My girls have been on Purina ProPlan focus for sensitive skin & stomach since 10/18 with no problems . This winter I notice the bag was different & it now said probiotics. & it didnt say Focus. Daphne was ok with the new stuff but Bitzi my chow hound started to refuse her food no matter what I spiked it with. I called Chewy's they said it was just a new bag no difference. I also called Purina they said the same thing that Chewy's said. I told before the bag didnt say probiotics they said no it always had them. I called Purina a 2nd time, not telling them I had already called they gave me the same answer. I emailed Purina asking the to write a answer but I never heard from them. I gave them a negative review about this change & of course they didnt publish that. Bitzi is still picking at her food.