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Why is my healthy, active dog not gaining weight? Ribs are showing.

Updated On September 23rd, 2025

Pet's info: Dog | German Shepherd | Male | neutered | 2 years and 11 months old | 44 lbs

Hi. My GSD who's 3 years old is not gaining weight at all. Today I noticed that Il can see his ribs. I've always used the best quality foods. I thought it could be EPI, but he's showing no symptoms at all. He's playful, exercises, no problem eating and he has a normal stool. He is just as energetic as normal. He was the runt of the litter though after a 12 hour labour period. He was very small compared to the others. I don't what to do. Please advise what the possible issues could be? Thank you

1 Answer

Most Helpful Answer

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Answered By Rebecca, DVM

Veterinarian

Published on September 22nd, 2017

Be sure that Enzo is on a high quality dog food, he may require a food for performance dogs or active dogs. Some dogs just have higher metabolism. I would also recommend having him checked and assessed for parasites as Paris citizen can certainly cause a dog to lose weight or prevent them from gaining enough weight. You may want to discuss running other bloodwork or diagnostic testing with Enzo’s veterinarian. Or see if they have any recommendations for diet changes that may help him put weight on. Good luck thank you for using Petco Pet Education Center, formerly Petcoach

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