Crab seafood contains purine and monophosphate, while beer is rich in vitamin B 1, a catalyst for decomposing these two components. Drinking beer while eating seafood can easily lead to a sharp increase in blood uric acid level and induce gout, resulting in gouty nephropathy and gouty arthritis.

In addition, people with chronic gastritis, duodenal ulcer, cholecystitis, cholelithiasis and active hepatitis had better not eat crabs to avoid inducing abdominal pain. The cholesterol content in crab roe is high. People suffering from coronary heart disease, hypertension, arteriosclerosis and hyperlipidemia should eat less or not, otherwise it will aggravate the development of the disease.

People with physical allergies are prone to nausea, vomiting and rashes after eating crabs, and people with poor digestive function should eat less or not eat crabs.

Extended data;

Nutrients;

Every100g of crab edible part contains protein17.5g, fat 2.8g, phosphorus182mg, calcium126mg, iron 2.8mg and abundant vitamin A and vitamin B 1.

Taking Scylla serrata as an example, the nutritional components were analyzed;

The components of Scylla serrata are rich in protein, among which the content of female gonad is as high as 30.98%, ranking the highest in fresh protein. The protein amino acids of Scylla serrata are complete, and the score of essential amino acids is 84.23 ~ 93.58.

Scylla serrata is rich in fat and unsaturated fatty acids (UFA). UFA of muscle was 74.58%, EPA was as high as 18.04%, and DHA was 13.52%.

Scylla serrata has a high content of unsaturated fat, especially omega-3 fatty acids, EPA and DHA, which cannot be synthesized in human body. EPA can obviously reduce the values of triglyceride (TG) and cholesterol (TC) in serum, prevent platelet aggregation, delay thrombosis, prevent cardiovascular and cerebrovascular diseases and prostatic hyperplasia, and DHA can promote brain development, enhance brain learning and memory ability and prevent brain aging.

Scylla serrata is a food with high k and low Na, and Scylla serrata is more beneficial to patients with hypertension. The content of Ca in its liver is extremely high, second only to stone snail, shad, dried shrimp, dried shrimp skin and clove fish, and natural organic calcium is easy to be digested and absorbed by human body. The contents of other essential elements such as Mg, Fe, Cu, Zn and Mn in Scylla serrata are also high. The selenium content of all components of the blue crab is very high, especially the female gonad.

Reference sources; People's Network-Eating crabs should not drink beer to avoid gout.

Baidu Encyclopedia-Crab