wow yogurt, thats interesting, i might have to try that because stinkybutt can clear a room out lol. Sapphire doesn't have any dandruff is that something that bt get?? I still have sapphire on Iams, but my neighbor down the street has 3 bostons and she said i should put her back on Royal Kanine. I will see she seems to be doing ok and my vet says don't try to fix things that aren't broke lol i agree