CATDOLL : CATDOLL: Why do crabs have parasites?

1. Why do crabs have parasites?

Suggestion: Condition analysis: Aquatic animals (fish, shrimp, crab, snail, clam shells, etc.) have many parasites. In fact, all animals have many parasites.

Instructions: Just steam the crab until cooked through, and don’t eat the crab’s gills.

2. Are there any parasites when eating crabs?

Is it because the crab is not cooked or is it overnight food? Generally, humans are not infected with parasites through the digestive tract, that is, they are not infected by eating. Because the digestive tract contains a large amount of digestive enzymes, which will corrode the adults or larvae, so under normal circumstances, the small white worms you see will not constitute parasitism. However, it is not ruled out that the eggs eaten are some types of parasite eggs that can resist the digestive enzymes in the human intestine. It is recommended to take the common "two tablets" (remember to eat on an empty stomach) for routine prevention. There will be no symptoms in the early stages of parasitic infection. The hospital can provide eosinophil examination, which is a preliminary screening test for parasitic infection... Soju? Is it related to the topic? I don't know... I hope the above can help you.

3. Will you definitely be infected with parasites if you eat crabs raw?

Not necessarily, but there is a chance of infection, especially for people who often eat raw crabs, the chance of infection is greater.

4. Can dead hairy crabs be eaten?

Dead crabs are poisonous and cannot be eaten

According to traditional Chinese medicine, crabs are salty and cold in nature. People who often have cold hands and feet (especially women), or people with weak constitutions or frail bodies should not eat too much. Alternatively, you can add more ginger, onions, garlic and other spices when cooking, so that these ingredients with hot properties can neutralize the coldness of the crabs. Or drink a cup of brown sugar ginger tea after eating crabs to warm the stomach, remove the fishy smell, and drive away the cold. In addition, the folks believe that it is not advisable to eat cold fruits, such as persimmons, before and after eating crabs. In fact, this is to avoid eating too many cold foods, which will cause discomfort caused by the body's coldness.

Crabs are scavengers with strong immunity. They eat a lot of bacteria and viruses, but they are suppressed by the crab's immunity. Once the crab dies, or even if it is not dead yet, but is dying, the bacteria and viruses will multiply in large numbers and breed some biological toxins. Because crabs like to eat decaying substances such as animal carcasses, they often carry pathogenic bacteria and toxic substances in their gastrointestinal tract. Once they die, these bacteria multiply in large numbers. In addition, crabs also contain more histidine. Histidine is easy to decompose and can produce histamine and histamine-like substances under the action of decarboxylase. Especially when the crab dies, histidine decomposes more quickly. As the crab dies longer, the more histamine accumulates in the body. When the histamine accumulates to a certain amount, it will cause poisoning. So if you see a crab half-dead and listless, it is best not to eat it.

If people eat such crabs, they will suffer from serious food poisoning, dehydration, electrolyte imbalance, convulsions, and even shock, coma, sepsis, etc. Common symptoms include nausea, vomiting, abdominal pain, and diarrhea.

Some people may ask, after the crab is cooked, isn't it still dead? Aren't we still eating dead crabs? Why can't we eat crabs that died naturally?

There is a difference in this. If the crab dies naturally, the toxins in its body will double, and these toxins will decompose the crab meat. However, for the crabs that you cook yourself, the toxins in the body have already been eliminated, and they have also been subjected to high temperatures, which effectively prevent the spread of bacteria and better kill bacteria.

And after the water boils, you should cook it for another 20 minutes to kill the bacteria in the crab meat. Crabs taste very delicious, but if the crabs die due to improper storage, it is better to throw them directly into the trash can, for your own health and the health of your family.

Although crabs are rich in nutritional value and there are many things to pay attention to when eating crabs, you should never eat dead crabs. After reading the editor's introduction, do you know more? If you are a crab lover, you should remember the precautions for eating crabs to avoid affecting your health.

What kind of hairy crabs can't be eaten?

1. Dead crabs cannot be eaten

There are a lot of bacteria inside and outside the crab. Live crabs can excrete bacteria through metabolism; once the crab dies, the bacteria in its body will multiply and decompose the crab meat. Some bacteria also produce toxins, which will cause food poisoning if people eat them.

In addition, crabs contain more histidine. The longer the crabs have been dead, the more histamine they accumulate in their bodies. Even if the crabs are cooked, this toxin is not easily destroyed. Histamine is a toxic substance. When it accumulates to a certain level in the body, it will cause poisoning.

2. Crabs cannot be eaten raw

The body surface, gills and gastrointestinal tract of crabs are full of various bacteria and sludge. Crabs often carry lung fluke larvae metacercariae and Vibrio parahaemolyticus. If they are not sterilized at high temperature, lung flukes can cause lung damage after entering the human body. If Vibrio parahaemolyticus invades the human body in large quantities, infectious poisoning will occur, showing symptoms such as intestinal inflammation, edema and congestion. Therefore, crabs should be steamed and cooked thoroughly.

Another thing to note is that there is a way of eating crabs soaked in wine and eaten raw. This way of eating is also very dangerous and is generally not recommended at home.

3. Eat only one crab per meal. You can only eat one crab per meal at most. It is not advisable to eat too much crab, and it is best not to eat more than one crab per meal. Eating too many crabs can cause indigestion symptoms such as bloating, and for some people who already have diseases, eating too many crabs will aggravate the condition.

5. Is this what crabs look like if they are infected with parasites?

Most crabs have parasites. The infection rate and degree of lung fluke - the larvae of the tall crab worm in live crabs are very high. Lung fluke parasitizes in the lungs, irritating or destroying lung tissue, causing coughing and even hemoptysis. If it invades the brain, it will cause paralysis.