Wellness is a great food but all dogs react different to different foods. For example, my older dog , Rosco. With him, Wellness is actually one of only a couple of foods that he does NOT get a soft runny stool from. Most others all seem to give him a problem. My female Smooch, can pretty much eat any kibble without a problem. You could keep trying for a little while longer and if things don't improve you may have to try the dog on something else. There are many foods that do compare to Wellness in quality. You just need to find one that your dog tolerates well. Good luck.