Hello, Probiotics are always a good idea for dogs and people. You can find then in either tablet form or powder form that you can sprinkle on the food. You may be looking at something like Irritable bowel syndrome or even a pancreas disorder. If the probiotics do not help then I would consider having some tests done to rule out those conditions. I am sending a link to some information on probiotics and where you can purchase them. If you need anything else be sure to let me know.