It can be judged by referring to the contents of calcium and phosphorus in food. Calcium is an alkaline food and phosphorus is an acidic food. Therefore, we should carefully examine whether the food we eat on weekdays tends to be too acidic.
White rice is a typical acidic food. China people who take it as their staple food will easily become acidic if they don't consume a considerable amount of alkaline food. Especially in recent years, environmental pollution, pesticide pollution of fruits and vegetables, chemically processed food and other hazards caused by industrial development have intensified, and soil acidification has led to a relative lack of calcium in food.
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 list:
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: 1. Starch; Second, animal food; Third, sweets; 4. Refined processed food (such as white bread); 5. Fried food or cream; Six, beans (such as peanuts, etc.). )
There are two reasons for flatulence, one is that too much gas is swallowed, and the other is that too much gas is produced by the large intestine.
1. Swallow too much gas
About 90% of the gas in the intestine is swallowed through the mouth, and the air swallowed by normal people is about 500 ~ 1000 cc every day. The main components in the air are oxygen and nitrogen. When the human body swallows air into the small intestine, oxygen will be absorbed, while nitrogen will reach the large intestine and become the main component of gas in the large intestine. In many cases, the human body will unconsciously swallow air, such as chewing gum, wolfing down food, talking while eating, drinking carbonated drinks such as soda, cola and beer, or eating some foods that are easy to produce gas. In addition, some people will involuntarily swallow saliva when they are nervous, leading to an increase in intestinal gas.
2. The large intestine produces too much gas.
Intestinal gas is produced because of intestinal peristalsis disorder, which leads to excessive fermentation of food by bacteria and produces a lot of gas; Or it is because there is something wrong with a digestive enzyme in the intestine, which leads to indigestion of a certain food. The most common is "lactose intolerance", that is, the gastrointestinal tract cannot digest lactose. At this time, as long as you don't eat foods containing lactose, there will naturally be no symptoms.
Excessive gastric acid can also cause flatulence, and excessive gastric acid and pancreatic juice will produce carbon dioxide after neutralization in the stomach, leading to flatulence and suffocation. In addition, the anus is too tight to exhaust, and chronic constipation will gradually form the phenomenon of abdominal flatulence. We can directly analyze the proportion of gas content in the body, and then analyze the causes of abdominal flatulence. If you swallow too much gas, the concentration of nitrogen and oxygen in the intestine will be higher. If it is flatulence caused by intestinal bacterial fermentation, the concentration of hydrogen and oxygen in the intestine will be higher.
Food that easily produces gas.
Because the human body lacks enzymes to digest carbohydrates such as oligosaccharides and polysaccharides, these foods are not digested in the small intestine, but are decomposed and utilized by intestinal bacteria in the large intestine, thus producing a large number of gases (carbon dioxide, hydrogen, methane). These "gas-producing foods" that may cause abdominal distension include: beans, onions, eggplant, sweet potatoes, potatoes, corn, citrus fruits, beverages with sweeteners (sorbitol) and desserts.
Gas-producing food list
Food gas-producing food
Corn, potato, taro, sweet potato, potato, glutinous rice, brown rice, miscellaneous grains.
Vegetables onion, cauliflower, leek, cabbage, cucumber, radish, eggplant, cabbage, kohlrabi,
Lentils, sauerkraut and shallots
Fruit apples, watermelons, cantaloupes, honeydew melons, apple juice.
Beans, dried beans, red beans, mung beans, soybeans, peanuts and peas.
Milk and dairy products
Beverage soda, yakult, soybean milk, coke.
Others: coffee, strong tea, chocolate, fried, high-sugar dessert, pepper.