When children start on pureed food they usually stop drinking as much formula. Being that the pureed food fills them up and they aren't needing as much formula. It's normal in that aspect. However, if she's only drinking 10 oz's a day then that's not normal even with pureed food. If she has a sinus infection that might be the reasoning. Formula is a milk based product and like milk it can exacerbate the amount of mucus in the sinuses. Being that it's a thick liquid and can cause the problem to worsen.
Either way you should call her doctor and ask them their opinion.
at 9:41 AM on Apr. 6, 2011