In the past, many health products and programs have been vigorously promoting the theory that "alkaline constitution is healthier than acidic constitution", "acidic constitution is easy to get sick" and even "eating meat will make acidic constitution more serious".
Even a series of derivative products such as "acid-base drinking machine", "acid-base water purifier" and "alkali tablet" appeared, which set off a period of "alkali-loving frenzy".
However, this statement has brought a lot of trouble to doctors, because this theory has led many people to take drugs privately without the guidance of doctors, and even refused to take drugs given by doctors on the grounds that "acidic drugs are not good for their health". It leads to the delay of the illness and makes the doctor laugh and cry.
The human body is a very complex structure, and the pH of different body fluids is of course different.
For example, we often say that gastric acid is acidic, and its pH can reach 1.0~2.0.
The intestinal juice of the small intestine adjacent to the stomach is alkaline, and the pH value is about 7.55~8.55.
Even if the intestines and stomach are so close and closely related, but their pH values are also very different, then our human body's physique can not be summarized simply by "acid and alkali".
In medical examination, different body fluid tests will adopt different standard values.
And in different situations, the indicators used are not the same. It can be seen that the simple "acid-base constitution" can not correctly reflect a person's health.
Under normal circumstances, although the human body continuously ingests or produces acidic or alkaline substances during metabolism, the pH value of human body fluids can still remain relatively stable.
In addition to the content and proportion of this acid-base substance, the body can maintain a relatively stable pH of the human body, which is called acid-base balance.
The buffering function of blood, ventilation function of lung, acid excretion function and health care function of kidney are all involved in maintaining this balance.
Our human body has a very powerful and sensitive regulation system, which can maintain the acid-base balance in the body under certain circumstances.
In the face of stomach acid, most of the normal foods we often eat are not worth mentioning.
Once food enters the stomach, it will be acidic because it is mixed with gastric acid.
Once it enters the intestine, it becomes alkaline after mixing with intestinal juice.
Even in arterial blood whose pH value is not obvious, there are plenty of buffers to maintain pH value. ..
At the same time, it has the regulation function of kidney acid excretion and lung alkaline substances, so it is difficult to break the acid-base balance in the body under normal circumstances, which will only affect the amount of acid and alkali excreted by the body.
However, if we consume too much acid-base substances under normal circumstances, such as taking some drugs for the purpose of pursuing alkaline substances, it will lead to the disorder of acid-base metabolism in the body, which will lead to arrhythmia, nervous system dysfunction, muscle weakness, consciousness disorder and other problems.
Whether food is beneficial or not cannot be judged only by its pH value.
We should pay attention to the nutritional components of food itself, such as protein in milk, sugar in cakes and fat in meat.
Plan your diet according to your actual situation.
In general, we can refer to the more realistic "diet pyramid" to plan our diet. When you are sick, you should also consult the doctor's advice, and you should not blindly listen to others, resulting in physical damage.