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How much psyllium husk for my 100lb dog with IBS to firm stool?

Updated On September 23rd, 2025

Pet's info: Dog | Great Dane | Male | neutered | 11 years and 11 months old | 100 lbs

Hi, I have an old dog that has been diagnosed with IBS of the large intestine. I have found that psyllium husks mixed with his kibble and warm water helps to firm up his stool. He weighs approx. 100 lbs and I'm wondering what the dosage should be for him. I've been giving him 1 tablespoon twice a day. Thanks for any information you can supply.

1 Answer

Most Helpful Answer

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Answered By Jessica Keay, DVM

Veterinarian

Published on June 16th, 2019

I am sorry to hear about your dog. We normally start dogs on 2 tablespoons a day and increase or decrease based on response, so if he seems to be doing well on 2 tablespoons then I would continue this dose.

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