Help! My 2 month old demands milk!?

My 2 month old daughter drinks what I have been told by others , too much milk at her feedings. She usually has 4oz of formula every 2-3 hours, and if I try to prolong the period in between feedings she'll just cry and cry bloody murder. Is there anything I can do to help her get to a more healthy point? Everyone makes me feel like I'm giving her too much milk and I'm setting her up to become an unhealthy weight/obese. Besides, I thought babies kinda gauged their own appetites?