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My 4-week-old kitten has diarrhea from human milk. What to do?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Female | unspayed | 27 days old | 2 lbs

I rescued a 4-5 week old kitten and the local animal hospital said to feed her moist cat food and milk, I used the KMR formula. She was eating fine and then she slowed down so I started mixing a little 2% milk with it to help her eat better. She has started having diarrhea and I have not seen any worms in her stool. I need some advice on what to do.

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1 Answer

Most Helpful Answer

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Answered By Destini R. Holloway, DVM

Veterinarian

Published on May 28th, 2018

Kitties can't digest human milk well. This is likely what gave your little one diarrhea. I would switch back to the KMR and start mixing in small amounts of wet kitty starter formula food. You can also mix in 1-2 tsp of canned pumpkin (not the pie filling) to help harden her stools and continue feeding her kitten only food. If he stools are not getting better after 24-48 hrs then its best to take her to your vet for a short course of antibiotics to get her bacterial flora back to normal. I hope that your ktity feels better soon! Best wishes and take care!

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