It is again the season to eat persimmons, persimmons are a favorite fruit, sweet and delicious, rich in nutrients. Persimmons are rich in carotene, riboflavin, vitamins and other trace elements. Containing vitamins and sugar is about 1-2 times higher than the average fruit. Therefore, eating persimmons in moderation is very beneficial to human health. However, when we want to enjoy the sweet and tantalizing flavor, persimmons on the endless variety of taboos but always let people eat not happy. For example, “eating persimmons on an empty stomach will stomach bleeding, persimmons and crabs eat together will be poisoned, persimmons and goose eat together will die ……..”. In the end, these rumors have a scientific basis? In fact, the reason for these rumors, are tannins cause trouble. So, in the end, what is ellagic acid? Ellagic acid, is the source of astringency in persimmons. In addition to persimmons, grapes, hawthorn, pomegranates and other fruits, and even the tea you drink are rich in ellagic acid. Under certain conditions, ellagic acid can combine with proteins to form ellagitannin, a precipitate with large molecules and insoluble in water. When the stomach more gastric acid, ellagic acid protein and food pectin, cellulose, etc., the persimmon skin, persimmon core bonded together, in the stomach quickly formed gastric stone, and cause gastric discomfort. However, the premise of these discomforts is: 1, eaten in large quantities. 2, persimmons contain high tannins. In daily life, the content of ellagic acid in different persimmons is different, generally between 0.4% and 4%. When the persimmon is not ripe, the ellagic acid content is higher, especially in the outer skin layer of the pulp – that is, near the skin of the persimmon, the ellagic acid distribution is higher. When we taste persimmons, the more astringent the flavor, the higher the ellagic acid content. Knowing this science, many rumors about persimmons go away. As long as you are in good health, it is perfectly safe to eat sweet persimmons or artificially de-astringent persimmons on an empty stomach. High-protein foods (yogurt, crab, goose, eggs, etc.) can be eaten with persimmons. However, more acid secretion and gastrointestinal function of the weaker people eat persimmons on an empty stomach may still cause some degree of discomfort, so it is best to eat after meals, a small amount of food. Diabetic patients can also eat persimmons, but persimmons contain high sugar content, must eat less, to relieve cravings on the line, after eating persimmons, it is appropriate to eat less of some staple foods, if necessary, to monitor blood glucose levels. In short, as long as the consumption of persimmons after de-astringent treatment, and do not eat too much is generally not a problem. Finally summarize the precautions for eating persimmons: 1, moderate consumption, no more than 1 ~ 2 / day. 2, do not eat without desiccated persimmons. 2, do not freely eat persimmons that have not been desiccated. 3, do not eat unripe persimmons. 4, people with weak gastrointestinal function, try not to eat astringent persimmons. 5, after eating persimmons after obvious discomfort, it is best to promptly consult a doctor.