Eat more alkaline food.
It is found that eating more alkaline food can keep the blood weakly alkaline, reduce the acidic substances such as lactic acid and urea in the blood, and prevent them from depositing on the tube wall, thus softening blood vessels. Therefore, some people call alkaline food "a cleaner for blood and blood vessels". The pH mentioned here is not the nature of the food itself, but the nature of the elements left in the body after digestion and absorption. Common acidic elements are nitrogen, carbon and sulfur. Common alkaline elements are potassium, sodium, calcium, magnesium and so on. Some foods taste sour, such as tomatoes and oranges, but they are all strongly alkaline foods, because the last element after their metabolism in the body is potassium.
It should be noted that some foods, such as hawthorn, tomatoes, vinegar, plums, etc., will be mistaken for acidic foods because of their sour taste. In fact, these things are typical alkaline foods.
What is acidic or alkaline food? The so-called acidic food or alkaline food does not refer to the food with sour or salty taste, but refers to the food that produces dominant cations or anions after digestion, absorption and metabolism. In other words, a certain food, such as potassium, sodium, calcium, magnesium and other cations produced after metabolism, is an alkaline food; However, foods that produce anions such as phosphorus, chlorine and sulfur after metabolism are acidic foods. Lemon, citrus and carambola taste sour, but after metabolism, organic acids become water and carbon dioxide, and the latter is exhaled through the lungs, and the remaining cations are dominant and still belong to alkaline food; Similarly, although meat, fish, eggs and rice flour are not sour, they produce more negative ions after metabolism and still belong to acidic foods. Therefore, it is impossible to distinguish acidic food from alkaline food in taste.
The pH of human body is relatively constant.
The pH value in our body is quite constant, because there are some buffering substances in the blood, such as carbonate, phosphate and protein, which can prevent the sharp change of pH value and regulate it through the lungs and kidneys, making it less susceptible to food. For example, after the sugar, fat and protein we eat are catabolized, water and carbon dioxide are produced. It stands to reason that the latter may increase the acidity of blood by producing carbonic acid, but the buffer system in blood can weaken the acidity and exhale the produced carbon dioxide through the lungs to keep the pH value of blood constant. For example, after eating meat, fish, eggs and other foods, we produce more negative ions, which we call acid-producing foods. However, through the role of buffering agent in blood, salt is generated, and these excess salts are excreted through the kidney, so that the blood still maintains its original pH value. Similarly, when eating alkaline food, the pH of blood is kept constant through the buffering effect of blood and the regulation of lungs and kidneys. Therefore, it is unrealistic to underestimate the regulatory role of the body by changing the diet to affect the pH in the body.
Excessive pH change is harmful to health.
In some cases, it can cause changes in blood pH value, such as excessive acid substances produced during rapid weight loss and diabetes; Or severe diarrhea, which exceeds the compensatory function of the body; Or lung and renal insufficiency, so that the blood pH value drops from the normal 7.40 to below 7.30, which will cause fatigue, dizziness, shortness of breath, and even nausea, vomiting and other acidosis symptoms. However, when severe vomiting, excessive gastric acid loss or ingestion of certain drugs raise the blood pH above 7.50, symptoms of alkalosis such as hand and foot convulsions, numbness and dizziness will occur. At this time, it will endanger your health and you need to go to the hospital for treatment.
Changing diet cannot control the birth of boys and girls.
It is a misunderstanding to change the pH of body fluids with food. Choosing different recipes to adjust body secretions and physiology to a state suitable for giving birth to boys or girls has no biochemical theoretical basis or clinical experimental basis. Therefore, it is also an extension of the above wrong view to control the rumors of having boys and girls by choosing recipes.
In fact, conception and deciding whether to have a boy or a girl is a complicated and mysterious process, which cannot be controlled simply by adjusting diet. Times are different now, boys and girls are the same, there is really no need to work hard on recipes. How we eat should focus on the nutritional needs of the body and the aspects that are beneficial to health. Otherwise, off-key recipes will lead you astray.
What is alkaline food? Can you live long after eating it?
What is alkaline food?
There are tofu, peas, protein, milk, celery, potatoes, bamboo shoots, mushrooms, carrots, kelp, mung beans, oranges, bananas, watermelons, persimmons and strawberries.
Weak alkaline food is good for longevity.
In many world-famous Changshou villages in the Caucasus, many people can live to the age of 130 to 140, and there is no particularly good food or tonic for people to enjoy. The only difference is that their drinking water is slightly alkaline, with a pH of 7.2-7.4, which is similar to human blood. It is this slightly alkaline water that keeps the blood vessels of these long-lived people soft and not hardened, thus lowering their blood pressure and keeping their pulse normal. Therefore, scientists have determined that weakly alkaline foods are beneficial to longevity.
The identified weakly alkaline foods are: bean curd, pea, soybean, mung bean, rape, celery, sweet potato, lotus root, onion, eggplant, pumpkin, cucumber, mushroom, radish, milk and so on. Alkaline foods include spinach, cabbage, cabbage, lettuce, carrots, bamboo shoots, potatoes, kelp, oranges, watermelons, grapes, bananas, strawberries, millet, persimmons, coffee and wine.
