Most new parents wonder how to tell if their baby is getting enough to eat .
You can measure how many ounces of formula she's getting, but a better way to gauge your baby's hunger is to watch her for cues. When she's hungry, she will root toward your breast, bringing her hands to her mouth and making sucking motions. Feed her as long as she is eager to drink. Once she starts losing interest, you can burp her and then try again. As a very general guideline, every 24 hours babies need approximately 2.5 to 2.7 ounces of formula per pound of body weight.