Dead crabs produce a lot of histamine. People will suffer from histamine poisoning if they eat dead crabs. Because histamine is an allergic poison, it can also be said to be allergic food poisoning. Don't think it doesn't matter to eat only a little dead crab meat. People who are allergic to histamine can cause a reaction even if they take a bite. For example, after eating dead crab 10 minutes to 3 hours, symptoms will appear, such as redness of cheeks, flushing of chest and whole body skin and conjunctival congestion, as well as headache, dizziness, chest tightness, general fatigue and irritability.

Another important cause of poisoning of dead crabs is bacterial infection. Generally speaking, the living environment of wild river crabs is not as good as that of artificial and marine crabs. Once they die, bacteria in and out of the body will multiply, decompose crab meat and produce toxins. Relatively speaking, the risk of bacterial infection is higher, and people are more prone to bacterial infection after eating.

Extended data:

People who are forbidden to eat crabs

1, patients with digestive tract diseases, such as diarrhea, stomachache, chronic gastritis, duodenal ulcer, cholecystitis, cholelithiasis, etc.

2. Patients with liver and kidney diseases, especially those with active hepatitis and hepatic and renal insufficiency.

3, gout patients.

4. Patients with cardiovascular diseases such as hyperlipidemia and hypertension.

5, allergic people, especially those who are allergic to seafood.

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