There are also some foods that are mistaken for acidic foods because they taste sour, such as wild vegetables, tomatoes, vinegar and so on. In fact, these things are typical alkaline foods.
As for acidic foods or weakly acidic foods, apart from all kinds of livestock and poultry meat, common acidic foods include egg yolk, fish eggs, cooked rice, noodles, bread, steamed fish, octopus and so on.
Which foods belong to alkaline foods?
The food we eat every day can be roughly divided into acidic food and alkaline food. From the point of view of nutrition, the reasonable combination of acidic food and alkaline food is the guarantee of good health.
Food acid-base table
Strongly acidic food: egg yolk, cheese, dessert, sugar, tuna, flounder.
Acidic food: ham, bacon, chicken, pork, eel, beef, bread and wheat.
Weakly acidic food: white rice, peanuts, beer, laver, octopus, chocolate, hollow powder, onion.
Strongly alkaline foods: grapes, tea, wine, kelp, oranges, persimmons, cucumbers and carrots.
Moderately alkaline foods: soybeans, tomatoes, bananas, strawberries, protein, prunes, lemons, spinach, etc.
Weak alkaline food: red beans, apples, Chinese cabbage, tofu, cabbage, rape, pears, potatoes.
Most people have a vague understanding of the acidity and alkalinity of food, and think that lemon that tastes sour is acidic. In fact, the acidity and alkalinity of food is not simply judged by taste. The so-called acidity and alkalinity of food refers to whether the inorganic salts in food are acidic or alkaline. The acidity and alkalinity of food depends on the type and content ratio of minerals contained in food: potassium, sodium, calcium, magnesium and iron react in an alkaline way after entering the human body; Phosphorus, chlorine and sulfur are acidic after entering the human body.
Alkaline foods are mainly divided into:
1. Vegetables and fruits;
Second, seaweed;
Third, nuts;
4. Cereals and beans that have sprouted.
Avoid or reduce the intake of the following acidic foods:
First, starch;
Second, animal food;
Third, sweets;
4. Refined processed food (such as white bread);
5. Fried food or cream;
Simple classification of food acidity and alkalinity;
Acidic food: meat of other animals, etc. Animal foods other than milk, such as grains, sweets, cakes, fish, pork and
Alkaline food: plant food other than whole grains, such as fruits, vegetables and bean products; Among animal foods, only milk and animal blood are alkaline foods, and others are acidic foods.
Neutral food: oil, salt, coffee, tea, etc.
1. Strongly acidic foods: egg yolk, cheese, persimmons made of west point or sugar, mullet roe, firewood fish, etc.
2. Acidic foods: ham, bacon, chicken, tuna, pork, eel, beef, bread, wheat, cream, horse meat, etc.
3. Weakly acidic foods: white rice, peanuts, beer, wine, fried tofu, seaweed, clams, octopus and loach.
4. Weakly alkaline foods: red beans, radishes, apples, cabbages, onions, tofu, etc.
5. Moderately alkaline food: dried radish, soybean, carrot, tomato, banana, orange, pumpkin, strawberry, egg white, dried plum, lemon, spinach, etc.
6. Strongly alkaline foods: grapes, tea, wine, kelp buds, kelp, etc.
Maintaining the acid-base balance in human body depends on the pH of food intake and the regulation of acid-base balance by excretory system. The acidity and alkalinity of food refers to the result of metabolism in the body after digestion and absorption. If there are more phosphate, sulfate and chloride ions produced after food metabolism, it is easy to form acids in the body and produce acidic reactions. If more sodium ions, potassium ions, magnesium ions and calcium ions are produced, it is easy to produce more alkali in the body and form an alkaline reaction. This is related to the mineral content in food. Generally speaking, foods containing more minerals such as sulfur and phosphorus are acidic foods; Foods containing more minerals such as potassium, calcium and magnesium are alkaline foods. Some foods, such as refined oil, sugar, starch, etc. , basically do not have the above two elements, so it is a neutral food, these foods do not affect the pH of body fluids. Therefore, the so-called acidic food cannot be understood as sour food and sour fruit, such as tomatoes, oranges, hawthorn, bayberry and so on. After metabolism in the body, it will have an alkaline effect on the human body.
So what are the common alkaline foods?
Such as bean curd, pea, soybean, mung bean, rape, celery, sweet potato, lotus root, onion, eggplant, pumpkin, mushroom, radish, spinach, cabbage, lettuce, mushroom, carrot, bamboo shoot, potato, konjac, kelp, laver, citrus, watermelon, grape, banana, apple and pear.
So what are the main acidic foods?
Such as rice, flour, animal meat (beef, pork, mutton, chicken, duck and so on. ) and eggs.
Generally, middle-aged and elderly people have a daily staple food of 300 ~ 400g g. If you eat some alkaline root foods such as sweet potatoes and potatoes, the amount of staple food can be reduced appropriately. Animal meat is the most important acidic food. Generally, it should be controlled within 100g per day. Usually eat more alkaline foods such as vegetables and fruits to avoid acid constitution.