MMR generally refers to the MMR vaccine, and breastfeeding moms don’t need to avoid eating after getting the MMR vaccine. MMR vaccine can prevent measles, mumps and rubella, which are three common diseases in children. Since infants and young children do not have natural immunity against measles, mumps and rubella, they can be easily infected, so they need to be vaccinated with MMR vaccine in order to prevent the above three diseases. After the MMR vaccination, the mother’s diet does not need to be avoided, and there is no clinical evidence that the mother’s diet will affect the production of antibodies by the MMR vaccine in the infant or cause adverse reactions to the MMR vaccine in infants.