I called purina about 4 months ago asking what would cause my dog to get diarrhea everytime I got to the bottom of the 4 lb bag? The first time it happened I couldn't figure out why my dog got diarrhea that lasted for a day. It was the bottom of that bag so I opened up a new bag ans once again when I got to the bottom of the bag, he got diarrhea for a day...
