River crabs can be eaten when they are just dead, but river crabs that have been dead for too long are best not to be eaten, otherwise the taste of dead river crabs will be more demolished, and dead river crabs contain some poisonous substances, which will affect our gastrointestinal health, so it is recommended that we should choose fresh river crabs. If we are selecting river crabs, we should avoid those that are about to die as well as drunken crabs.

I, just dead crabs can eat?

For just dead crabs, then it is not allowed to eat.

Not only just dead crabs, but also for those dying crabs, drunken crabs, crabs of unknown origin, are not recommended to eat. Because these crabs contain substances that are harmful to the body, eating them can easily lead to food poisoning or induce other diseases. Therefore, you should never think of eating dead crabs for the sake of wasting ingredients.

Two, why can't we eat the dead crabs?

1, dead crabs taste worse

In the body of the crab contains histidine, histidine in the decarboxylase enzyme under the action of histamine and histamine-like substances. After the crab is dead, then the inside of the intestinal gland is easy to fall apart, inside the histidine and digestive enzymes will decompose the crab meat, so the dead crab taste meat will be greatly deteriorated, the taste to eat is also very poor.

2, eat dead crabs are easy to allergy

Because of the histidine contained in the crab meat, after the death of the crab will be transformed into histamine, which is an allergenic substance; when the human body ingested, it will lead to vasodilatation, skin and mucous membranes congestion and edema, urticaria, nasal mucus, nasal congestion, bronchial asthma, etc., and severe respiratory and circulatory failure, a life-threatening condition. The most important thing is that you can't get rid of it.

3, dead crabs can easily lead to food poisoning

Crab is an omnivore, living in the water in the mud, eat food for some of the more miscellaneous food, these foods contain a large number of bacterial viruses; crab alive, their own metabolism can fight with microorganisms and inhibit the reproduction of bacteria, and after the death of the crab, microorganisms will take advantage of the nutrients to rapidly reproduce, resulting in crab The crab will rot and deteriorate, producing too many toxins, and it is easy for people to have diarrhea and abdominal pain, vomiting, fever and other symptoms of poisoning after eating it.

Three, be careful when eating crabs raw

In many coastal areas, many people like to use crabs to make drunken crabs, which is what we call eating crabs raw. In everyone's eyes, we all think that after the crab soaked in white wine, then you can kill the bacterial viruses in the body, and coupled with drinking some small wine, it can be very good to kill bacteria, in fact, this is the wrong idea. Crabs live in a very heterogeneous environment, the body may be with parasites called "cystic larvae", white wine in the alcohol can not kill this parasite, so eat drunken crabs, if not thoroughly cleaned, this parasite is easy to enter the body, through the intestines to reach the lungs, and even reach the liver, the brain and other organs, causing organ cysts. causing organ cysts. Therefore, I still recommend that you eat crab is best to eat cooked, after high temperature can be inside some parasites and bacteria to kill off.

Four, crab can not eat with what?

1, crabs and persimmons can not be eaten together

Crab is rich in protein, encountered persimmons in the

Crab is rich in protein, encountered persimmons in the