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My cat has CKD. Do they need extra Vitamin B? Is it safe to give?

Updated On September 23rd, 2025

Pet's info: Cat | Korat | Male | neutered | 14 years and 3 months old | 9.6 lbs

Hello, I understand that cats with CKD can be suffer from vitamin B deficiency. If vitamin B is water soluble, does it mean there would be no adverse effects in adding extra vitamin B to diet? Similar to taurine? Thank you.

1 Answer

Most Helpful Answer

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Answered By Jenna Beyer, DVM, MBA, cVMA

Veterinarian, Certified Veterinary Acupuncturist

Published on April 29th, 2019

I don’t typically worry about Vitamin B deficiency in cats with CKD. It is common in cats with GI disease or diarrhea. B vitamins are safe in appropriate amounts, but I would recommend that you consult with your vet about any supplements. The kidneys are responsible for excreting excess b vitamins, and if they are severely impaired, there could be negative side effects.

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