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Hill's Prescription Diet z/d Skin & Food Sensitivities Hydrolyzed Chicken Flavor Dry Cat Food Purina Pro Plan Veterinary Diets HA Hydrolyzed Feline Formula Dry Cat Food

Compare ingredients, guaranteed analysis, and AAFCO nutritional adequacy, side by side.

Hill's Prescription Diet z/d Skin & Food Sensitivities Hydrolyzed Chicken Flavor Dry Cat Food and Purina Pro Plan Veterinary Diets HA Hydrolyzed Feline Formula Dry Cat Food compared

Nutrients:
As Fed
Hill's Prescription Diet z/d Skin & Food Sensitivities Hydrolyzed Chicken Flavor Dry Cat Food
Hill's Prescription Diet z/d Skin & Food Sensitivities Hydrolyzed Chicken Flavor Dry Cat Food

Verified Sep 16, 2026

Purina Pro Plan Veterinary Diets HA Hydrolyzed Feline Formula Dry Cat Food
Purina Pro Plan Veterinary Diets HA Hydrolyzed Feline Formula Dry Cat Food

Verified Jul 25, 2026

KibbleLab score The KibbleLab expert rating, 0 to 10, based on published veterinary science.
Not listed Not listed
Guaranteed analysis (as fed)
Protein Guaranteed analysis gives label minimums and maximums, not measured values, shown as fed.
Not listed 31.00%
Fat Not listed 9.00%
Fiber 1.40% 4.00%
Calcium 0.75% 1.00%
Phosphorus 0.59% 0.80%
Omega-3 0.94% Not listed
Omega-6 4.44% Not listed
Taurine 0.36% Not listed
Moisture Higher moisture means a wetter food; it dilutes the other percentages above.
Not listed 10.00%
Calories 3847 kcal/kg 3428 kcal/kg
Calorie density Moderate Moderate
Ingredients
Full ingredient list Every ingredient on each label, in order of weight.
Brewers Rice, Hydrolyzed Chicken Liver, Rice Protein Concentrate, Soybean Oil, Chicken Liver Flavor, Coconut Oil, Ground Pecan Shells, Calcium Carbonate, Lactic Acid, Potassium Chloride, Fish Oil, Glyceryl Monostearate, Flaxseed, Dried Beet Pulp, Dried Citrus Pulp, L-Lysine, Calcium Sulfate, L-Threonine, Dicalcium Phosphate, Choline Chloride, DL-Methionine, Pressed Cranberries, vitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (source of Vitamin C), Niacin Supplement, Thiamine Mononitrate, Vitamin A Supplement, Calcium Pantothenate, Riboflavin Supplement, Biotin, Vitamin B12 Supplement, Pyridoxine Hydrochloride, Folic Acid, Vitamin D3 Supplement), Taurine, Cysteine, Iodized Salt, Potassium Citrate, minerals (Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Manganous Oxide, Calcium Iodate, Sodium Selenite), L-Tryptophan, Mixed Tocopherols for freshness, Natural Flavors, Beta-Carotene. Show full list
Rice starch, hydrolyzed soy protein isolate, partially hydrogenated canola oil preserved with TBHQ, hydrolyzed chicken liver, calcium sulfate, powdered cellulose, hydrolyzed chicken, corn oil, tricalcium phosphate, fish oil, L-Lysine monohydrochloride, sodium bisulfate, potassium chloride, choline chloride, phosphoric acid, DL-Methionine, salt, guar gum, taurine, Vitamin E supplement, magnesium oxide, zinc sulfate, ferrous sulfate, niacin (Vitamin B-3), manganese sulfate, Vitamin A supplement, calcium pantothenate (Vitamin B-5), thiamine mononitrate (Vitamin B-1), copper sulfate, riboflavin supplement (Vitamin B-2), Vitamin B-12 supplement, pyridoxine hydrochloride (Vitamin B-6), folic acid (Vitamin B-9), Vitamin D-3 supplement, calcium iodate, biotin (Vitamin B-7), menadione sodium bisulfite complex (Vitamin K), sodium selenite. Show full list
Limited ingredient No No
Marketed benefits Digestive health, Itch relief, Allergy support Allergy support, Digestive health, Urinary care
Format & suitability
Food type Dry Dry
Texture Kibble Kibble
Processing Not listed Not listed
Life stage Adult Kitten, Adult
Breed size All Breed Sizes All Breed Sizes
AAFCO nutritional adequacy
Complete & balanced Whether the manufacturer's label claims the food meets AAFCO nutrient profiles for a life stage. Not an independent test.
Yes Yes
Life stages Adult Maintenance Growth (puppy/kitten), Adult Maintenance
Substantiation How adequacy was established. Feeding trials are the higher bar; formulation means the recipe is calculated to meet the profile.
Feeding Trials Formulation
Maker standards
WSAVA guidelines The World Small Animal Veterinary Association publishes criteria for evaluating a manufacturer: qualified nutritionists on staff, feeding trials, and published research. It does not certify or endorse brands.
Yes Yes
PSC accredited The Pet Sustainability Coalition is a nonprofit that accredits pet companies on their environmental and social impact through third-party verification. It reflects sustainability practices, not food quality.
Yes No
Recalls & where to buy
Recalls on record We track the FDA's animal food recall listings back to January 2019 and publish every pet food recall automatically. A filing that isn't pet food may not appear here.
None None
Where to buy
Shop Chewy Amazon
Shop Chewy Amazon

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Shared ingredients

Both foods list these among their top ingredients, by label weight.

  • Hydrolyzed Chicken Liver

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Common Questions

Do these two foods share ingredients?

Yes. They share these top ingredients: Hydrolyzed Chicken Liver.

Are both foods AAFCO complete and balanced?

Yes, both foods are labeled AAFCO complete and balanced.

See the full profiles: Hill's Prescription Diet z/d Skin & Food Sensitivities Hydrolyzed Chicken Flavor Dry Cat Food and Purina Pro Plan Veterinary Diets HA Hydrolyzed Feline Formula Dry Cat Food .

KibbleLab provides informational content only. This is not veterinary advice. Always consult a qualified veterinarian before changing your pet's diet.

This is a neutral, factual comparison, not a ranking or an endorsement of either product. A food's guaranteed analysis gives legal minimums and maximums for a few nutrients, not measured values. No one can pay for placement or a higher score.

Product details are compiled from public sources and may not reflect the latest formulation. Represent one of these brands? Request a correction. Anyone else can email us.