2, the efficacy and function of sea crabs have clearing heat and detoxification, stomach and digestion, liver and qi, and can inhibit tumors, with the role of resistance to tuberculosis. At the same time can prevent cerebral thrombosis, arteriosclerosis, high blood fat and other diseases. However, you should not consume too much at one time, because crabs are cold in nature. But the nutritional value of sea crab is very high, because it is rich in protein, vitamin A and calcium, iron, phosphorus and other trace elements.