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How can I prevent my pet from getting diarrhea on new food?

Updated On September 23rd, 2025

What can you do to help prevent the animal from getting diarrhea with the new food?

1 Answer

Most Helpful Answer

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Answered By Jenna Beyer, DVM, MBA, cVMA

Veterinarian, Certified Veterinary Acupuncturist

Published on October 7th, 2017

When switching to a new food, I recommend that you mix it slowly into the old food over 2-3 weeks. So, for example, the first 5 days feed 75% old food, and 25% new food. The next 5 days feed 50/50. The next 5 days 75% new food and 25% old food. If you see nausea, vomiting, or diarrhea during any of this period, then back off and transition a little slower. If the symptoms continue, then your pet may have a dietary intolerance to the new food and it should not be used.

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