaline water can maintain high pH value in the body, shape alkaline constitution, and even cure all diseases.
Truth: weak alkaline water is the biggest scam
The human body is a stable system. The pH value in the body will not change easily with the change of the external environment. It is useless to drink water.
What's more, alkaline constitution is not necessarily healthy.
6. Fraud 6: oxygen water is more precious
Truth: the common tap water has oxygen.
When your tap water is turned on, there will be oxygen in it. It's not uncommon for oxygen containing water.
7. Deception 7: oxygen water is healthier
Truth: fake, you don't use water to replenish oxygen
Even if it is rich in nutrient water, the maximum dissolved oxygen in water is 80 ml oxygen per litre of water.
The average adult has 100 ml of oxygen in each breath.
The amount of oxygen in the water is negligible for humans who breathe all day.
8 trick 8: hydrogen rich water is healthier
Truth: fake, the human body can produce hydrogen itself.
Some businesses Hype: the human body absorbs more hydrogen, which can prevent and treat cardiovascular disease, clear free radicals, anti-oxidation and aging, and even cure all kinds of diseases.
First, there is no evidence that hydrogen has such an effect on the human body.
Second, bacteria in the human gut produce hydrogen every day, which is much higher than pouring dozens of liters of hydrogen.
9. Fraud 9: baby water is healthier than boiled water.
Truth: not necessarily
Many manufacturers claim that baby water contains many essential elements for baby growth.
This is true, but you need to understand that the nutritional elements for babies are mainly obtained through milk powder, breast milk and other ways,
Not through water. When a child drinks milk, all the things that need to be mended will be mended.
It's really unnecessary to buy special water for children to supplement nutrients. It's good to cool the boiled water to a proper temperature.
10. Trick 10: pure water does not contain oxygen and cannot be used to raise fish and water flowers, so it cannot be drunk.
Truth: can you drink?
Fish get oxygen from water. Do you get oxygen from water, too?
Eleven
Trick 11: mineral water can't be drunk overnight
Truth: can drink
There is a rumor that the nitrite content of overnight water increases greatly. Yes, it will increase a little. But experiments show that the nitrite content of water after several nights is still within the standard.
Having said so much, I summed it up in two sentences:
[1]. Water is only water. Drinking water is just for water supplement. We should supplement nutrition and eat more fruits and vegetables.
[2]. Believe in common sense, don't believe in the concept marketing of merchants.