Hill's Prescription Diet z/d Low Fat is a hydrolyzed soy wet food built for dogs managing food sensitivities alongside a low fat need, and its 4.4 star rating suggests it is well tolerated, though the review count here is still small.
Dogs whose vet has recommended a hydrolyzed protein diet combined with a low fat need for food sensitivities.
Skip if
Your dog has not been diagnosed with a food sensitivity or a low fat requirement, since this is a narrowly targeted veterinary formula.
Our scorecard
4.2/5overall
Owner rating4.4/5
4.4 average across 30 owner ratings
Popularity0.5/5
30 owner reviews, fewer than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other dog food and health supplements we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
This 12-pack of 13 oz cans is built around a hydrolyzed soy recipe, combining Hill's z/d line for food sensitivities with a low fat formulation. It is meant to be used as part of a veterinary plan rather than picked as a general-purpose wet food.
At $73.99 for the case, it is priced in the mid-range for prescription wet food. It carries a 4.4 star rating, though with only 30 reviews on record, the sample size is small compared to some of the other veterinary diets in this lineup, so weigh that alongside your vet's recommendation.
Pros
Hydrolyzed soy protein formulated for dogs with food sensitivities
Low fat formulation for dogs that need reduced dietary fat
Convenient 13 oz can size for portioned wet feeding
4.4 star rating suggests reasonable tolerance among the dogs feeding on it
Cons
Only 30 reviews on record, a smaller sample than other options here
Narrow use case limited to dogs with both a fat restriction and a sensitivity diagnosis
Premium price typical of a prescription veterinary diet
Performance notes
This is a wet food sold in 13 oz cans, twelve to a case, built around a hydrolyzed soy protein source paired with a low fat formulation. The combination targets dogs who need both reduced fat and a hydrolyzed protein for sensitivity management.
What buyers say
The 4.4 star rating here is based on a smaller pool of 30 reviews, so while early feedback is positive, there is less data to draw on than with the higher-volume formulas in this lineup.
Hydrolyzed soy protein has been broken down into smaller components, which can make it less likely to trigger a food sensitivity reaction compared to intact soy or other proteins. It is typically used under veterinary guidance.
Why combine low fat with a hydrolyzed formula?
Some dogs need both reduced dietary fat and a hydrolyzed protein source at the same time, often due to a combination of digestive and sensitivity concerns. Your vet can confirm whether this dual approach fits your dog's needs.
Is the review count a concern?
With only 30 reviews, there is less feedback to draw on than with higher-volume veterinary diets. The rating is solid so far, but it is worth discussing with your vet given the more limited track record.
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