Drinking beer while breastfeeding can have adverse effects on the development of the infant’s liver, kidneys, and nervous system, so it is not recommended to drink beer while breastfeeding. Although the alcohol content in beer is not high, it may still enter into the baby’s body through breast milk, affecting the development of the baby’s liver, kidneys and nervous system, and may affect the function of these organs. It is very detrimental to the health of the infant, and it is best not to consume any food containing alcohol during breastfeeding. During breastfeeding many of the substances that enter a woman’s body are able to be metabolized through breast milk, so you should be careful not to smoke, drink alcohol, drink coffee and so on, and you should have a healthy lifestyle. In addition, it is important to eat a lot of nutritious food during breastfeeding to ensure that the milk is nutritious.