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Originally Posted by dwerten  I just read that beet pulp or dyes in food causes staining of mouth so make sure dog food does not have any dyes in it and that should go away- i have a maltese demi  and no staining around mouth or eyes and i use distilled and no dye in food or treats |
I feed Canidae and yorkie yummy treats, and I don't think they have any dyes....
. I also give freeze dried beef livers sometimes. It might be that mulch from the landscape that he eats staining his face....