My Dobe gets loose stools from just about everything except Natural Balance, venison and brown rice. What I feed has one, single meat which is easy on dogs with allergies and sensative stomachs. However, if your dog does fine on Canidae, for example, I would recommend that over Natural Balance. It has more variety...more meat and a lot of other good ingredients that the Natural Balance doesn't have because too many ingredients, depending on what they are can upset a dog with a sensative stomach or tendency toward allergies. I feed my other dogs Canidae or Chicken Soup for the Dog Lover's Soul (I think it has four meats). There are other good premium foods too with more variety of meat, more meat and lots of suppliments but I can't get those where I live. From what I understand, a variety of meats is what you want to aim for. That's why raw feeders vary their dog's meats a lot. One meat just doesn't have everything a dog needs. One meat will have some of what a dog should have. Another meat will have something else a dog should have etc.