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Why is my puppy refusing food and having large morning bowel movements?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | spayed | 11 months and 5 days old | 10.6 lbs

My puppy has this issue where she’ll be eating perfectly fine for days and then suddenly 1morning she doesn’t want to eat has very large bowel movements in the morning. We go through this probably every other weekend. there has got to be an issue. She did have food allergies which we put her onto hyrdrolyzed protein but then she started to react negatively to that as well after doing fine on it for 2-3 months. Right now she’s on hill’s science for sensitive stomach but is now refusing to eat

1 Answer

Most Helpful Answer

Daniel Fonza, DVM

Answered By Daniel Fonza, DVM

Veterinarian

Published on January 6th, 2018

Hi there and thank you for using Petco Pet Education Center, formerly Petcoach to address your concern. I would recommend adding in a probiotic such as Purina Fortiflora, which can be found online or at your local pet store quite easily. This may be a bacteria related problem. If she continues to refuse to eat, I would recommend having her blood tested to ensure there are no systemic changes that may indicate disease or infection. I hope this helps guide you in the right direction. Please let me know if you have any other questions or concerns and I would be more than happy to help you further!
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