first of all, it is certain that crabs don't return milk. But it should be noted that crab is a cold food. Mothers during pregnancy and lactation should not eat crabs. They can eat some foods with high protein content, such as carp eggs and milk. Eating more vegetables and fruits with high vitamin content is good for your health. If there is little milk, you can use some medicine to milk it. Be sure not to eat too much seafood. Cold crabs have the effects of clearing away heat and removing blood stasis, reducing swelling and detoxifying, but they have no effect of feeding. In addition, crabs are rich in protein, which can even provide nutrition for maternal breastfeeding. But eat as little as possible and don't eat too much during lactation. Eat lean eggs, pure milk, soup, sparerib soup, chicken soup and fish soup during lactation. All these can promote lactation.