HILL'S PRESCRIPTION DIET z/d Skin/Food Sensitivities Original Flavor Dry Cat Food, 8.5-lb bag - Chewy.com

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

By Hill's Prescription Diet
Rated 4.3717 out of 5 stars
Veterinary Diet Item

$78.99Chewy Price
$75.04Autoship Price
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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

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.
Shop Hill's Prescription Diet

Questions & Answers

26 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.

How by cups are in the 8.5 lb bag?
Answer by ChewyFeb 10, 2019
There are approximately 20 cups in the 4-pound bag and 42.5 cups in the 8.5-pound bag.

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.

ReviewsWrite a Review

Rated 4.3717 out of 5 stars
565 Reviews
Would recommend to a friend

565 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 Lisa on Mar 8, 2023

My Chewy Order

I gave Chewy 5 stars because of their service. I recently had to put my kitty down. In her last days she wanted her crunchy cat food. We ran out and she was beside herself. I hurried and ordered the food & it was there a day later. Silver went to the rainbow bridge a week later. Thank you Chewy for all her needs.

Rated 5 out of 5 stars
By 4CatLady on Mar 4, 2023

z/d cat food

This cat food has made all the difference in my 13 year old Shaggy! Her poop has firmed up and she doesn't need her bottom cleaned as often. She is quite stout (try obese) and can't clean herself. Hopefully she is losing some weight too. Only downside is the hefty price, but it's worth it to see her acting so much better!

Rated 5 out of 5 stars
By Avey on Jan 3, 2023

Awesome solution!

Had 2 of my elderly cats beginning to have issues digesting the dry food they have been on since there were kittens; began throwing up their food for 2 or 3 days, finally took to the vet; did full bloodwork, xrays, etc., everything came out fine; he suspected it was something along the nature of IBS and he recommended this food, instructed me to change them immediately due to the constant vomiting. This is prescription and expensive, but within 3 days, all that was gone! Better than continuing vet bills if I didn't change their food! I couldn't believe it!! Most important is always take your pet to be examined by your vet to eliminate any serious illness.

Rated 2 out of 5 stars
By Yher046 on Mar 2, 2023

Did not help my cat

We were prescribed this for my cat's nonstop dirreahea. Although he was eating it, I started seeing blood in his stool so we stopped feeding him the food. 2-stars because he did eat it but did nothing for my cats digestion.

Rated 5 out of 5 stars
By RowdysMom on Feb 4, 2023

She ate it!

My girl was just diagnosed with an irritated intestine and was recommended to transition to a hydrogelized food...not so easy to find in stock and not necessarily very tasty. After trial an error, this Hill's Science Diet product was not only in stock but a flavor profile that my girl will eat.

Rated 1 out of 5 stars
By char on Feb 4, 2023

not a solution for my cat

I wish they could make it more appealing. I have three cats. One of them has inflammatory bowel disease. She was prescribed this food. I have tried it in both wet and dry. She will not eat it at all. Even the other two cats, who will eat pretty much anything, won’t touch it.

Rated 5 out of 5 stars
By Deb10 on Mar 11, 2023

Prescription Science Diet -Cat

We were given a Rx for this cat food and we have seen an improvement in our sweet cats health . Chewy was able to get this out to us in just a few days!!

Rated 5 out of 5 stars
By Patti on Dec 15, 2022

Life saving food

This ZD food saved the life of my cat! Grayson has a condition that keeps him from taking the nutrients from the protein in regular food. When I adopted him, he was a mere 5 lbs. His own body was literally starving itself! Thanks to this ZD food, and the treatment of my vet, he is now a happy, healthy, 11 lb kitty! I recommend Hills ZD food to any pet who needs it!

Rated 3 out of 5 stars
By linda on Jan 30, 2023

Doesn't work

No way our cat would eat this. Had a friend who's cat is on Hill's also and she wont' eat it. Not a definite fix for cat sensitivities. Went back to Purina Pro.

Rated 5 out of 5 stars
By Nikki on Jan 4, 2023

Great food for a sensitive stomach

This food has been life changing for my cat that could not stop throwing up almost everyday after she ate. It is more expensive then the other foods we tried but definitely worth it.