Generally speaking, crabs and pumpkins can be eaten at the same time, which has no toxic effect. But pumpkin is rich in cobalt. It has a good effect on lowering blood pressure. Patients with hypertension should eat less crabs. So if you have high blood pressure, you'd better not eat these two foods at the same time.

Scylla serrata is a kind of food with high potassium and low sodium, and Scylla serrata is more beneficial to hypertensive patients. 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 easily digested and absorbed by human body. The content of magnesium, iron, copper, zinc, manganese and other essential elements in Scylla serrata is also high. The selenium content of various components of the blue crab is very high, especially the female gonad.

Pumpkin is rich in cobalt, ranking first among all kinds of vegetables. Cobalt can activate human metabolism, promote hematopoietic function, participate in the synthesis of vitamin B 12 in human body, and is an essential trace element for human islet cells. Vitamin C contained in pumpkin can prevent nitrate from being converted into carcinogen nitrite in digestive tract. Mannitol contained in pumpkin can reduce the harm of toxins in feces to human body. Pumpkin can eliminate the mutation of nitrosamine, a carcinogen.