1. What is the reason why babies poop green? 1.1 One of the reasons why babies have green poop is caused by food. For breastfed babies, if the mother eats a lot of vegetables containing chlorophyll, such as celery, celery, etc., it may cause the baby to poop green. For babies fed with milk powder, if iron is added to the milk powder, the poop may turn green. 1.2 Digestive problems In addition, digestive problems are also one of the reasons why babies have green poop. For example, if your baby digests