These parts of crabs can't be eaten.
1, crab's stomach
When you open the crab shell when eating crabs, you will see a triangular bag wrapped in crab paste or crab yolk at the top of the crab shell. This triangular bag is the crab's stomach, which is generally dirty and contains food residues, so the crab's stomach is not suitable for eating.
2, the crab's heart
When eating crabs, after opening the crab shell, there is a white hexagon in the middle of the crab body, that is, the part where crab paste or crab yolk remains. This is the heart of the crab, and this part is also inedible.
3. Crab's gills
When eating crabs, after opening the crab shell, there are two rows of gray soft-to-the-touch parts on both sides of the crab body, which are the crab's gills. The gills are the crab's respiratory organs, which filter the water quality, so many dirty things are left in the gills, so this part is also particularly dirty and unfit for eating.
4. The intestines of crabs
Turn the crab upside down, that is, the crab shell is facing down, and then there is a triangular part, which is opened and pulled out. This is the place where the intestine is located. There is an intestine in it, which will be black if it is dirty. The intestine of the crab is generally crab excrement, so it is not suitable for eating.
These people should not eat crabs.
1, gout patients
Gout is a metabolic disease caused by metabolic disorder of purine, nucleic acid, uric acid and other substances. Foods with high protein and high purine are the "enemies" of gout patients. Crab's high-protein and high-purine food, gout patients must stay away, and don't try the "gout package" of "seafood+beer".
2. Allergic people
Protein contained in crabs is a foreign protein, which belongs to allergens. Some people with sensitive constitution may be allergic to eating crabs, causing allergic symptoms such as diarrhea, vomiting, abdominal pain, rash and itchy skin. Most patients with urticaria, dermatitis, eczema and other skin diseases are allergic, and eating crabs in such patients may aggravate their condition.
3. People with spleen and stomach deficiency and cold
Crab is a cold thing. Eating too much will inevitably damage the yang of the spleen and stomach, thus reducing the gastrointestinal digestive function. People who are prone to cold hands and feet and poor spleen and stomach function may have bad symptoms such as abdominal distension and diarrhea when eating crabs. Therefore, such people should try not to eat crabs or eat less crabs. In addition, menstrual women should also avoid eating crabs, so as not to cause palace cold and induce or aggravate dysmenorrhea symptoms. Experts suggest that it is best to eat crabs with spicy foods such as yellow wine and ginger, and steamed crabs can also add a little perilla.
4. Patients with cardiovascular and cerebrovascular diseases
The content of cholesterol in crab paste and crab roe is extremely high. People suffering from cardiovascular and cerebrovascular diseases such as hyperlipidemia and hypertension and obesity are prone to increase the risk of atherosclerosis by eating crabs. It is suggested that this kind of people eat less crabs. If they really want to try early, it is best to selectively eat only crab meat instead of crab paste.
5. Patients with cholecystitis
Patients with cholecystitis should eat less foods with high fat and cholesterol, and the cholesterol content of crabs is very high, so cholecystitis should not eat crabs.
Pay attention to these when eating crabs.
1, can't eat too much.
First, because the content of cholesterol in crab paste is very high, eating too much will increase the level of cholesterol and triglyceride in the blood, which is easy to induce pancreatitis and cholecystitis.
Second, crabs are cold food. If they are eaten too much at a time or continuously for a short time, the stomach and intestines can't stand it, which will easily cause spleen and stomach deficiency, thus reducing the digestive function of the stomach and intestines.
Therefore, don't be greedy when eating crabs, and enjoy the delicious food in moderation. Dietary Guidelines for China Residents suggest that you should eat 40~75g of products (edible) every day, and the edible part of crabs accounts for about 30% of your body weight, which is about 133~250g when converted into crabs with shells, and you should eat crabs more than three times a week.
2. Don't eat raw crabs or drunk crabs.
Crabs live in water and feed on animal carcasses or humus. There are many pathogenic bacteria and parasites on their body surface, gastrointestinal tract and gills, among which paragonimiasis is the most common. Eating raw or soaked in wine is likely to cause infectious poisoning.
It has been found that the probability of infection with Paragonimus is 20% when crabs are eaten with a little heat, 55% when eating pickled crabs or drunken crabs, and 7 1% when eating raw crabs. Therefore, eating crabs must be steamed and cooked thoroughly.
3. Don't eat dead crabs
The digestive gland of crab contains many pathogenic bacteria and harmful bacteria. After the crab dies, these bacteria will multiply in a certain environment and temperature. Bacteria will decompose protein in crab meat and crab roe into toxic histamine. With the extension of death time, more and more histamine will be accumulated in crabs. Even after cooking, this toxin is not easy to be destroyed, and eating it will cause anaphylactoid poisoning.