Hill's Prescription Diet z/d Skin/Food Sensitivities Original Flavor Dry Cat Food

By Hill's Prescription Diet
Rated 4.366 out of 5 stars
Veterinary Diet Item


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About This Item


  • Clinical nutrition especially formulated to help manage your cat's dietary sensitivity and help reduce the possibility of adverse reactions to food
  • Designed to improve digestion and stool quality with ingredients to help reduce gastrointestinal workload
  • Helps eliminate food related causes of skin irritation and a healthy skin barrier
  • Formulated with highly digestible proteins that minimize the chances of adverse reactions to food
  • Clinically proven antioxidants help maintain a healthy immune system and skin barrier function

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Nutritional Information

Feeding Instructions


Play Video: Learn More About Hill's Prescription Diet From Our Team of Experts
Learn More About Hill's Prescription Diet From Our Team of Experts

Frequently Bought Together

This Item – Hill's Prescription Diet z/d Skin/Food Sensitivities Original Flavor Dry Cat Food, 4-lb bag
Rated 4.366 out of 5 stars
$39.99Chewy Price

Spend $100, Get a $15 eGift Card

Hill's Prescription Diet z/d Skin/Food Sensitivities Original Flavor Wet Cat Food, 5.5-oz, case of 24
Rated 3.3723 out of 5 stars
$91.99Chewy Price

Spend $100, Get a $15 eGift Card

Total Price: $162.97

About Hill's Prescription Diet Foods for Skin / Food Sensitivities

Improving Lives Together

Groundbreaking Nutrition for Sensitive Cats

Cats with skin and coat conditions or food sensitivities can benefit from Hill's Prescription Diet d/d and z/d foods. Prescription Diet d/d has limited ingredient nutrition and a single intact animal protein. The Prescription Diet z/d food features hydrolyzed protein and a single carbohydrate source to minimize the risk of allergic reactions. Many pet parents discover that simply eating the right food can help eliminate food-related causes of skin irritation and help avoid reactions to food.

Clinical Nutrition

With Hill's, it's not just high-quality ingredients that count. Their focus is on the proper balance of nutrients in every recipe. So Hill's has developed foods that are designed to help pets with specific health conditions, providing the right nutrients to support their health. Hill's alliance with veterinarians puts them in a unique position find a nutrition recommendation for your pet no matter what health issue your pet is facing.

Formulated by Veterinarians

Hill's Prescription Diet started with a veterinarian's belief that some health issues could be managed through nutrition. What began as a theory has now been proven through extensive research by a team of over 220 vets, PhD nutritionists and food scientists. The results can be seen in Hill's Prescription Diet therapeutic pet foods.

Meeting the Highest Standards

Providing a food that delivers exactly what it says it does is Hill's number one priority, in fact, they perform over five million safety and quality checks every year. They've established relationships with trusted suppliers and will only accept ingredients that meet stringent standards.

The Taste Factor

You might know that Hill's Prescription Diet is good for your pet, but she's only concerned with the taste. Even though they place a heavy emphasis on nutrition, Hill's hasn't forgotten about palatability. Savory ingredients are combined to produce foods with enticing aromas, textures, and shapes that your pet can't resist.

Find the Right Formula

Talk to your veterinarian about the right formula for your pet.

Prescription Diet z/d Skin/Food Sensitivities

Original Flavor

Key Nutrients

  • Highly hydrolyzed single animal protein
  • Single carbohydrate source
  • High levels of vitamin E
  • Natural fiber
  • Essential fatty acids
  • Controlled minerals
  • Clinically proven antioxidants

Health Benefits

  • Promotes healthy skin barrier
  • Helps support immune system
  • Formulated to help improve stool quality
  • Helps eliminate food-related causes of skin irritation
  • Formulated to help reduce the risk of struvite and oxalate stones

d/d Skin/Food Sensitivities

Duck & Green Pea, Venison & Green Pea

Key Nutrients

  • Single intact animal protein
  • No soy protein or gluten
  • High levels of omega-3 and 6
  • Clinically proven antioxidants

Health Benefits

  • Helps improve digestion and stool quality
  • Leads to visible improvement in skin and coat
  • Helps maintain a healthy skin barrier
  • Supports immune system

About Hill's Prescription Diet

Hill's mission is to help enrich and lengthen the special relationships between people and their pet. Their Prescription Diet product line delivers clinically proven nutrition that supports common pet health concerns, from digestive and urinary health to aging and weight management.
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Top IngredientsBrewers Rice, Hydrolyzed Chicken Liver, Rice Protein Concentrate...Brewers Rice, Corn Gluten Meal, Chicken Meal...Chicken By-Product Meal, Brewers Rice, Corn Gluten Meal...Chicken, Whole Grain Corn, Corn Gluten Meal...Ocean Fish, Cracked Pearled Barley, Whole Grain Oats...
Special DietVeterinary Diet, Pea-Free, Hydrolyzed Protein, With GrainVeterinary Diet, Weight Control, Pea-Free, With GrainVeterinary Diet, Pea-Free, With GrainVeterinary Diet, Pea-Free, With GrainVeterinary Diet, With Grain
Food FlavorPoultry, ChickenPoultry, ChickenPoultry, ChickenPoultry, ChickenSeafood & Fish
Health FeatureSkin & Coat HealthDigestive Health, Weight ManagementDental & Breath CareUrinary Tract HealthUrinary Tract Health
Food FormDry FoodDry FoodDry FoodDry FoodDry Food

Questions & Answers

25 Customer Questions

Can z/d be fed to a cat with chicken allergies?
Answer by ChewyMay 01, 2018
This food does contain hydrolyzed chicken liver. Due to your pet's allergies, we encourage consulting your Veterinarian to see if this food would be safe for them.

