Blue crab is another name for crab, and cream crab generally refers to female blue crab, female crab has cream and male crab has yellow, so we can judge the sex of crab by whether crab has cream or crab yellow. When the female crab comes in the breeding season, it will have cream color in its body, while the male crab will have yellow color in its body. The female crab with cream is called cream crab, and the abdomen of female crab and male crab is different. The abdomen of the male crab is long and narrow and sharp.
Scylla serrata is a kind of food with high potassium and low sodium, which is more beneficial for patients with hypertension. The calcium content in its liver is extremely high, second only to Oncomelania hupensis, shad, shrimp koji, shrimp skin and clove fish, and its natural organic chemical calcium is easy for human body to digest. Other nutrients such as magnesium, iron, copper, zinc and manganese in Scylla serrata are also high. The selenium content of all components of Scylla serrata is very high. Selenium is a component of lipoic acid lactate dehydrogenase in human body, which participates in the production of coenzyme A and coenzyme Q, and has the functions of maintaining cytoplasm structure and function, antioxidation, scavenging oxygen free radicals, antagonizing and reducing the toxic and side effects of some harmful substances, and stimulating human immunoglobulins and antigens. There are many functional selenium components in liver, pancreas and kidney, but the selenium components in blood cells and hair of cancer patients are reduced. Therefore, Scylla serrata is a kind of ointment insect, which has the functions of nourishing and health care, delaying aging and preventing cancer.