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Why is my picky dog eating cat food and having hard, ball-like poop?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | spayed | 2 years and 1 month old | 26 lbs

Thank you Dr. Melanie. However , Luna does not have diarrhea. the . poo is hard and balls. Also, Luna is very picky when it comes to eating. We put her bowl of food and she just looks at it and sometimes eats right away. Other times she just sits there. However, we have a problem with her eating our cats food no problem. Believe me I have tried all kinds of dry food even small bites. Frustrating

1 Answer

Most Helpful Answer

Dr. Melanie, BVSc MS

Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on February 3rd, 2019

Thanks for more information! I can see how this is frustrating to you. Ha ha cat food is quite tasty to dogs, it's higher in fat due to the fact cats are obligate carnivores. The problem with her pooing in the house could be medical or behavioral. The first step is to have her see a vet to rule out any medical issues. If none are found, the vet can discuss behavioral steps to take with her to stop this problem. Have her seen by a vet on Monday.

When dogs are picky, sometimes you have to get tough with them. Put her food down in the morning and leave it for 15-20 minutes. After that time, pick it up even if she hasn't eaten. This next part is very important: do NOT give her any food until dinner time. No human food, treats, and put the cat food up where she can't get it. At dinner time, put her food down for the 15-20 minutes, again taking it away after that time. No more food until breakfast. This is teaching her she has to eat when given food, or she gets nothing else. She will get hungry enough to eat. I hope this helps!
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