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Question:

Should we switch from an HP to EL diet?

I’m really struggling here and could use some advice from more experienced pet parents. We’ve been feeding our dog, Max, a high-protein (HP) diet for the last year because we thought it would support his active lifestyle. He’s a crazy ball of energy, always bouncing around, and the vet initially recommended it. But recently, he’s been having these awful digestion issues—loose stools, bloating, just not his happy self. We’ve done all the tests, and there’s nothing serious, but the vet now suggests we might want to consider switching him to an elimination (EL) diet to see if it’s a specific protein that's causing the issues. I’m overwhelmed and worried—I don’t want to upset his tummy even more by changing up his food again. Has anyone else made this switch successfully? How did your dog adjust? Any tips or advice would be so greatly appreciated!

Answer:

Hi there! It sounds like you're considering a dietary change for your pet. Changing diets, especially therapeutic ones, can be important for managing certain health conditions.

An "HP" (hydrolyzed protein) diet is typically used to help manage food allergies or sensitivities. It works by breaking down proteins into small pieces that the body is less likely to recognize as allergens. On the other hand, an "EL" (elimination) diet is generally used as a diagnostic tool to identify specific food intolerances by providing a very limited set of ingredients.

Switching diets can sometimes cause digestive upset, like vomiting or diarrhea, so it’s important to transition gradually over 7-10 days by mixing increasing amounts of the new food with the current food. Keep a close eye on your pet’s coat condition, energy levels, and stool quality during and after the switch.

Watch for any serious signs, such as persistent vomiting or diarrhea, significant weight loss, or lethargy, as these could indicate a bad reaction or unrelated health issue requiring immediate attention.

Before making a diet switch, I recommend booking a video consult with us at Dial A Vet. We can discuss your pet's unique needs and ensure the transition is both safe and beneficial. Looking forward to helping you soon!

Answered by

Louise - Senior Veterinary Nurse, Dial A Vet

June 17, 2025

  Book A Vet Consultation
The "Ask a Vet" forum on Dial A Vet offers general information and helpful tips on pet health, but it's not a substitute for professional veterinary care. The advice here doesn't create a veterinarian-client-patient relationship, and our vets can't diagnose or treat your pet remotely. For emergencies or specific medical concerns, always contact your local veterinarian immediately. Your pet's health is unique, and decisions should only be made after consulting with a qualified professional. By using this forum, you acknowledge these limitations and agree to seek in-person veterinary advice for all your pet's health needs. View our content guidelines.
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