Again, “there's a lot of variability here,” Cilenti says. Some babies may poop more after starting solids, while others may poop less. Per the AAP, stools will usually be more solid and varied in color, thanks to foods like peas and beets. It may also have a different smell due to the added sugars and fats in their diet. Baby’s stools will continue to vary as their digestive system matures, and they may become more gassy with the introduction of solids. But, as long as “their stool is soft and easy to pass, it's usually not a concern,” Cilenti says.