12 month old baby has loose poops. He was born at 35. 3 weeks. Perfectly healthy. His first poop is a bit formed but though out the day it s loose and mucuosy. It changes in consistency mostly dominated by loose stools. Sometimes green sometimes yellow. He s teething too. But the teeth just poked through. And this never seems to get over. He partly breastfed n mostly bottle fed. I am confused if it s related to food or teething. Doctor says he s gaining so it s fine. Some months he would gain 450 gms, and some months only 250 gms. Don t know what to believe. On an average he does 3 to 4 poops a day