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Why is my cat not eating? Could it be low potassium or Addison's?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Male | neutered | 17 years and 11 months old | 9.5 lbs

Hello can low potassium levels/Addison’s disease cause appetite issues in a cat like becoming finicky about his food? Thx and happy new year!

1 Answer

Most Helpful Answer

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Answered By Dr. Dayna, DVM, CVA

Veterinarian, Certified Veterinary Acupuncturist

Published on December 31st, 2017

Hi there, and thanks for posting this question. With Addison’s disease the potassium levels are actually high, not low. And Addison’s disease is very rare in cats as well, but yes It causes a variety of gastrointestinal problems. However, low potassium levels is commonly seen in older cats with chronic kidney disease. Chronic kidney disease eventually decreases appetite because either they are slightly nauseated and just don’t feel like eating or sometimes they become anemic and weak and don’t want to eat. I hope this answers your question and I hope Tony does well. Thank you for using Pet Coach.

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