Which is better breast milk or formula when newborn isn't pooping?

Breast milk: First i would consult with your pediatrician immediately if your newborn has never stooled as this may involve more than diet. Breast milk is digested more easily and breastfeeding babies tend to have looser stools. However, if your newborn poops but you feel he/she is constipated, i usually reassure parents that all babies have different stooling patterns.

Breast milk: Breast milk is better as it has natural laxative properties along w numerous other benefits that can never be replicated by formula makers.