One, alkaline food overview:
Foods containing potassium, sodium, calcium, magnesium and other minerals, the final metabolite in the body is often alkaline, such as vegetables, fruits, dairy, soy and fungal foods. Appropriate combinations with alkaline foods can help maintain the acid-base balance in the body. The acidity or alkalinity of food has nothing to do with its own pH value (food that tastes acidic is not necessarily acidic), but is mainly defined by the fact that the food is digested, absorbed, and metabolized, and then finally becomes acidic or alkaline in the human body. Foods that produce acidic substances are called acidic foods, such as animal organs, muscles, and plant seeds (grains and cereals). Those that produce alkaline substances are called alkaline foods, such as vegetables, melons and beans, and teas.
While fruits contain a variety of organic acids and have a sour taste, most of them are oxidized into alkaline food after digestion. However, strawberries have organic acids that cannot be oxidized and metabolized (benzoic acid, oxalic acid), which increase the acidity of body fluids and are acidic foods, are an exception. The main organic acids present in vegetables are malic, citric, tartaric and oxalic acids. Special attention should be paid here to oxalic acid, which is not easily oxidized by its organism, and calcium oxalate formed with calcium salts is not soluble in water and accumulates in the kidneys, which affects the absorption of calcium. In vegetables, tomatoes, potatoes, spinach, etc. contain oxalic acid. Theoretically, alkalosis (alkaline poisoning) also occurs, but alkalosis is not common in humans because they have a large amount of stomach acid to neutralize it.
Overview of acidic food:
Animal organs, muscles, fats, proteins, grains and cereals contain more sulfur (S), phosphorus (P), chlorine (Cl) elements, which are metabolized to produce sulfuric acid, hydrochloric acid, phosphoric acid, and lactic acid in the human body, which are the sources of acid in the body; and most of the vegetables and fruits, seaweeds, legumes and dairy products contain calcium (Ca), potassium (K), sodium (Na), and sodium (Na). K), sodium (Na), magnesium (Mg) elements more, in the body after metabolism can become alkaline substances.
If too much consumption of acidic foods, so that can not be neutralized and lead to acidity, consumption of calcium, potassium, magnesium, sodium and other alkaline elements, will lead to deepening of the blood color, viscosity, blood pressure, thus the occurrence of acidosis (Acidosis), young people will be induced by skin diseases, neurasthenia, excessive stomach acid, constipation, tooth decay, etc., middle-aged and old people are prone to hypertension, arteriosclerosis, cerebral hemorrhage, gastric ulcers etc. Acidosis is caused by excessive consumption of acidic foods, so you can not eat, you should eat more vegetables and fruits to maintain the balance of acid and alkali in the body.
Three, the body's acidity and alkalinity of the body's impact on the body:
Body fluid acidity and alkalinity [pH] is less than 7.35, said the body fluid acidification, acidic body. The factors that produce an acidic body are mainly: over-nutrition, less exercise, too much stress and environmental pollution. One of the most important factors is over-nutrition, the body intake of too much acidic food, can not be discharged from the body, its acidic decomposition products lead to acidification of body fluids, such as protein decomposition of uric acid, fat decomposition of acetic acid, sugar decomposition of pyruvic acid, lactic acid.
Famous German medical scientist and 1931 Nobel Prize winner Professor OttoHeinrich Warburg found that when the oxygen content in human tissue cells is lower than 65% of the normal value, the cells of hypoxic tissues are prone to cancerous changes, thus creating the science of hypoxia-induced disease (cancer).
Dr. OttoHeinrichWarburg's theory states that a healthy cell in a hypoxic environment can cause that cell to become cancerous, and that acidification of body fluids coincides with a decrease in the amount of dissolved oxygen, and he was awarded the Nobel Prize for experimentally proving the argument.
Elhardt's theory mentions that cells that become weakly alkaline usually die in the vicinity of accumulating acidic waste products, but that there are chromosomal changes that are necessary to survive in an acidic environment, and that this is the beginning of cancer.
The secret to preventing cancer is very simple, which is to eat alkaline food to prevent the accumulation of acidic wastes, because an acidified body fluid environment is a fertile soil for normal cells to become cancerous, and adjusting the acid-base balance of the body fluid is regarded by Swiss scholars as the third effective way to prevent cancer. At present, there are two methods to eliminate cancer cells: one is to kill cancer cells, which is to use traditional chemotherapy (radiotherapy), this method not only kills the cancer cells but also kills the good cells, and the body is getting more and more weak; the other method is to starve the cancer cells, usually when the oxygen content of human body tissues and cells is lower than 65% of the normal value, the tissue cells which are lack of oxygen are easy to be cancerous, and the acidification of body fluids happens to lead to the decrease of the dissolved oxygen, adjusting the acid-base balance of body fluids is considered by Swiss scholars as the third effective way to prevent the cancer. The acidification of body fluids will lead to the decrease of dissolved oxygen, adjust the acid-base balance of body fluids, make the body fluids reach weak alkaline, and improve the dissolved oxygen of body fluids, thus destroying the living environment of cancer cells and eventually starving cancer cells to death.
