Medically reviewed by Natalie Muth, M.D., MPH, RDN, FAAP, FACSMMedically reviewed by Natalie Muth, M.D., MPH, RDN, FAAP, FACSM It can be hard to tell what's normal when it comes to baby poop, ...

Baby poop can vary greatly. However, a milk allergy or lactose intolerance may cause poop to be more watery and frequent than usual. Cow’s milk allergy is one of the most common food allergies in ...