What is the carb content?
Answer by ChewyMay 29, 2018
This formula has a Carbohydrate content of 41.7% on a dry matter basis.

where is ZD for cats dry food for skin & allergy made? What country?
Answer by ChewyDec 26, 2018
The food is made in United States.

How is this different from the d/d? Aside from the flavor and ingredients.
Answer by ChewyJun 21, 2021
The z/d is a pea-free, veterinary diet, hydrolyzed protein food and the d/d is a gluten free, grain-free, veterinary diet.

ReviewsWrite a Review

Rated 4.366 out of 5 stars
642 Ratings
Would recommend to a friend

630 Customer Reviews

Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.
Rated 5 out of 5 stars
By Cheryl on Nov 15, 2023

Truly a lifesaver

This food was a godsend when I rescued my 1yr old cat to be my companion/support fur ball. He was not doing well in the shelter & I was just dealing with my 3rd spinal surgery so we saved each other. He had hot spots all over his lower back & base of tail where he could reach. So when we went to the vet the first time we knew he probably had a serious food allergy. That was confirmed & he had issues with his pancreas, he got some antibiotic shots & the permission to be bathed to help his skin. I had switched his food to a sensitive cat special food & those spots got better, but not completely. Then I went back & we switched to this, & just like that everything got better. It was literally a flip of a switch for him making me so thankful for this food. For whatever reason he will NOT eat the wet form so I can’t really say much on that.

Rated 5 out of 5 stars
By Ashley on Nov 15, 2023

Einstein loved this

We were on Hills urinary dry food until he started becoming sick very often. His bladder stones were resolved and he hadn’t had issues in months. But his excessive throwing up caused him to go from 18lbs in January to 13.5lbs in October. Vet said switch to this and when I tell you my boy ceased throwing up - he did. Before he was throwing up all of the urinary dry food. He’s a long haired boy so naturally he has hair balls but this was more food than hairballs. We started this formula and he was instantly better within days. But now we’re in the dilemma where his stones have returned - even though I have continued to give him the urinary WET food with this sensitive dry food. I started him back on the urinary dry food like the vet said on a Friday and this boy by Monday threw up 5x and had the poops bad. This formula from Hills was wonderful for my baby Einstein. He seemed to feel much better until the devil stones came back. I’d love to keep him on this food, he enjoyed it and he’s a sensitive boy. Will have to switch back to urinary food but going to try Royal Canin instead of Hills to see if he stops getting sick. I would definitely say if you have a frequent throwing up cat - this helped our boy immediately. I’d say give it a go!

Rated 5 out of 5 stars
By Michelle on Nov 16, 2023

Two thumbs up

I tried getting prescription cat food before, and it was a nightmare. The other site needed a copy of the prescription, and then needed to call my vet to verify that prescription. A call my vet said never came. It ultimately led to us not getting the food. Now my elderly cat really needs it, and chewy made it incredibly easy. We got the food in no time, and my cat thinks these kibbles are treats so she's really happy. 10/10 would buy again

Rated 5 out of 5 stars
By Doreen on Oct 30, 2023

Hills ZD dry cat food for food & skin sensitivity

I like this food for my kitty Baby since it’s prescribed & the only food she can eat without throwing up. With other “healthy” food it was constant, the vomiting to the point where she was diagnosed with pancreatitis. She’s what you call chronic pancreatitis so this food is hers for life now. I worry that she’ll get bored of it but it’s been over a year now and she still seems to be enjoying it. Her coat is very soft & no more vomiting she appears in very good health for an almost 7 year old.

Rated 4 out of 5 stars
By Sally on Nov 4, 2023

so far so good

My cat is currently on this as an elimination diet trial for suspected food allergies. She is eating it ok, but she isn't thrilled with it. I think it's just a bland taste/smell. It is early to tell but she seems to be doing better already, which is good news. Hopefully this will help us identify the problem one way or the other. She sure misses her treats (which may be the culprit).

Rated 5 out of 5 stars
By Kimberly on Nov 20, 2023

Expensive but it works

One of my cats has digestive issues, so my vet prescribed this. It took him a couple of weeks to warm up to it, but now he loves it. Super expensive compared to other options, but it keeps him healthy and at a good weight, so it is worth it.

Rated 5 out of 5 stars
By Valerie on Nov 21, 2023

Very good for chronic vomiting!

My senior cat who had chronic hernia related vomiting issues loves this food and responded well and quickly with this food prescribed by our vet - added some warm water to the thick pate wet food. She also likes the kibble.

Rated 1 out of 5 stars
By Lorissa on Oct 26, 2023

So Much Vomit

My kitty was diagnosed with IBD so the vet recommended this food. After a couple of days of eating it the vomiting began and boy was there was barf! So. Much. Barf. For science I removed the dry food from his diet and the vomiting ceased. When I reintroduced it, two days later, the vomiting started up again.

Rated 5 out of 5 stars
By Craig on Nov 6, 2023

Improvement in Stomach Upset!

Our picky ginger loves this food. She was placed on it after having chronic issues with vomiting and nausea. This is all she eats and she’s done great since thankfully. Wish I could have her try Z/D wet but she refuses all wet food including tuna!!

Rated 4 out of 5 stars
By Cara on Oct 12, 2023

My cats like it

My cat had skin reactions to food allergies and she has done very well on this food. She seems to like it as well. I have another cat with urinary issues and this also has a urinary component, S OX shield to help prevent crystals, so it's nice that they can eat the same food without having to buy two different variations. He enjoys it as well.