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My pug puppy has diarrhea and won't eat after new food. What to do?

Updated On September 23rd, 2025

Pet's info: Dog | Pug | Female | unspayed | 3 months and 15 days old | 3 lbs

Hi, my pug darcy has diarrhoea. We got her just over a week ago, and when we did she was eating pedigree dry food mixed in with the wet food to try and wein her onto dry food. However I read that food was not the best and so we have began switching out the pedigree dry food for royal canin pug puppy food. So what she is eating at the minute is the pedigree wet dog food wth the dry pug puppy food. However she is still having diarrhoea and also would not eat her food tonight, should we be worried

3 Answers

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on January 3rd, 2017

You are correct that Royal Canin is a better food for Darcy, and it's a good you are making the switch to it. It could be that the combination of the Pedigree and Royal Canin is causing the diarrhea, and she's not eating because of an upset stomach. I wouldn't be worried just yet, and I will give you a home remedy to try before having to take her into the vet. Withhold food for 12-24 hours, then feed a bland diet of boiled white meat chicken (no bones) and white rice in small amounts several times a day for a couple of days. Then slowly add back in her normal diet, just the Royal Canin dry only. The diarrhea could also be caused by intestinal parasites, and I would make sure she is up to date on her deworming treatments.

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Other Answers

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    Answered By Dr. Melanie, BVSc MS

    Veterinarian

    Published on April 24th, 2020

    This could be due to the change in diet. I can give you a home remedy for Shakespeare to see if that helps. Feed him a bland diet of boiled white meat chicken (no bones) and white rice in small amounts several times a day for a couple of days. Then slowly add back in his normal diet. If the diarrhea continues on the bland diet, he refuses to eat the bland diet, he starts vomiting food, stops drinking water, starts vomiting water, or becomes very lethargic, he will need to see a vet right away. I hope this helps!

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    1Pet Parents found this answer helpful

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    Answered By Dr. Melanie, BVSc MS

    Veterinarian

    Published on January 2nd, 2017

    A sudden change in diet can cause GI upset, such a diarrhea, and given the fact you are switching food and this is occurring, I would suspect that is the cause of Darcy's diarrhea. I would try a home remedy to see if that helps with the diarrhea. Withhold food for 12-24 hours, then feed a bland diet of boiled white meat chicken (no bones) and white rice in small amounts several times a day for a couple of days. Then slowly add back in her normal diet (the dry food). If the diarrhea continues on the bland diet, she starts vomiting food, stops drinking water, starts vomiting water, or becomes very lethargic, she will need to see a vet right away.

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    1Pet Parents found this answer helpful

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