My 3-week-old kitten has orange diarrhea from KMR. What should I do?
Updated On September 23rd, 2025
Pet's info: Cat | Domestic Shorthair | Male | unneutered | 0.9 lbs
I have a abandoned 3 week old kitten. I was feeding him KMR liquid. But he started having orangish diarrhea. I started mixing 1/3 parts of Pedialyte with it, but no change. Today I started him on goat milk. Is there anything else I should do? He is very alert. No signs of dehydration. About 9 ozs. Weight gain is slow, but I'm attributing this to the diarrhea. Any suggestions would be greatly appreciated.
4 Answers
Most Helpful Answer
Published on August 13th, 2018
Hi, thanks for using Petco Pet Education Center, formerly Petcoach! Kitten formula is very hard on the GI tract. I recommend weaning bottle fed babies at 3 weeks slowly over 1-2 weeks. I would get a different brand of formula and mix it 50/50 with the old one. Add more water to it. Start mixing the formula with canned kitten food and get him weaned off formula in the next week or so. He should also be dewormed as well. Good luck!
1Pet Parents found this answer helpful
Related Answers from Veterinarians
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Published on April 1st, 2018
Hi, thanks for using Petco Pet Education Center, formerly Petcoach! Kitten formulas can cause diarrhea and constipation. I would switch brands of formula and/or mix 2 different brands together to get the ideal stool consistency. I would also start weaning at 3 weeks of age to get them off formula to avoid further stool problems! I hope this helps and I wish you the best!
1Pet Parents found this answer helpful
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Published on May 6th, 2019
If you are using powdered KMR you could try adding a little extra water when mixing the formula - this can sometimes help. Make sure you increase the volume you’re feeding accordingly. A probiotic can help too - ask your vet if they think a probiotic would be okay for your kitten.
1Pet Parents found this answer helpful
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Published on November 15th, 2017
Hi, thanks for using Petco Pet Education Center, formerly Petcoach! Poor kittens! The kitten formulas can cause diarrhea or constipation. I recommend buying a different brand and mixing it with the KMR. If the bloody diarrhea continues with Sansa I would take her to a vet for an exam, they may want to start antibiotics. With bottle fed kittens I recommend starting to wean on to canned kitten food at 3 weeks of age to avoid the diarrhea/constipation side effects of kitten formula. I hope this helps and I wish you and the kittens the best!
1Pet Parents found this answer helpful
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