If you eat crab while breastfeeding, it is best to breastfeed after 48 hours because crab is a cold food, especially crab legs are cold food, once you eat crab while breastfeeding, it may cause diarrhea to the baby when breastfeeding, so it is recommended that breastfeeding be given after 48 hours. You should pay special attention to the diet during breastfeeding, some cold foods are best not to eat. In addition, if you take medication during breastfeeding, it is best to give it under the guidance of a doctor, because some medications can be absorbed by the baby through breast milk excretion, which may have a corresponding effect on the baby’s growth and development, so special attention should be paid. In addition, it is best not to eat seafood during breastfeeding, because they are cold foods.