Crab nutritious, mainly crab paste, but it is also the highest cholesterol levels, there are hidden dangers to human health. Per 100 grams of crab cream contains 466 milligrams of cholesterol per 100 grams of crab meat contains cholesterol 65 mg. Worldwide epidemiological surveys have confirmed that dietary cholesterol and saturated fatty acid intake is too high, blood cholesterol and triglyceride levels increase, the results improve cardiovascular disease risk, diabetes. Recommended human daily intake of cholesterol should be below 300 mg. In this perspective, the cholesterol content of crabs have exceeded the daily recommended intake, be sure to expand their control. We recommend that no more than one week to eat 2-3 times a crab, if ate 2-3 crab, crab required, then the next week interval. Hyperlipidemia, hypertension, cardiovascular disease, obese people, to extend their frequency should be reduced, it is best to selectively eat crabs, eat or not eat crab crab paste. In order to avoid excessive intake of fat and cholesterol, it is recommended should reduce other crab meat, offal, eggs intake, eat more fruits and vegetables, low-fat and cholesterol absorption, the Yangcheng Lake crab promote metabolism.