Baby’s tummy is not directly related to what the breastfeeding mother eats. Baby’s tummy is a phenomenon in which the baby does not pass stools for 3-5 days or even longer. Although the baby does not pass stools, the baby does not have any discomfort and the baby is able to eat, sleep and play normally. When the baby passes stools, the stools do not appear abnormal. The main reason for the baby’s tummy is that as the baby’s age increases, the digestive system of the baby’s digestive and absorptive functions are perfected, and the baby is able to digest and absorb all the milk that he or she ingests. Breastmilk contains very little food residue, forming very little feces, which does not stimulate the bowel to produce a bowel reflex, so the phenomenon of tummy saving occurs.