Dead crabs produce a lot of histamine. If people eat dead crabs, histamine poisoning will occur. Because histamine is an allergic poison, it can also be said to be allergic food poisoning. Don't think it's okay 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 crabs for 65,438+00 minutes to 3 hours, symptoms such as cheek redness, flushing of chest and whole body skin and conjunctival congestion will occur, as well as headache, dizziness, chest tightness, general fatigue and irritability.

Another important cause of dead crab poisoning 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 likely to be infected with bacteria 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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