Ge You Ke, a former senior nutrition official of FAO, said that no matter what water you drink or what food you eat, you can't change the acid-base balance of your body.
For example, he said, "The PH value of gastric juice is about 1.5. The stomach is the most acidic organ in the human body, but it is not the organ with the most cancers. Studies have found that the occurrence of cancer is related to many factors, but so far no research has proved that the occurrence of cancer is related to the acidity of diet or environment. This also shows that there is no scientific basis for acidic conditions to cause cancer. "
Zhixiang Shen, director of the Health Management Center of Jiangsu Provincial Hospital, believes that there is indeed an acid-base balance in the human body. In the biological evolution of human body, there is an internal steady state in the body. This internal balance refers to the acid-base balance. Under normal physiological conditions, the body temperature is about 37℃, and the plasma pH value is between 7.35 and 7.45.
However, when the pH value is greater than 7.45 or less than 7.35, alkalosis or acidosis will occur in human body, which is a pathological state and has nothing to do with acid-base constitution. In other words, there is an acid-base balance in the human body, but there is no distinction between acid-base and constitution.
"The core theory of acid-base constitution is that food will affect the pH of body fluids, which is also unfounded." Zhixiang Shen introduced that food also has pH, for example, plants are acidic and meat is alkaline. After eating plants and meat, the human body will not adjust the acid-base balance from the outside. For example, some people love to drink vinegar, but drinking vinegar has no effect on the acid-base balance of the human body; In normal physiological environment, the acid-base balance still depends on the automatic adjustment inside the human body.
There is only one situation that can adjust the acid-base balance of the human body from the outside, and that is morbid. For example, uremia patients, due to renal insufficiency, the function of regulating body fluid acidity and alkalinity is lacking, and can only be adjusted by taking medicine. For example, for patients with hyperuricemia and diabetic ketoacidosis, doctors will prescribe alkaline drugs such as sodium bicarbonate to neutralize urine and blood.
Kai Zhong, deputy director of Kexin Food and Nutrition Information Exchange Center, stressed to reporters that from the perspective of nutrition, the so-called human acidity and alkalinity is a "false proposition". "People eating any food will not affect the PH value of blood too much, because blood itself is a huge buffer system, and even drinking vinegar will not make blood acidic."
"From a nutritional point of view, a healthy diet mainly advocates a dietary pyramid, that is, a diet structure in which grains, vegetables, fruits, meat, eggs and milk are gradually reduced." Kai Zhong said that the dietary pyramid is based on carbohydrates, protein, vitamins and other nutrients that the human body needs, and has nothing to do with the pH value.
/iknow-pic . cdn . BCE Bos . com/d53f 8794 a 4c 27d 1e 46583 ed 5 1 5 D5 ad 6 eddc 438 a 0 " target = " _ blank " title = " " class = " ikqb _ img _ alink " >/iknow-pic . cdn . BCE Bos . com/d53f 8794 a 4c 27d 1e 46583 ed 5 15d 5 ad 6 eddc 438 a 0？ x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 600% 2Ch _ 800% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto " esrc = "/ N1/2018/119/c14739-30438 People's Network-Acid-Base Constitution is pseudoscience, and nothing you eat can change the acid-base balance.