So I've decided that I'm going to switch my 2 year old cocker/lab mix dog food from Pruina Pro Plan to Nature's Recipe. It's been about 5 or 6 days. I've noticed that her poop has gotten more runny than usually. My question is: Is this normal? I had started to switch her from Pruina Pro Plan to Healthwise but again her stools were starting to get runny and I thought that the food wasn't agreeing with her so we stopped the Healthwise and decided to try Nature's Recipe. She seems to like it so I'm not sure what's going on. Thanks everyone.