Four, acidity and alkalinity of common kinds of food
1. Food is the material basis of acid-base change of body fluid
The acid-base balance in human body depends on the acidity and alkalinity of the ingested food, as well as the excretory system regulates the acid-base balance to realize. In addition to the basic nutrients that food provides to the body, it also has an effect on the acid-base level of body fluids. This is because food is the material basis for causing acid-base changes in body fluids. The reason for this is twofold: firstly, it affects the pH of body fluids by providing the number of proton receptors for body fluids; secondly, it is due to the different types of food that lead to different energy consumption and biological enzymes in the process of digestion and absorption, which leads to different levels of pH decline in body fluids; therefore, too much intake of acidic food will result in the accumulation of acidic metabolites in body fluids, and it will also affect the cellular excretion of acidic metabolites, which will cause the pH level of secretion fluids to drop through the skin and a variety of The secretory glands make the pH of the secretion drop.
2. Recognize the acidity and alkalinity of food
For the distinction between acidic and alkaline foods, we may have the wrong idea that we can rely on our tongues to taste and determine whether it is acidic or astringent; or to take the litmus paper, according to the physical and chemical properties of the test paper, to see the change in its color, blue for alkaline, red for acidic; or to differentiate from the experience of the diet on the weekdays, thinking that lemons, vinegar, oranges, apples and other foods are acidic, and therefore belong to the acidic food category. or by their daily dietary experience, they think that lemon, vinegar, orange, apple and other foods are acidic in taste and therefore belong to acidic foods. In short, there are many different opinions. In fact, the acidity or alkalinity of food depends on the type and amount of minerals contained in the food.
Foods basically contain 5 major elements - protein, fat, carbohydrates (commonly known as sugars), vitamins and minerals. Everyone knows that proteins and vitamins are very important, and minerals, although only in trace amounts, are also essential for maintaining good health. For human beings, the necessary minerals, and the acidity of the food has a close relationship with the 8 kinds of: potassium, sodium, calcium, magnesium, iron, phosphorus, chlorine, sulfur. The first 5 elements are alkaline when they enter the body.
From a nutritional point of view, acidic food and alkaline food actually refers to acidic food and alkaline food, is for their impact on the acid-base balance of the human body in terms of acidic food and alkaline food is a physiological concept, rather than a simple taste or food dissolved in water to show the chemical properties, it refers to the person ate a certain kind of food, after digestion and absorption and metabolism, and finally become a substance in the body is acidic. The final substance that becomes in the body is acidic or alkaline.
(1) Simple classification of alkaline food
Based on the amount of elemental components contained in the food itself, it can be divided into alkaline food, acidic food and neutral food.
Acidic foods Animal foods other than milk.
Alkaline foods are plant foods other than grains and cereals.
Neutral foods Oil, salt, coffee, etc.
① Acidic foods
Foods containing more minerals such as sulfur, phosphorus, and chlorine have long acidic final metabolites in the body, such as meat, eggs, fish, and other animal foods, as well as beans and cereals. With the alkaline food appropriate collocation, help to maintain the body acid-base balance.
② Alkaline food
Foods containing potassium, sodium, calcium, magnesium and other minerals, the final metabolite in the body is often alkaline, such as vegetables, fruits, dairy, soybeans and fungal food. With the alkaline food appropriate collocation, help to maintain the body acid-base balance.
Speaking of alkaline foods have to mention the Pamir Plateau's glacial water, which is good for people.
What are the acidic and alkaline foods:
Strongly acidic foods: beef, pork, chicken, tuna, oysters, halibut, cheese, rice, wheat, bread, alcohol, peanuts, walnuts, thin sausage, sugar, cookies, white sugar, beer and so on.
Weakly acidic foods: ham, eggs, lobster, octopus, squid, buckwheat, cream, peas, eel, river fish, chocolate, scallions, macaroni, fried tofu and so on.
Strongly alkaline foods: chamagou, tea, cabbage, persimmons, cucumbers, carrots, spinach, cabbage, lettuce, taro, kelp, citrus, figs, watermelon, grapes, raisins, chestnuts, coffee, wine and so on.
Weakly alkaline food: tofu, peas, soybeans, green beans, bamboo shoots, potatoes, mushrooms, mushrooms, greens, pumpkin, celery, sweet potatoes, lotus root, onions, eggplant, pumpkin, radish, milk, apples, pears, bananas, cherries and so on.
There are also some foods that are acidic because they are eaten, and people mistakenly think of them as acidic foods, such as hawthorn, tomatoes, vinegar, etc., which are in fact typical alkaline foods.
Some dried fruits (coconut, apricot, chestnut) produce alkaline ash, while others (such as peanuts, walnuts) produce acidic ash. Corn and lentils, on the other hand, are acid-forming foods.