I am in the process of transitioning off of Wellness Complete Puppy b/c my dog had nothing but loose stools on it. After hearing from lots of folks here and reading everything i could find, we are trying Pro-Plan Focus lamb and rice (it has no wheat, but it does have grain, and no legumes or potatoes). It has only been since Monday dinner, so she is still eating more than half Wellness, but the difference so far is remarkable. Nothing but formed, solid stools now, which become progressively more normal the more we add the Pro Plan. We'll see if it continues.