I have a question, well sort of. At the hospital I delivered at they put my baby girl on similac advance with iron ready to feed (which I was totally ok with). Well when I got home I switched her over to powder similac of the same kind. Well after feeding her this about a day I notiched constipation in her. Well my dad said to change her back over to the ready feed because it is homogenized and may cure the constipation. Well I tried it and she is back to normal poopys. Why would the powder stuff clog up her bowels? has anyone else had this happen? is my dad right? She is only a week and 5 days old could this have something to do with it? I just thought it was weird cause I though there was no difference in the two. I was just curious and plan to bring it up at my next pedia appt.