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My dog is always hungry and overweight. What's the medical cause?

Updated On September 23rd, 2025

Pet's info: Dog | Boston Terrier | Female | spayed | 8 years and 3 months old | 27 lbs

I have a strange question; is it possible for a dog to have the eating disorder that few people have that they eat but never feel full? My dog will whine an hour after her dinner and lay by the treat table! If she’s not doing that, she’s eating anything on the floor or out back on the gtound. She’s making me crazy and she’s already overweight so I put her on special food but she’s not losing weight? Why does she feel hungry all the time? She has been checked for worms or parasites, and she’s ok?

1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on March 10th, 2018

I believe the disorder you are referencing in people is Prader–Willi syndrome, which is a genetic disorder where a person will constantly feel hungry no matter how much they eat. There are also other effects of the disease on that person such as behavioral problems and intellectual disabilities. As far as I'm aware, it does not occur in dogs. It's good that Fionna has been checked for worms, but there are other medical causes that can lead a dog to always be hungry such as diabetes, conditions causing malabsorption of nutrients, and Cushing's disease. I recommend having Fionna seen by a vet again this week for further tests such as a geriatric blood panel and urinalysis. Depending on the results of those tests, the vets may want to do further testing to definitively diagnose if she does have a medical condition causing her constant hunger. If one is found, the vet can discuss treatment options with you. I hope this helps!

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