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Why is my cat gaining weight despite no changes in food or exercise?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Male | neutered | 15 lbs

My 7 year old cat keeps gaining weight, even though he gets the same exact amount of dry and wet food that I've fed him for the last 2 years, and gets the same amount of exercise as the last 2 years. Why?

1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on November 13th, 2018

I'm wondering if Dude is allowed outside. If he is allowed outside, it could be he is going to other homes to get food. Outdoor cats frequently visit other homes to get additional food. If he is allowed outside, I'd keep him indoors to see if that helps with the weight gain. If he isn't allowed outside, then I'd take him into the vet as there may be a medical issue behind his weight gain. Best of luck, I hope this helps!

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