US
Hill's

Hill's Prescription Diet z/d Skin/Food Sensitivities Dry Dog Food

  • Veterinary Diet
4.7/ 5 on Amazon1,600Amazon ratings200+bought last month2.7ProductDome score
  • Better rated than 72%
  • More reviewed than 90%
Limited evidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology
Best forYou want the z/d hydrolyzed formula in a smaller, easier-to-store bag.

The same targeted hydrolyzed protein diet as the larger bag, just in a size better suited to smaller dogs or households wanting less bulk in storage.

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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★4.7

4.7★ across 1,600 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 291 ratings4.0

1,600 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score3.1

200+ 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

This is the 17.6 lb bag of Hill's Prescription Diet z/d, the same hydrolyzed chicken protein formula for dogs with food sensitivities and skin issues, sized smaller than the 25 lb bag.

Since this listing carried no separate spec data, treat it as the mid-size option in Hill's z/d line, useful for households that don't want to commit to the 25 lb bag or that feed a smaller dog with lower daily intake. The hydrolyzed protein approach is the same mechanism across all z/d bag sizes: breaking chicken protein into fragments the immune system won't flag as an allergen.

  • 17.6 lb bag size
  • Hydrolyzed chicken protein formula
  • Formulated for food sensitivities and skin issues
  • Part of Hill's Prescription Diet line

Who it's for

Works for dogs on a vet-recommended hydrolyzed protein diet where a smaller bag fits storage space or feeding volume better than the 25 lb option. Skip it if your dog has no diagnosed food sensitivity.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out
  • Same hydrolyzed protein formula as the larger bag
  • Smaller 17.6 lb size for easier storage
  • Targets food sensitivities and skin issues
What to check first
  • No separate spec or ingredient data listed for this size
  • Best used under veterinary guidance rather than as a general diet

Performance notes

As a hydrolyzed protein diet, the mechanism is unchanged from the larger bag: fragmented chicken protein aimed at avoiding a food sensitivity response while supporting skin and coat health. No additional spec data came through in this listing to differentiate it further from the 25 lb version beyond bag size.

Specifications

BrandHill's
Model8676

How it compares

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

ProductAmazon ratingRatingsProductDome score
Hill's Prescription Diet z/d Skin/Food Sensitivities Dry Dog FoodThis product4.7 / 51,6002.7 / 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
Purina Pro Plan Veterinary Diets HA Hydrolyzed Protein Dog Food Dry Vegetarian FormulaPurina4.4 / 52214.0 / 5
Blue Buffalo Natural Veterinary Diet W+U Weight Management + Urinary Care Dry Dog FoodBlue4.6 / 51793.9 / 5
Frequently asked

Questions about the Hill's 8676

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

How is this different from the 25 lb Hill's z/d bag?

Same hydrolyzed chicken protein formula, just packaged in a smaller 17.6 lb bag.

Does the 17.6 lb bag need a vet's recommendation like the larger size?

Yes, it's the same Prescription Diet formula, intended for dogs with a diagnosed food sensitivity or skin issue.

Is this a good size for a smaller household or dog?

It's a more manageable size than the 25 lb bag for lower daily feeding volume.