1. Nutritional value of crab Crab is a nutritious seafood. It is rich in protein, vitamin B2, phosphorus, iron and other nutrients, and has many benefits to the human body. Pregnant women eating crabs can help supplement nutrients and enhance the body\’s resistance. 2. How much crab can pregnant women eat? Although pregnant women can eat crab, they should pay attention to the appropriate amount. It is not advisable to consume too much each time, preferably within 200 grams. Additionally, women with allergies during pregnancy should avoid it. 3. How to choose fresh crabs It is very important to choose fresh crabs. Firstly, check whether the appearance is complete and without any damage or cracks; secondly, check whether the appearance is complete or not.