Every100g crab contains 95 calories, protein13.8g, carbohydrate 4.7g, fat 2.3g, sodium 260mg, potassium 232mg, calcium 208mg, phosphorus142mg, cholesterol125mg, and magnesium 40.

Second, the efficacy of crabs

1, nourishing the body: crabs contain a lot of high-quality protein and vitamins, which are easily absorbed and utilized by the human body. People with weak constitution can effectively nourish their bodies by eating crabs.

2, calcium supplementation: crabs are rich in calcium, calcium deficiency or osteoporosis people usually eat crabs to help supplement calcium.

3. Promote wound healing: Crab contains a lot of high-quality protein and rich amino acids, which helps to improve the immunity of human lymphocytes and promote wound healing, and is very suitable for people who are injured or have surgery.

Extended data:

Precautions for eating crabs:

1, steamed thoroughly, do not eat raw crabs.

River (lake) crabs feed on animal carcasses or humus, so the body surface, gills and gastrointestinal tract of crabs are covered with various bacteria and sludge. Some people get sick easily because they don't wash crabs clean, or because they eat drunken or pickled crabs raw and eat germs or parasites in crabs.

2, eat "fresh", dead crabs are not suitable for eating.

After the death of Eriocheir sinensis, the rigidity period and autolysis period are greatly shortened, and the bacteria in the crab will multiply rapidly and spread into the crab meat, causing vomiting, abdominal pain and diarrhea. Fresh crab shells are bluish-black, shiny, with full navel and Bai Jie abdomen. But the shell of the dying crab is yellow, and the crab's feet are soft, so it is difficult to turn right.

3, steamed and eaten now, do not store.

If you can't finish eating, the rest must be kept in a clean, cool and ventilated place. When eating, be sure to return to the pot and cook it thoroughly.

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