I switched to Wellness Just for Puppy after having fed PurinaOne (of course that was before I knew anything about dog food
). Bella pooped A LOT on Wellness for quite awhile, but then she started going a little less. She eats California Natural Puppy now (I switched for other reasons), and now she only poops 2-3 times a day. Even after a period of time she was till pooping 4-5 times a day on Wellness, so maybe that just wasn't the food for her.
I'm with Crystal....it may be time to think of changing to something else.