On June 25, Samson had loose stool and messed on the floor. For the next five weeks, Samson continued to have loose stools. When taken off of Ol’Roy and given rice, stools would improve. The veterinarian placed Samson on metronidazole and propectalin and continued the rice meals. Stools improved within the week. Samson was slowly started again on Ol’Roy. As soon as Ol’Roy was re-introduced, the loose stools would begin. Also, we began to notice Abby having loose stools. I threw away the Ol’Roy, cleaned the food container, and bought and new bag of Ol’Roy but the loose stools continued. That’s when I noticed the bag read “Improved Formula”. We switched to Purina and stools immediately improved with both dogs. We suspect that a change in the Ol’Roy recipe caused the gastrointestinal issues.