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z/d Feline Skin/Food Sensitivities Dry Cat Food

Your Price: $57.99
You Save: $9.00

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Product ID:
  • 4-lb


  • 8.5-lb


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Food sensitivity and intolerance are potentially serious problems that can result in sensitive or irritated skin, coat and ear conditions or even gastrointestinal upset. Cats that have a food sensitivity or intolerance, also called adverse reactions to food, typically experience an abnormal response to the protein in the food. If your cat suffers from adverse reactions to food, it is even more important to feed the right food. At Hills, nutritionists and veterinarians have developed clinical nutrition especially formulated to help manage your cat's dietary sensitivity and help reduce the possibility of adverse reactions to food.

* Formulated with Hill's Hydrolyzed Protein System, highly digestible proteins that minimize the chances of adverse reactions to food
* A single, highly digestible carbohydrate source to help avoid adverse reactions to food
* Highly digestible carbohydrates and fats to help reduce gastrointestinal workload
* Increased omega 3 and 6 Fatty Acids to help nourish the skin
* Added antioxidants to help maintain a healthy immune system and skin barrier function

This food requires a veterinary prescription.
Hill's is updating their Prescription Diet® packaging and a portion of the name. With Prescription Diet® z/d®, the current descriptor is "Ultra Low Sensitivity"; in 2015 it will be "Skin/Food Sensitivities".

All Ingredients

Brewers Rice, Hydrolyzed Chicken Liver, Powdered Cellulose, Soybean Oil, Chicken Liver Flavor, Lactic Acid, Calcium Carbonate, Calcium Sulfate, L-Lysine, Glyceryl Monostearate, Potassium Chloride, DL-Methionine, L-Threonine, Choline Chloride, Taurine, vitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (source of Vitamin C), Niacin Supplement, Thiamine Mononitrate, Calcium Pantothenate, Vitamin A Supplement, Pyridoxine Hydrochloride, Biotin, Riboflavin Supplement, Vitamin B12 Supplement, Folic Acid, Vitamin D3 Supplement), Potassium Citrate, Dicalcium Phosphate, minerals (Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Manganous Oxide, Calcium Iodate, Sodium Selenite), Mixed Tocopherols for freshness, Natural Flavors, L-Tryptophan, Beta-Carotene

Customer Reviews


by PowerReviews

(based on 67 reviews)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars




of respondents would recommend this to a friend.


  • Likes it (4)
  • Easy to digest (3)
  • Nutritional (3)


No Cons

Best Uses

  • Indoor cats (4)
  • Older cats (4)
    • Reviewer Profile:
    • Long-time pet owner (5)

Most Liked Positive Review


Thank goodness for z/d!

When I got my rescue cat, I found out she had severe skin allergies and vomiting issues. She would scratch so bad that her body would have open sores. I felt so bad...Read complete review

When I got my rescue cat, I found out she had severe skin allergies and vomiting issues. She would scratch so bad that her body would have open sores. I felt so bad for her as she had to wear a collar for 6 months until we could find a food she could tolerate. At the recommendation of our vet, we tried the z/d. After a couple of months of being only on the z/d, she was finally back to being a "normal" cat. I was so happy to remove the collar after what seemed forever and it was so wonderful to see her turn into a content and happy cat! With her sensitivities, she will remain on z/d for life. [This review was collected as part of a promotion.]


Most Liked Negative Review


New "improved" formula is awful

My vet prescribed my cat, Milo, the z/d formula in 2012, and for the past 4 years, Milo has been healthy and happy. He loved the food and would be sure...Read complete review

My vet prescribed my cat, Milo, the z/d formula in 2012, and for the past 4 years, Milo has been healthy and happy. He loved the food and would be sure to remind me when it was time for his next meal. Ever since the improved formula was introduced, Milo has stopped eating. He's even lost a couple of pounds because he apparently only eats enough to survive. I took him for his annual vet check up a few weeks ago, and his blood work showed he was in good health overall, so I can only assume that his weight loss is due to his lack of appetite for the "improved" formula. I will echo what others have already said: the food smells rank, and I thought it had gone bad the first time I opened a can of the new formula. I believe Hill's was trying to get the price down (which they did) but in the process they sacrificed quality. I am switching to a different brand because I don't want my cat to starve himself any longer.

