Generally, crabs that are fully preserved and not spoiled can still be eaten after a night and will not have any adverse effects on the body.

But it is not recommended to eat dead crabs, crabs must be consumed fresh, dead crabs are rich in bacteria and viruses, some people even cause food poisoning after consumption, produce diarrhea, nausea and other uncomfortable reactions, serious and even produce shock, coma and other symptoms, very dangerous.

What are the contraindications to eating crabs

One, do not eat dead crabs

Parasitic bacteria in the body of dead crabs will reproduce and spread to the crab meat, making the protein decomposition to produce histamine. The longer the crab is dead, the more histamine accumulates in the body and the more toxic it is. Even if the dead crabs are cooked thoroughly, the toxin is still not easily destroyed, which will cause nausea and vomiting, flushed cheeks and rapid heartbeat after consumption. Have you memorized one of the taboos of eating crabs?

Two, it is best not to eat overnight crab

Crab is a food containing more histamine acid, overnight leftover crab species histidine in the role of certain vitamins, will be decomposed into histamine, back to the pot heating along with the pathogenic microorganisms that can be killed, but can not destroy the toxin, which will lead to histamine poisoning. Therefore, eat crabs must bear in mind, the best steam now eat, the longest not more than 4 hours.

Three, do not eat raw crab, drunken crab

Crab body contains a variety of pathogenic microorganisms. In particular, its body of Schistosoma pneumoniae larvae infection degree is very high, resistance is very strong, single with yellow wine, white wine soaking and can not kill. Eating raw crabs, drunken crabs, very easy to induce schistosomiasis, causing coughing and hemoptysis, if the virus enters the brain, it will also cause paralysis Oh. Eating crabs is a good idea, so we must carefully select crabs in the purchase of crabs.