every time you talk about eating fruit, there will be a lot of problems: eating fruit before meals will hurt your stomach? After dinner also cannot eat fruit, hear fruit can ferment in stomach? Are there some fruits that you can’t eat on an empty stomach, such as cherry tomatoes and oranges? Some fruits are especially suitable for eating after a meal. Do the enzymes inside help digestion? It is said that eating fruit hurts the body in the evening. Is it golden fruit in the morning and rotten fruit in the evening? Must fruit eat two hours after meal?

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in a word, the saying that “eating fruit should pay attention to time” has been deeply rooted in the hearts of the people. I wrote an article to explain it a few years ago, but it seems that many friends still don’t understand it. Here, I’d like to rearrange it here, hoping that people can eliminate many worries when eating fruits. Whether

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fruits are suitable for eating at a certain time, we should consider the following factors:

1: what is the chemical composition of fruits, whether the acidity is high, whether there are many tannins and whether the protease activity is strong. 2 people’s gastrointestinal status, whether the digestive tract is healthy, whether the stomach acid and digestive enzymes are enough. 3. How about the overall physiological status? Do you want to gain weight or lose weight? Do you want to control blood pressure, blood fat or prevent anemia and zinc deficiency.

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start with the first question. The acidity of fruit comes from organic acid and astringency comes from tannin. Organic acids are beneficial to the absorption of minerals, but too much may stimulate the stomach. Tannin can coagulate protein, and if the secretion of mucus in the stomach is insufficient, it may damage the surface of gastric mucosa. However, due to years of variety improvement, most fruits are not so sour and astringent at present, but their sweetness is getting stronger and stronger. The so-called “a lot of organic acids” and “a lot of tannins” have lost their chemical basis. Now most oranges are not sour, and little tomatoes have no obvious sour taste. The so-called tannin and gastric acid in {Zi can form “{stone”, i.e. “stomach stone”. It refers to the situation when people eat a large amount of food. For example, in the past, people did not have enough food and picked {fruit from the mountain to satisfy their hunger. The case literature has recorded that this led to {stone}. However, it is not dangerous to eat a few persimmons occasionally under the condition of sufficient food.

therefore, eat acid fruit, even before meals, for people with gastrointestinal health, not to cause adverse reactions. But if the gastrointestinal function is poor, that’s another thing. The second problem of

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is whether the gastrointestinal function is normal. The same before or after eating fruit, some people do not feel bad, some people have discomfort, mainly because the gastrointestinal function is not the same. For example, pineapple, papaya, kiwi fruit and other fruits do contain very strong protease, that is, some active substances that can decompose protein into amino acids and small peptide fragments, which are also called “enzymes” by some mysterious people).

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pineapple tastes very “prickly”, because the protein in it decomposes the protein in our mouth. In theory, it should also be able to break down proteins on the surface of our esophagus and gastric mucosa, which can “hurt the stomach.”. If you eat enough, high activity protease plus a lot of coarse fiber, eating a lot of pineapple may damage the stomach wall. It sounds reasonable to say that you can’t eat a lot of pineapples before meals. There have also been cases of stomach diseases caused by eating pineapples during weight loss by performing stars. But, after all, it takes a lot of pineapples to cause this kind of trouble, and there are some flexible ways. For example, soaking in salt water to eat pineapple, or scalded with boiling water before eating, can make the protease activity decreased, so the “stomach” worry is less.

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on the other hand, soaking beef with pineapple juice and papaya juice before cooking can really make beef tender, because the protease can decompose the protein in muscle fiber. After eating a bit of pineapple after dinner, is it possible to let these proteases help us digest? It’s easy to understand, isn’t it? However, the human stomach bag is not a glass tube. The optimum conditions for protease activity in these fruits are not the pH value of gastric acid – gastric acid is hydrochloric acid. Its pH value is lower than 2 when eating, and most enzymes in fruits and vegetables will lose their activity under this condition. The stomach acid of healthy people is very strong. In the environment surrounded by strong gastric acid, the activity of protease in these fruits is very little, so there is no need to worry about it. Similarly, the so-called protease in fruits and vegetables to help digestion, for healthy people with strong stomach function, in fact, can be ignored. Because the activity of these enzymes in the stomach is already very low, far less effective than the body’s own digestive enzymes.

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on the other hand, eating fruit after a meal may cause fermentation, which largely depends on the power of gastric acid. Where can’t the bacteria survive in the stomach? Fermentation must involve microorganisms. On the contrary, if a person has dyspepsia, little gastric acid secretion, and even the surface of the stomach is still damaged, the protease in the fruit still maintains vigorous activity in the stomach, which may cause damage to the gastric mucosa to a certain extent; and microorganisms can also move in the stomach, especially after eating a large number of fruits, the insufficient gastric acid has been diluted, and the microbial activity The opportunity will be greater.

therefore, the conclusion is very simple, people with a healthy stomach need not worry about eating fruits after meals, and eating a small amount before meals is also OK. For those who need to control their weight, blood pressure and blood lipids, eating fruit before meals is good for them, because it can reduce the amount of meals and eat more fiber and potassium. After eating fruit, they are worried that they will get fat by taking extra energy. On the contrary, for those who are thin and undernourished, their appetite is poor. If they eat a lot of fruits before meals, it may affect their appetite for dinner and hinder their plan to gain weight.

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