Reviewed by 67 customers

Displaying reviews 1-10

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Cats will not eat this food


from San Marcos TX

My first review was rejected because they said I mentioned a competitor ( I didn't).

My vet sent me home with this food to see if it would help with my cat's vomiting. This product doesn't look or smell anything like cat food, and neither one of my cats would touch it. Plus, it is the most expensive cat food I have yet to come across, and I have had cats for years. Even if my cats would eat it, the price doesn't make this a sustainable long- term option.


Cat Loves This Food


from WA

Verified Buyer

Comments about Hill's Prescription Diet z/d Feline Skin/Food Sensitivities Dry Cat Food:

My elderly cat has ongoing ear trouble where thick, tar-like earwax forms a plug deep in her ear canal. Since her veterinarian recommended we try a prescription diet for skin/food sensitivities, my darling's ear trouble has improved-she used to have to get professional ear cleanings twice a month, now we are up to once every third month! She loves this food which surprises me as I think it smells awful, but as long as it continues to work its magic I won't complain.

I will say as a side note, her veterinarian first tried to prescribe the Hill's Prescription Diet D/D which is pretty much the same as the Z/D, but has a different flavor and has fish oil listed in the ingredients. My cat is extremely allergic to anything fish (which also happens to be the number 1 allergen for cats) so if I hadn't checked the ingredient list I would have had a very sick cat on my hands. I just want to make sure someone else won't make the mistake I almost did.

  • Pet Age(s):
  • 14
  • Proud Pet Parent Of:
  • Siamese Cat

finally a food she can keep down


from ohio

Verified Buyer

been on the food for a month and she has no throw up at all!


Texture like rubber


from San Diego, CA, United States

My cat was doing great on the d/d venison until Hill's suddenly stopped making it. We switched to the z/d and two months later my cat is in the process of starving herself to death. I thought at some point she would get hungry enough to eat this food but I was wrong. The texture of this food is like rubber. I can't mix it with enough water to get the rubbery lumps out and when I inevitably have to put it in the fridge, the texture gets worse. It smells better to me than the venison did, the cat disagrees. I'm going to have to look for another brand.


New z/d formulas


from San Antonio, TX, United States

Z/d new formula is not working for my cat. I transission the food for over 3 weeks. I dont know what to do! Has anyone experienced this with thier fur baby?


Will definitely buy again!


from NH

Verified Buyer

Comments about Hill's Prescription Diet z/d Feline Skin/Food Sensitivities Dry Cat Food:

This is the only cat food that my kitties can eat, due to having inflammatory bowel disease. I am only able to get 4lb. bags at the Vet, so I love the option to be able to get a 8.5lb. for WAY cheaper than Vet cost! :)


Cat threw up


from Englewood, OH, United States

Accidentally left the Hills ZD dry cat food out while I was gone, my one cat with kidney disease got into it ate some, she threw it up, cannot eat Hills; not a good cat food. I'd rather feed her Fancy Feast than this food. She threw up the renal canned food as well from Hills.


Magic Food


from Betwixt SF and SJ

Verified Buyer

Comments about Hill's Prescription Diet z/d Feline Skin/Food Sensitivities Dry Cat Food:

This stuff is magic. Boo had oozy gross eyes and sneezed snot showers all over the house. We tried a few rounds of various medications. This food cleared it up. Phew!

  • Pet Age(s):
  • 10
  • Pet Weight(s):
  • 13
  • Proud Pet Parent Of:
  • Boo

Great food, but small


from Oxford, MS

Our cat loves the taste of the dry food, but the pieces are so small he struggles to eat individual pieces. Is there a reason for the small bits?

(9 of 9 customers found this review helpful)


Very Dissapointed


from Syracuse, NY, United States

I have been feeding my cat z/d with great results until Hill's abruptly changed the formula, now the food no longer agrees with my cat. This is my third time posting this review as Hill's has rejected the first two negative reviews I posted. Disappointed in the food and Hill's customer service. DO NOT RECOMMEND!

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