Milk has the effect of reducing milk and does not have the effect of returning milk, because milk itself is very rich in nutritional value, contains essential amino acids, contains protein, and contains trace elements. If a breastfeeding woman drinks milk regularly, the production of milk will increase and the quality of milk will be improved. It is recommended to enhance nutrition during breastfeeding, and there are some foods that need to be avoided, such as cold foods that can cause diarrhea in babies if they eat too much. In addition, there are some foods that are not recommended for returning milk, like leeks and celery have the effect of returning, so you should give attention to them in your diet. In addition, some people may experience diarrhea when drinking milk during breastfeeding, usually due to allergy to protein, it is recommended to boil the milk before drinking to avoid this phenomenon.