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How to help my senior cat lose weight safely after constipation?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Male | neutered | 10 years and 2 months old | 23 lbs

I recently took my 14 year old cat to the vet. He was fully constipated, and had to get an enema. They prescribed us Lactulose, and told me he needs to be on a diet. His labwork came back good. But they never went over a diet plan for me. I typically let him free feed on kibble all day, with wet food right before bed. The nurse suggested to feed him mostly wet food watered down, with small portion of kibble. So I have been doing that. How do I safely get him to lose weight? He has big frame.

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1 Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on February 18th, 2019

Oh my, Kitty is a very handsome boy! I love his socks on his feet, so cute. Feeding him canned food watered down is an excellent way to get him to lose weight. Canned food has lower calories than dry kibble, and the added benefit is that it will get extra moisture into his diet hopefully preventing any further occurrences of constipation. Dehydration is the number one cause of constipation in cats. Do not feed him any treats, and try to play with him at least once a day to get him moving. At his age, he certainly won't be running around like a kitten, but movement will be good for him. I hope this helps!

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