Pike crabs can't be eaten when they are dead. A large amount of histamine is produced in the body of dead crabs. People who consume dead crabs can develop histamine poisoning. Because histamine is an allergic poison, it can also be said to be allergic food poisoning.

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Crayfish, crabs, screws, shellfish, fish, etc. may carry parasites, and if you eat raw or eat undercooked, it's easy to get infected with parasites. Eat crabs should pay attention to the following points:

1, thoroughly cooked. Steam the crabs continuously for 20 minutes to 30 minutes at a high temperature of 100 degrees Celsius.

2, do not eat drunken crab, cold raw crab.

3. Choose fresh crabs and wash them before putting them in the pot.

Dead crabs produce large amounts of histamine in their bodies. People who consume dead crabs can develop histamine poisoning. Because histamine is an allergic poison, it can also be called allergic food poisoning. Don't think it doesn't matter if you eat just a little bit of dead crab meat.

People who are allergic to histamine can have a reaction to even one bite. For example, symptoms such as flushed cheeks, flushed skin and conjunctival congestion on the chest as well as the whole body, as well as headache, dizziness, tightness in the chest, generalized fatigue and irritability can appear within 10 minutes to three hours of eating dead crabs.

Dead crabs should never be eaten. Because dead crabs another important cause of 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 dead, bacteria inside and outside the body will multiply, decompose the crab meat and produce toxins. Relatively speaking, the risk of bacterial infection is higher and people are more likely to develop bacterial infection after consumption.

It should be noted that a 3-two to 4-two crabs can be eaten where only 60 grams to 80 grams. Dietary guidelines for Chinese residents recommend 40 grams to 75 grams of aquatic products per person per day, so don't eat more than one crab per day.

Allergic people, patients with hyperuricemia or gout, pregnant women, the elderly, children, the frail, it is best to eat less or no crab. If you are caught by a crab, you should immediately flush the wound with water and disinfect it with iodine vapors, and if the redness and swelling don't go away and the bleeding doesn't stop, you should rush to the hospital.

References:

People's Daily News Why you can't eat dead crabs