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Purina

Purina Pro Plan Veterinary Diets HA Hydrolyzed Protein Dog Food Dry Vegetarian Formula

  • Veterinary Diet
4.4/ 5 on Amazon221Amazon ratings400+bought last month2.7ProductDome score
Limited evidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology
Best forYour vet has recommended a hydrolyzed protein, or HA, diet for food sensitivity management.

A hydrolyzed-protein, vegetarian veterinary diet in a large 25 pound bag, best purchased on a vet's recommendation given the limited listing detail.

View current price on Amazon →

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ProductDome scorecard

How it ranks among the 50 veterinary diets we track

2.7/ 5ProductDome scoreLimited evidence
Owner satisfaction · 56% of scorecategory median 4.6★4.4

4.4★ across 221 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 291 ratings2.9

221 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score3.5

400+ bought on Amazon last month.

Data quality · 11% of score2.5

Brand identity, imagery, description and spec coverage.

The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 50 veterinary diets we track - how the scorecard works · full veterinary diets data report. Confidence: limited - incomplete product information.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

A dry veterinary-diet dog food built around hydrolyzed protein in a vegetarian formula, sold in a 25 pound bag under Purina's Pro Plan Veterinary Diets HA line.

Hydrolyzed protein diets are typically used to manage food sensitivities and allergies, since breaking protein into smaller fragments can reduce the immune response that triggers reactions, but the listing itself supplies no further detail beyond the title, so specific indications and feeding guidance are not confirmed here.

  • 25 lb bag, dry kibble
  • Hydrolyzed protein (HA) formula
  • Vegetarian recipe
  • Veterinary diet line from Purina Pro Plan

Who it's for

Dog owners whose vet has prescribed a hydrolyzed protein diet for suspected food allergies or sensitivities. Not for owners without a veterinary reason for a hypoallergenic formula.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out
  • Hydrolyzed protein formula aimed at sensitivity management
  • Large 25 lb bag reduces reorder frequency
What to check first
  • No seller description or spec detail provided
  • Best used with a veterinary diagnosis, not chosen independently

Performance notes

Hydrolyzing protein breaks it into fragments too small for the immune system to typically recognize as an allergen, the mechanism vets rely on for HA diets, though this listing does not provide the ingredient list or specific allergy indications behind this bag.

Specifications

BrandPurina
Model00038100172549

How it compares

This product against the closest alternatives we track in veterinary diets.

ProductAmazon ratingRatingsProductDome score
Purina Pro Plan Veterinary Diets HA Hydrolyzed Protein Dog Food Dry Vegetarian FormulaThis product4.4 / 52212.7 / 5
Hill's Prescription Diet c/d Multicare Urinary Care Dry Dog FoodHill's4.7 / 52,2004.4 / 5
Pro Plan Veterinary Diets Purina UR Urinary Ox/St Canine Formula Dog Food Dry KibblePro Plan Veterinary Diets4.6 / 54534.1 / 5
Royal Canin Veterinary Diet Canine Hepatic Adult Dry Dog FoodROYAL4.7 / 55384.1 / 5
Blue Buffalo Natural Veterinary Diet KS Kidney Support Dry Dog FoodBlue4.2 / 54133.8 / 5
Frequently asked

Questions about the Purina 00038100172549

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

What is a hydrolyzed protein diet used for?

These diets are typically used to manage food sensitivities by breaking protein into fragments less likely to trigger an immune reaction, though specific use should follow a vet's guidance.

What size bag is this?

A 25 pound bag.

Is this a vegetarian formula?

Yes, the title specifies a vegetarian formula.