Dead blue crabs cannot be eaten. Dead crabs will produce a lot of histamine, and people will have histamine poisoning when they eat dead crabs, because histamine is an allergic poison, which 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 after taking a bite. For example, some people will have symptoms after eating dead crab 10 minutes to 3 hours, such as flushing on cheeks, flushing on chest and whole body skin and conjunctival congestion, as well as headache, dizziness, chest tightness, general fatigue and restlessness.

Extended data:

Precautions for eating crabs

1, eat crabs raw and cooked. Although crabs eat drunken crabs, due to water quality problems, crabs often breed a lot of bacteria, so when eating crabs, they should be cooked, not eaten raw.

2. Eating crabs should be controlled within 2 at a time. Generally speaking, eating 1~2 crabs at a time is enough. From a nutritional point of view, it contains high cholesterol and protein, which is not easy to digest.

3. Crabs should not be eaten with tea, melons, pears, peanuts, loach and other foods. Crabs are cold, and eating cold together will damage the spleen and stomach, leading to diarrhea.

People's Network-Why do you have to eat live crabs when eating crabs? Eating dead crabs is really harmful.