It's persimmon season again, and the first frost has arrived, which is a good time to eat soft persimmons. It is said that eating persimmons on this day will not? Snuff, or you may crack your lips in winter, just right (persimmon). Persimmons are available every year, and there are many rumors. There are many concerns about persimmons on the Internet, such as "Can persimmons be eaten on an empty stomach" and "Can persimmons be eaten on an equal footing with seafood, crabs, yogurt, wine and bananas" ... Did your circle of friends receive such a message: Tell your family and children that persimmons will be poisoned in the season when they are on the market?

In fact, the saying that persimmons are similar to other foods comes from tannic acid (also called tannic acid, tannic acid and gallic acid) in persimmon cells, which is what people call astringent substances. When eating persimmon, the cells are chewed, and the tannic acid inside will flow out and combine with the saliva protein in the mouth, which will make people feel "astringent" and stimulate the mucosal protein in the mouth to make it astringent.

Tannic acid widely exists in plants. Soluble tannic acid can combine with protein to form insoluble precipitate, which cannot be decomposed in gastrointestinal tract. Acid and alcohol contribute to that formation of this precipitate. However, the content of tannic acid in persimmon varies greatly, generally between 0.4% and 4%. The tannin content of fully sweet persimmon can be as low as 0. 1% after ripening, and as high as 4% when astringent persimmon is immature.

Persimmons with high tannic acid content may indeed form "stomach persimmon stone" with protein in seafood.

If you eat a lot of tannic acid, there will be a lot of protein in your stomach. On the one hand, tannic acid will form an insoluble complex with protein, and tannic acid can also inactivate pepsin. In addition, pectin, fiber and other ingredients in persimmon are mixed together to form "stomach persimmon stone", which causes digestive tract obstruction and abdominal pain.

The legendary "persimmon and yogurt", "persimmon and crab" and "persimmon and seafood" can't be eaten together, because crabs, yogurt and seafood are all high-protein foods. Persimmon has high tannic acid content, so it can be eaten in large quantities at one time. However, stomach persimmon stone is not fatal. As long as you see a doctor in time, it can be completely solved.

Eating persimmon and banana on an empty stomach is easy to upset the stomach, but it is not fatal.

Bananas are rich in organic acids (malic acid, citric acid, etc. ), and persimmon is rich in tannic acid. Eating this kind of fruit with high acid content on an empty stomach or in large quantities at one time is easy to cause gastrointestinal discomfort. Therefore, it is not that persimmons and bananas will be poisoned if eaten together or successively, but we should pay attention to the timing and quantity of eating, so as not to affect the stomach.

What you can't eat together is not "persimmon", but "astringent persimmon"

Obviously, it is not "persimmon" that can't be eaten with crabs, yogurt and seafood, but "persimmon with high tannic acid content". The human body has a natural tannic acid "detection device"-tongue. Tannin has astringent taste, and the higher the content, the more astringent it is.

So, the answer is simple: don't eat astringent persimmons! If it is a ripe sweet persimmon, or an astringent persimmon that has not been astringent after "astringent treatment", it doesn't matter if you eat it with these foods; If it is astringent persimmon, it is not safe for a person to eat it, because you can't know what is in your stomach!

Can I eat persimmons on an empty stomach?

I'm worried that I can't eat persimmon on an empty stomach, mainly because the tannic acid in persimmon is too high. Foods with high tannin content do increase the risk of stomach persimmon stone. The reason is that tannic acid may combine with protein (mainly from protein in food, digestive enzymes in the stomach and exfoliated epithelial cells in the stomach) under the action of gastric acid to form protein tannic acid, which is insoluble in water, deposited in the stomach, and then coagulated with pectin and plant fiber to form gastrolith. In fact, not all persimmons are high in tannin. On the contrary, the commercialized persimmons are basically astringent, and the tannic acid content is basically low. Eating persimmons on an empty stomach, as long as it is not uncomfortable, basically do not worry too much about the formation of stones. After all, who wants to eat immature persimmons that are too astringent to pull out their tongues?

We should know that high tannic acid is not the only factor to form stones, and low concentration of gastric acid and low gastric motility are also the factors to form vegetable gastrolithiasis in human body. At present, a large number of patients with gastric persimmon stone are mostly accompanied by problems such as low gastric acid and insufficient gastric motility, and many of them are even patients with gastric ulcer. If you are a patient with gastric ulcer or have insufficient gastric motility, it is best not to eat persimmons on an empty stomach, especially immature persimmons.

If the gastrointestinal function is good, you can eat a persimmon before and after meals. Persimmon has a high nutritional value, and its vitamin and sugar content is about 2 times higher than that of common fruits1-. If a person eats/kloc-0 persimmon a day, the intake of vitamin C can basically meet half of the daily requirement. Persimmon is also rich in pectin. Pectin is a kind of water-soluble dietary fiber, which has a good laxative effect and has a good effect on correcting constipation and maintaining the normal growth of intestinal flora. Therefore, eating some persimmons is very beneficial to human health.