You can eat crabs during pregnancy, but in moderation. Crab is delicious and contains protein, fat, folic acid, calcium, potassium, phosphorus, magnesium, sodium and other nutrients, moderate consumption can supplement the body’s need for a variety of nutrients, of which protein is the main nutrient for tissue formation and growth, calcium is the main component of human bones and teeth. However, crabs should not be consumed in excess, so as not to cause gastrointestinal discomfort, and even cause abdominal pain, diarrhea and other symptoms. And those who are allergic to crabs should not consume them. During the preparation period, we should pay attention to the nutritional balance of the diet, coarse and fine grains, meat and vegetables with reasonable. Regular work and rest, keep a happy mood. In addition, the need to take folic acid tablets under the guidance of a specialist, can prevent fetal neural tube malformation.