The effluent of domestic RO machine is also weakly acidic.
The digestive tract of human body is acidic, so it is better to use weakly alkaline drinking water for a long time.
But drinking water can't change the PH value in the body.
Acid constitution and alkaline constitution are very popular concepts in recent years, and they are veritable pseudo-concepts!
First of all, there are many acidic or alkaline substances in the human body, but the strong acid-base neutralization ability of the human body keeps the PH value in the body between 7.35 and 7.45, and the PH value of most body fluids in the body is within this range, and the acid-base environment of different organs is different, so it is impossible to simply define whether a person is acidic or alkaline.
The self-regulation mechanism of human body is very strong, and it is not a simple chemical reactor. Only metabolic disorder can lead to acid-base imbalance.
If the acid-base balance is destroyed, you may get sick, such as too much acid loss in the body, or too much alkali intake from outside, leading to blood HCO 3-(>; 27mmol/L) and PaCO2 increased, indicating alkalosis. Many newborns may cause alkalosis by crying and exhaling too much carbon dioxide.
Therefore, the PH value in a healthy human body is acidic. If a person is judged to be healthy only by pH value, then everyone, regardless of gender, age and age, is unhealthy, which is definitely an unreliable inference.
The concept of acidic constitution is the result of speculation, which was put forward by merchants in order to promote health care products, and there is no strict scientific basis.
Drinking water can change the acidity and alkalinity of human body?
This is actually a very natural conclusion. The human body is not a container, it shows what it puts in.
Under normal circumstances, drinking water enters the esophagus through the mouth and then enters the stomach. Stomach acid will neutralize acid and alkali substances in food.
When the stomach is empty, the pH value is about 7.0 ~ 7.2, and when the food ball enters the stomach, the pH value can be reduced to 2 ~ 3. But just now, we saw that the drinking water with the highest pH value, that is, the most alkaline water, was not drunk until after 8 o'clock.
In other words, after drinking a few bottles of alkaline drinking water, it is not so easy to get rid of the "acidic constitution". Even if the stomach acid fails, the whole army will be wiped out!
Even if you eat a lot of alkaline food and drink alkaline water every day, the acid-base balance ability of the human body will reverse the pH value and return to normal pH value in a short time.
Therefore, it is obviously futile to change the pH of the human body by drinking water.
The World Health Organization stipulates that there are six standards for good water:
1. is pollution-free water without germs, impurities, organic matter and heavy metals;
2. Water contains minerals and trace elements in a proper proportion and exists in ionic state; ?
3. Weakly alkaline, with a PH of 7-9; ?
4. Small molecular groups have strong water permeability and good solubility; ?
5. Negative potential can eliminate excess free radicals in the body; ?
6. It contains a proper amount of oxygen (about 5 mg/L).