Yes, pooping green occasionally is normal. In fact, green is in the normal range of infants’ stool colors, and so are the yellow, the seedy mustard and the brown. 

The following are many of the causes associated with green stools:

- Unsuccessful breastfeeding

- Excess of milk

- Stomach bug

- Sensitivity/ allergy to a food or medication (whether consumed directly or through the mother’s diet).

That said, a green poop is nothing to be worried about as long as your little one is fine and gaining weight. Yet the variations of red, white and black are the ones you shouldn’t ignore, as they can indicate an illness or an infection that needs to be treated straightaway.