Ay, alam ko yan! Watery talaga ang popo ng babies on formula, lalo na Nestogen, mas liquid compared sa breastfed babies kaya normal lang yan, hindi dapat mag-alala. Pero kung every feed siya nag-popo or if the poop looks greenish/frothy or baby seems uncomfortable, mas better mag-check with your pedia lang para sure, dahil pwede ring overfeeding or ang formula mixture ay kailangan i-adjust according sa baby's tummy. A few of us moms sa circle namin noticed the same thing with Nestogen, kaya don't stress, pero observe lang if may signs of discomfort or diaper rash, then call the doc na.