Dead crabs produce a lot of histamine. People will get 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 that just eating a little dead crab meat doesn't matter. 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, there will be symptoms such as cheek redness, flushing of chest and whole body skin, conjunctival congestion, headache, dizziness, chest tightness, general fatigue, irritability and so on.

It should be noted that a 3-4 crab can only eat 60 grams to 80 grams. The Dietary Guide for China Residents suggests that everyone should eat 40 to 75 grams of aquatic products every day, so don't eat more than one crab every day.

People with allergies, hyperuricemia or gout, pregnant women, the elderly, children and the infirm, it is best to eat less or not to eat crabs. If caught by a crab, wash the wound with water immediately and disinfect it with iodophor. If it is swelling and bleeding, go to the hospital quickly.

Extended data

Taboos for eating crabs:

1, crabs should not be eaten with yogurt.

Crab belongs to cold food, which is easy to cause diarrhea, while yogurt is rich in lactic acid bacteria, which can accelerate gastrointestinal peristalsis. Therefore, yogurt and crabs are eaten at the same time, especially for people with spleen and stomach deficiency and cold.

Crabs should not be eaten with beer.

Many people eat crabs and drink beer, which is easy to cause gout attacks. Crab belongs to high purine food, and uric acid, the metabolic end product of purine in human body, will aggravate gout. Therefore, patients with abnormal purine metabolism or gout must be careful to eat crabs.

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