Hi Heather, anytime I've changed my pups food I've slowly increased the amount of the new food over about a weeks time till all they have is the new food. I watch their stools closely and see if everythings coming out OK, (smile). If she's not having any diarhea or constipation then there should be no problem. Your switch will be a little bit trickier since she doesn't like the old food and loves the new. Just watch her potty habits for any changes. Good luck. Hope this helps.
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