The problem of acidity and alkalinity of human body refers to the pH value of human blood, that is, the pH value of blood, which is an index to measure acidity and alkalinity. The blood pH value ranges from 7.35 to 7.45, which is alkaline. Through the adjustment of the system, the human body can always keep the blood pH within a certain range.
The gastric juice of human body is acidic, and the pH value of skin is about 5.5, which is acidic. Because bacteria don't like to stay in an acidic environment, the acidity of the skin can reduce the possibility of bacterial growth. The pH value of female vagina is 4.5, which can reduce the possibility of vaginal infection.
Urine is also acidic, because the kidneys excrete more acidic substances than alkaline substances. If the acidity of these environments is turned into alkalinity and alkalinity into acidity, then people's health will have a big problem.
Therefore, the so-called "acidic constitution, alkaline constitution and neutral constitution" does not exist and is a wrong concept; The so-called "acidic constitution is the source of all diseases, and alkaline constitution is healthier" is pseudoscience.
Extended data
Food may be acidic and alkaline under certain conditions. By fully burning food, the ashes left after burning are dissolved in water, and whether the food is acidic or alkaline can be judged according to the pH value of water. However, after food is ingested into human body, the digestion process is very complicated. It cannot be said that acidic food is acidic after digestion, and alkaline food is alkaline after digestion.
Moreover, the acid-base regulation mechanism of human body is very strong, and it is impossible to play a regulatory role by food alone. Therefore, the distinction between acidic food and alkaline food has no significance to the so-called acid-base influence of human body and healthy diet.
People's Network-Acid constitution is the source of all diseases? The theory that the human body has no acid-base constitution