You can eat persimmons after an interval of 2 hours to allow the crab to digest.

Since crabs and persimmons are products of the same season, the probability of eating them at the same time is higher. Persimmons contain the same tannic acid as that found in tea, and eating them together is only indigestible and not poisonous.

Persimmon can not be eaten with crab, the reason is because persimmon tannin content is high, easy and crab and other high-protein foods produce precipitation, resulting in stones.

As long as the consumption of persimmons after the astringent treatment of persimmons, ellagic acid content is very small, and protein can not produce much precipitation. So persimmons can be eaten with crabs.

Expanded Information

Eating crabs and other foods that cause abdominal pain and diarrhea may generally be a problem with your crabs. When eating persimmons, black dates, hawthorn, pomegranate and other pectin-rich, tannic acid-rich foods on an empty stomach alone in large quantities, such foods will produce clots in the stomach under the action of gastric acid and the mechanical rolling of the stomach muscle to stay in the stomach, which can also trigger phytoliths.

Clinical manifestations of epigastric pain, nausea and vomiting or vomiting a small amount of coffee-colored blood, often complicated by gastric ulcers, pyloric obstruction, rare abdominal pain and diarrhea.

Secondly, crabs are a high-quality protein food that may promote gastrolithiasis on the basis of a strong acidic environment in the stomach, but a high-protein diet is only one of many conditions that promote it.

In other words, even if you don't eat crabs on persimmons, just eating a large amount of persimmons or crabs on an empty stomach alone may cause gastrolithiasis! Although in real life a hairy crab with a large persimmon eating method is not common, but if you prefer this mouth, occasionally eat once or twice, as long as the ingredients are fresh, cooked properly and strong spleen and stomach, will not vomit diarrhea or even poisoned to death.

People's health network - eating crab also need to understand the "cold knowledge"

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People's health network - crab + persimmons = diarrhea? Scientific Interpretation of Food Compatibility