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Puppy with severe food allergies: What prescription diet should I try?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | spayed | 8 months and 27 days old | 10.6 lbs

My puppy had a really bad food allergy reaction a couple of months ago she was having nonstop diarrhea. We determined it was a food allergy and she started royal Cancun’s hydrolyzed protein. Unfortunately now she’s developed an allergy to this food as well and she’s been ripping out her fur. Her diarrhea just came back this morning. No vet is willing to help me right now and I need to know what food I can give her because the poor girl is hungry. Last time boiled chicken was an issue. Help?

1 Answer

Most Helpful Answer

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Answered By Lindsey Edwards MVB, BSc, IVCA

Veterinarian

Published on October 28th, 2017

I would try hills z/d ultra or royal canin anallergenic (an even more restricted version). Ensure also she is not receiving any additional treats, flavored tablets, bones, table scraps or raiding any garbage bins. She may also require prescription medication to resolve the current flare up. A home prepared diet may be an option but would have to be formulated with the help of an expert nutritionalist and can only comprise of novel ingredients (foods she has never eaten before such as kangaroo/venison/sweet potato etc - these are very difficult to supplement sufficiently and are very expensive to maintain in the long term)

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