Pregnant women without allergies can eat crabs, but it is not advisable to eat too much. Each 100g of crab contains about 95kcal of energy, 13.8g of protein and 4.7g of carbohydrates, which can provide the body with a certain amount of energy and nutritional supplements. It can also provide pregnant women with certain calcium, iron, zinc, vitamin A and other vitamins and trace elements. Crabs belong to seafood, the body is easy to residual parasites, eat too much may be unfavorable to pregnant women and fetus. Especially pregnant women who are allergic to seafood should not eat crabs. In addition, in the selection of crabs and how to eat, you also need to pay attention to the following matters: pregnant women should not eat dead crabs, do not stay overnight; should eat cooked crabs, be sure to ensure that steamed and cooked through, so as not to cause gastrointestinal discomfort or food poisoning. Pregnant women suffering from gastrointestinal diseases are advised not to eat crabs, as they have poor stomach function, and are advised to eat easily digestible food.