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Why is my cat's stool soft after starting Tumil-K supplement?

Updated on September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Male | neutered | 18 years and 1 month old | 9.5 lbs

Hi tony started taking potassium supplement tumil-k on feb 2nd. Could this supplement cause upset stomach? I ask because day before yesterday I noticed a change in his “number 2” schedule, (at night instead of his Always morning schedule) & the tip of the stool was a bit soft. he’s eating good but I did have to follow him with his food bowl to finish today, and I never have to do that

1 Answer

Most Helpful Answer

Laura Johnson VMD

Answered By Laura Johnson VMD

Veterinarian

Published on February 8th, 2018

Hi, thanks for using Petco Pet Education Center, formerly Petcoach!

Any medication can cause an upset tummy. Personally I haven't had a cat develop diarrhea from it. I wonder if Tony's loose stool and decrease appetite has more to do with the underling illness is causing the low potassium in the first place.

I would call your Vet and tell them what is going on with Tony in case they want to modify the plan.

I hope this helps!
Vote Icon1Pet Parents found this answer helpful

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