It's crab paste.

The clear paste in crabs is crab paste.

Crab paste, a collection of semen and organs from the spermathecae of male crabs, is also a sign that male crabs are strong and mature. In its natural state, crab paste is a greenish-white translucent jelly-like liquid, and when steamed, it is a translucent, sticky, and somewhat greasy gelatin. The integrity of the crab paste has nothing to do with its taste or nutritional value.

Crab paste it contains a lot of essential protein, fat, phospholipids, vitamins and other nutrients, nutritious. It can be made into many delicacies: crab congee, crab tofu and so on.

Crab paste is delicious in general can be eaten, but because of its cholesterol content is comparable to eggs, so coronary heart disease, hypertension, arteriosclerosis, hyperlipidemia patients should eat less or not eat crab, crab paste.

Epidemiological surveys around the world have confirmed that dietary intake of cholesterol and saturated fatty acids is too high, which will increase the level of cholesterol and triglycerides in the blood, and as a result, enhance the chances of developing cardiovascular disease and diabetes.