No Scientific Basis For Claims Acidic Cause Cancer
?China Disease Prevention and Control Center of Nutrition and Food Safety Jia Xudong
In recent years, modern tools such as the Internet under the assistance of acid-base properties of food and human health all the hype, consumers dizzying. Such as “acid food carcinogenic,” “acid-base balance should pay attention to food choices,” such as propaganda, there is no scientific basis? See from the “window of cancer,” Journal of guidance.
PH of food
The so-called acidic foods and alkaline foods (can be called into the acid into the base of food and food) is the application of chemistry in food terms. This study was used to evaluate the chemical properties of food, especially in the mineral element content of food use. It is based on food chemical properties after burning to classify, rather than the taste of food itself, divided by the pH.
Healthy fruits and vegetables
Not because the food is alkaline
Modern Medicine
The constitution says no pH
Normal body pH is able to maintain a dynamic equilibrium, because the human body has three conditioning systems, which regulate the body buffer system, lungs and kidneys regulate regulation. The most important buffer system in vivo is bicarbonate system, it “works” is more acid in the body, come in and have an alkaline substance; base more, there are acid to neutral. And lung conditioning, that is when the body more acidic, the people will speed up breathing, carbon dioxide will be more acidic call out, otherwise slower breathing. Renal regulation is also important, it can absorb the alkaline bicarbonate, acid secretion products side by side.
Can not simply live by feeding on human blood acidic foods can be the so-called “sour”, only when the above three-conditioning system is a problem, such as uremia, diabetic ketoacidosis, chronic obstructive pulmonary disease such circumstances, the body's acid alkaline balance will be upset, there metabolic or respiratory acidosis. This is a serious illness, must be treated, it can not live by feeding on “basic food” to solve. It should be emphasized that normal people simply can not become acidic people, because whether in clinical or medical research, as long as a person's body acidic, which is described in the medical state of acidosis, in theory, normal stresses can not survive.
Urine pH and blood pH
Not the same thing
I believe many people read the Internet like “PH by measuring urine pH values to determine the body,” the article. This statement is not correct, because the person's urine itself acidic (PH5.0 to 7.0), while urine pH does not accurately reflect the body's pH. Urine pH did diet-related, meat, eggs, milk, urine will be acidic pH number; eat more vegetables, fruits, slightly alkaline urine would be relatively certain. However, the pH of urine is the kidney “adjusting” the results, it can not represent the blood PH value PH value. The blood pH can be measured at home than their own needs to the hospital by professionals specialized equipment determined by them.
“Acidic lead to cancer,” it?
“Acidic lead to cancer” is the “habitus theory” is to attract the eye point, many people believe that. In fact, there are a variety of tumors, each tumor-induced factors are different, a recognized cancer-causing many factors, but so far there is no body of medical acid and cancer-related incentives argument. Therefore, the tumor was caused by a variety of combination of factors, not an acidic food can be induced.
“Habitus theory” claims that 100% of cancer patients is acidic. Indeed some patients in vivo acidic pH, which is in fact mentioned above acidosis, that is, not the so-called “acidic” cause cancer, but the metabolism of cancer patients out of the problem.
Long life alkaline food you eat?
“Human acid-base balance theory” claims that eat alkaline food longevity. Is it? To the Xinjiang birthday rich case, where the elderly to eating the meat and Nang-based, small vegetable intake, but also like to drink liquor, meat and wine are considered acidic, and this is clearly inconsistent with the theory. Epidemiological survey found that long-term engaged in manual labor, a pattern of life is main reason for their longevity. In addition, most centenarians in Xinjiang live in rural areas, where air quality is better, by the social environment is also very small, less pressure. The most crucial is that the elderly will be self-regulating, to maintain a healthy mind. Therefore, their longevity and eat basic food theory do not touch.
In short, the so-called “acid-base balance of foods,” there is no scientific basis. So how should consumers choose food? “Dietary Guidelines” gives a clear answer, that “food variety, cereal-based, thick with”, “daily nursing class, soy or its products,” “eat the right amount of fish, poultry, eggs and lean meat, “and so on, these are based nutrition research in recent years to improve the nutritional status of Chinese residents of dietary measures proposed. And in accordance with the “acid-base balance of food,” the fish, poultry, eggs and lean meat and other foods are classified as “acid food” would mislead the people on food choices.
