The food acid-base balance theory is not reliable

among the many dietary rumors that have been retweeted on Weibo,

"food acid-base equilibrium theory
"
the most
"
the enduring
"
. The statement divided food into
"
acid
"
,
"
alkalitwo kinds, and saidthe human body is acidic, intake of acidic food is prone to cancer, and more intake of alkaline food can prevent cancer
"
, and finally came to the conclusion that food choice attention to acid and alkali balance. Experts pointed out that

"alkaline food anti-cancer, acidic food carcinogenic
"
itself is a false proposition, not reliable.It is understood that in the study of food chemistry, food is indeed divided into acidic and alkaline two, the classification is based on the chemical properties of ash obtained after food combustion
-
ash contains more phosphorus, sulfur, chlorine elements dissolved in water to produce acidic solution, while potassium, sodium, calcium content of gray content of ash to produce alkaline solution. This research is mainly used to evaluate the chemical properties of food, especially in the determination of food mineral element content. And spread in the micro-blog, the circle of friends
"
food acid and alkali theoryand the above theory is completely different, lack of scientific basis, not worth advocating., food ash is the oxide of some of the remaining elements after food is burned, which is different from the nature of food metabolites in the body. Secondly, although the metabolic process of food in the body continues to produce acidic and alkaline substances, but in the long-term adaptation to the diet of the conditions, the body has established a complete buffer system and adjustment system to ensure the acid-base balance of the internal environment. This balance is generally not altered by the nutritional intake of food.Net-transmitted

Alkaline Food Anti-Cancer, Acid Food Carcinogenic
"
, which classifys cereals, meat, fish and eggs as acidic foods, says they can cause high blood pressure, diabetes and tumors, and classes vegetables and fruits as alkaline foods, and says they can correct acidic physiques and prevent chronic diseases and tumors. In fact, fruits and vegetables can indeed play a role in preventing the occurrence of chronic diseases, preventing tumors, but its role is due to low energy of vegetables, fruits, and rich in vitamins, minerals, dietary fiber and health-beneficial phyto-chemicals, rather than the so-called
" "
. Experts said that according to the

acid-base equilibrium theory
"
, such as correcting
"
acidic physique
"
take soda every day, that is, the alkali surface can solve the problem? Clearly, this statement is wrong.Thus, the body acid and alkalinity, food acid-base balance theory and other side door left channel is not reliable, want health, nutrition focus on balance, while eating more healthy fruits and vegetables, as the Chinese Nutrition Society compiled the "Chinese People's Dietary Guidelines" pointed out: the diet of residents should be diverse, grain-based, thick matching, recommended to eat milk, soy or soy products every day, and often eat the right amount of fish, poultry, eggs and lean meat.Morning Post reporter Yu Ruilin