Babies who drink formula with high lactoferrin content may have green stools. When babies drink milk powder with high lactoferrin content, the iron content of the milk powder is so rich that babies cannot absorb all the iron in the milk powder and pass it out with their stools, thus forming green stools. Similarly, babies may also have green stools if they consume complementary foods with high iron content. Green stools are not only seen when babies consume foods with high iron content, but also physiological green stools, cold and intestinal problems, etc. Parents should pay attention to their babies’ green stools and keep a close eye on their babies’ status. If your baby has green stools for a long time or the stools are not normal, you should send them to the hospital in time to avoid delaying their condition and causing adverse consequences.