The Tails of Truth Podcast:

Tails of Truth: Novel vs. Hydrolyzed Protein for Itchy Dogs & Vomiting Cats

If your veterinarian has recommended a novel protein diet or a hydrolyzed protein diet for your dog or cat, this episode will make it make sense.

In this Tails of Truth episode, we explain what “novel protein” really means (duck, rabbit, venison, kangaroo, pork, and more), when we use it for cats with vomiting, diarrhea, and suspected inflammatory bowel disease (IBD), and why dogs with itchy skin and suspected food allergies often end up needing a true elimination diet trial.

We also break down the real-world challenges pet parents run into: ingredient lists that include multiple proteins, the risk of cross-contamination, why prescription diets can be helpful for diet trials, and why hydrolyzed diets (including Royal Canin Ultamino) can work even when the ingredient list looks confusing.

If your dog is itching, your cat is vomiting, or your vet said “try a novel protein” and you spiraled in the pet food aisle, this episode is your roadmap.

And, explore these related episodes: 
Itchy Dogs: The Truth Behind Scratching
What to Feed Your Cat: From Fancy Feast to Raw
Dog Food Trends and Risks: From Gently Cooked to Grain Free 
The Raw Dog Food Controversy: What You Must Know Before You Feed Raw 
Your Cat's Vomiting Isn't Normal: Let's Chat About IBD

Key Takeaways

  • novel protein diet uses a protein your pet has never eaten before.
  • A proper elimination diet trial lasts 6–8 weeks with zero outside proteins.
  • Cats with vomiting, diarrhea, or suspected IBD often benefit from novel proteins.
  • Itchy dogs with suspected food allergies may require hydrolyzed protein diets like Ultamino.
  • Prescription diets reduce cross-contamination risk during manufacturing.

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  • "If I’ve prescribed Ultamino to you, just please don’t read the ingredient deck. Just trust me." ~ Dr. Angie

  • "Food is love and it’s a rough trial." ~ Dr. Angie 

  • “But now I hear you saying you may not even be able to trust the ingredient list that’s there.”  ~ JoJo

  • "Novel just means that your cat’s likely never seen this protein before or has never eaten this protein for an extended period of time.”  ~ Dr. Angie

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