[kdhawks]

I agree that you have to find a food that works for your little one and that each dog is different. But in the case of my pup, if I switch his food immediately, he gets gas/diarrhea. He is so used to his "regular" food that if I switch it to another kind immediately it causes him upset. It isn't like humans who eat a different foods all day, every day. My pup eats his regular food only (an occasional treat yes, but he doesn't have variety in his meals the way a human does). So I have found it to be easier on his digestion if I switch him over slowly. I'm sure there are dogs out there that can switch easily from one food to the next - my brother's dog can, for example. But my little guy seems to have a sensitive tummy, and greatly benefits from a slow switch.