When mack was on fromm his poops were yellow too. We switched to natural balance bc I wanted to try food that wasnt sweet potato bc I heard white potatos are totally different and he might only be allergic to sweet potatos, so I tried the LID duck and potato, its easier to find and fromm pork n peas was impossible to find in stores. The natural balance made macks poop black...anyways, we are trying the legume flavor now bc though mack improved, I felt it could be better...he has never had tear stains with any food yet, so I will be on the lookout That's interesting..I wonder what makes it yellow? and youre right Natural Balance is much easier to find. I may go back..and just watch for tear stains. His tail pocket is also always clean now since being on Fromms so Im not really sure what i want to do yet.
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