#asktheexpert from the past two days, my 5 months old baby passed green and black color stools. Kindly help

A. Both breastfed and formula-fed babies produce these black stools at first. One of the most common times for a baby to have green stool is when meconium transitions to regular baby stool. As the stool goes from black to yellow, there are often some dark green stools for a day or two. Then, the yellow poop stage arrives.