My DD is 1 month 6 days and is already up to 4 oz every three hours. It seems that the 4oz in not enough and I am finding that most of the time she is eating close to 5 oz. She is now 10lb and was big when born. Just curious does anyone else's LO who is the same age, eat this much? The doc said if she wants it give it to her. Not much help if you ask me, I think it's too much.