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Why is my dog sad and not eating after we adopted another dog?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | neutered | 1 year and 4 months old | 60 lbs

My dog is not eating after recently adopting a new dog. He seems depressed. Not playful. Not cudly. Hits behavior has totally changed and I'm worried.

1 Answer

Most Helpful Answer

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Answered By Ricardo Fernandez, DVM

Veterinarian, Veterinary Oncology Resident

Published on February 1st, 2018

Thanks for using Petco Pet Education Center, formerly Petcoach! This could certainly be due to the change in the household with a new pet. However, this should subside relatively quickly. If Ollie has not improved in the next 2-3 days, have him evaluated by your veterinarian for further assessment to make sure there is nothing else more concerning going on. In the meantime, you can try to entyce his appetite with things like chicken or ham. Good luck and have a great day!

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