Just after the first frost, it is the best time to eat persimmons. However, there are many taboos about eating persimmons on the Internet and in the circle of friends, and there are even rumors that "a little girl ate persimmon yogurt together and died of poisoning".
Let's not delve into the truth of this rumor for the time being. Let's talk about it first Are those enduring taboos related to persimmons true or false? How to eat sweet and attractive persimmons?
Tannic acid "is working"
There is a hole to make the wind. The taboo about persimmon stems from its rich tannic acid.
Tannic acid, also called tannic acid and tannin, is a kind of polyphenol. Under certain conditions, it can combine with protein to form water-insoluble precipitation "tannin". When there is a lot of gastric acid in the stomach, tannic acid protein, pectin and cellulose in the food combine persimmon peel and persimmon core together, and quickly form a gastrolith in the stomach, also called "stomach persimmon stone".
This "stomach persimmon stone" causes mechanical damage to the gastric mucosa, compresses the gastric wall, blocks the pylorus, and further stimulates the increase of gastric acid secretion. Therefore, patients with acute and chronic gastrolithiasis often have symptoms such as epigastric pain, abdominal distension, nausea, vomiting, melena, and even erosive gastritis and gastric ulcer. In severe cases, surgery is needed to remove the stomach stones.
Persimmons in circulation in the market should not be eaten with yogurt, crabs and eggs, because these foods are rich in protein. Tannic acid in persimmons may combine with some protein in these foods, which will cause stomach upset and affect protein's digestion and absorption.
Persimmons should not be eaten with sweet potatoes, hawthorn and black dates, because these fruits are rich in tannic acid, pectin and cellulose. The cellulose in these foods is easy to combine with tannic acid protein, which is easy to cause flatulence and may also aggravate the indigestion after eating persimmon.
The content of tannic acid varies greatly.
Seeing this, perhaps many people will sigh, "Do you want to stay away from persimmon, a delicious fruit?" ? 」
Of course not. The premise of these discomforts is "eating more" and "persimmon contains high tannic acid". In fact, the tannic acid content in different persimmons is different, generally between 0.4% and 4%, with a difference of up to ten times.
Generally speaking, persimmons can be divided into astringent and sweet types. Sweet persimmons can be naturally astringent on trees before ripening, and astringent persimmons need to be picked after ripening, artificially astringent and after removing too much tannic acid, they are suitable for sale and consumption. Persimmons in the market are mostly astringent with low tannic acid content.
However, when the persimmon is immature, the tannic acid content is high, especially the skin of the pulp, which is close to the persimmon skin.
The simplest method can be used to judge whether the tannic acid content of persimmon is high. Simply put, the astringent the taste, the higher the tannic acid content. According to the dietary guidelines of China residents, it is recommended to eat 200 ~ 400g of fruit every day. Usually eating 1 and two medium-sized ripe persimmons (about 150 ~ 200g/ piece) will not cause adverse reactions.
Matters needing attention in eating persimmons
1, persimmon contains tannin, which is easy to combine with iron, thus hindering the body's absorption of iron, so anemia patients should eat less. Persimmons should not be eaten when iron is supplemented.
2. The sugar content of persimmon is 10.8%, and most of them are simple monosaccharides and disaccharides, which are easily absorbed by human body and raise blood sugar. People with diabetes, especially those with poor blood sugar control, should avoid eating.
3, persimmon contains tannic acid, which can cause constipation, which is not conducive to the recovery of patients with myocardial infarction, so it is not suitable for consumption. People with long-term constipation should not eat it.
4, persimmons are cold, and those with cold stomach are not suitable for eating. Persimmon is not suitable for patients with chronic gastritis, delayed emptying and dyspepsia and patients after subtotal gastrectomy.
There are many precautions when eating persimmons. Persimmons are cold, and people with cold stomachs can't eat them! There are many health tips to recuperate your body! Everyone should be responsible for their own health, and remember the precautions that eating persimmons has a health care effect on the body!