Hill's Prescription Diet z/d Original Skin/Food Sensitivities Canned Cat Food, 5.5-oz, case of 24

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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 sensitive 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 reaction to food, it is even more important to feed the right food. At Hill's, 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.

Key Benefits

  • **Hill's is going through a packaging change: Original was formerly Ultra; same great formula, just a new name!**
  • Formulated with Hill's Hydrolyzed Protein System - highly digestible proteins that minimize the chances of adverse reactions to food
  • No intact animal protein to help avoid adverse reactions to food
  • Highly digestible carbohydrates and fats to help reduce gastrointestinal workload
  • Increased in omega 3 and 6 Fatty Acids to help nourish the skin and coat
  • Added antioxidants to support a healthy immune system
  • Made in the USA

Special Note

Hill's Prescription Diets require a veterinary prescription. This product will not be shipped until a copy of a valid prescription authorization is faxed to 1-800-619-7973 or e-mailed to rx@chewy.com.

See all items by Hill's Prescription Diet

  • Item Number
  • Food Texture
  • Brand
  • Food Form
    Wet Food
  • Lifestage
  • Made in
    United States
  • Special Diet
    Sensitive Digestion, Prescription Food

Nutritional Info


  1. Hydrolyzed Chicken Liver, Water, Corn Starch, Soybean Oil, Powdered Cellulose, Calcium Carbonate, Dl-Methionine, Potassium Chloride, Dicalcium Phosphate, Choline Chloride, Vitamins (Vitamin E Supplement, Thiamine Mononitrate, Ascorbic Acid (Source of Vitamin C), Niacin Supplement, Pyridoxine Hydrochloride, Calcium Pantothenate, Vitamin B12 Supplement, Riboflavin Supplement, Biotin, Vitamin D3 Supplement, Folic Acid), Iodized Salt, Taurine, Calcium Sulfate, Minerals (Zinc Oxide, Ferrous Sulfate, Manganous Oxide, Copper Sulfate, Calcium Iodate, Sodium Selenite), Beta-Carotene.

Caloric Content

  1. 169 kcal/5.5 oz can
Guaranteed Analysis
Crude Protein 7.5% min
Crude Fat 2.3% min
Crude Fiber 0.6% max

Feeding Instructions

Adjust feeding amounts as necessary to maintain optimal weight. If you are unsure, ask your veterinarian. For best results & safety practices: Cover and refrigerate unused portion. Gradually transition to your pets new food over a 7 day period. Exclusively feed the recommended Prescription Diet dry food, canned food & treats. Keep fresh water available at all times. Have your veterinarian monitor your pets condition.

Transition Instructions

A gradual transition to a new pet food is important to avoid digestive upset. To transition, mix your pet’s current food with the new food. Over 7 days, gradually decrease the amount of the current pet food while increasing the amount of new pet food. In some cases, your veterinarian may recommend no transition or a shorter transition time.

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Customer Reviews

Rated 4 out of 5 by 92 reviewers.
Rated 3 out of 5 by Helps, but cat doesn't like it much I bought this product for my cat, who has long-standing IBD. I don't like prescription diets, but since nothing else was helping him, I decided to try it. The first few cans I got from the vet were okay, other than looking like brown Jello, but at least my cat ate it. So I bought a case of the stuff from Chewy. The new stuff was marked "improved formula," which is arguable. It is slightly less gelatinous, but my cat doesn't like it as much. I think it's going to be hard to keep his weight up on this stuff since his appetite is rather poor anyway, despite being on an appetite stimulant. I do mix some of the dried Z/D in with it, which helps him accept it a little better. Can't really say whether I recommend it or not. Yes, because it does seem to lessen his symptoms of IBD, but no because it isn't very palatable. Some of the other cats don't seem to have a problem with it, so I guess you just have to try it and see how your cat reacts. August 26, 2016
Rated 1 out of 5 by The new z/d formulation is horrible. My cat has an autoimmune disease and was doing well on the old z/d formulation for over a year. He was switched to the new formulation without warning while being boarded because the old stock was used up. He came home with diarrhea and I noticed that the smell of the new formulation was horrible. Sort of like ammonia. I called Hill's right away and they calmly told me that there had been NO other reports of problems with the new formulation. They said only minor changes were made to the fiber and the antioxidants. They sent me 3 coupons. The new formulation smells and looks so different that my poor kitty doesn't want to eat it. We are now trying desperately to find another product that he can eat. Recently, I found out that the new z/d formulation is back ordered and I'm hoping they are changing it back to the old formulation. Please keep contacting Hill's!!! September 29, 2016
Rated 5 out of 5 by Cat loved eating the old version of Z/D. My 14 year old cat has loved eating the older original Z/D formula for years. That formula is what I was ask to review as that is what I purchased from Chewy. Hills now has a new IMPROVED FORMULA and the amount of some of the ingredients has changed. Example-iodized salt has moved up to the 10th ingredient listed in the new formula compared with being about the 20th ingredient in the old formula. Some ingredients, calcium sulfate, cysteine, l-lysine, manganese sulfate and potassium citrate have been added. Sodium Selenite has been removed. Chewy now shows the IMPROVED FORMULA on its web site. That can has red on the label... the old can didn't. To help your cat avoid any possible digestive upset, it is best to gradually add more of the new food to the old food, for about a week, before totally feeding the new food all by itself. I think Hills recommends this also. I'll review the new formula later. August 30, 2016
Rated 5 out of 5 by GREAT COMPANY! GREAT PRODUCT! A+++++ Thank you very much for the outstanding service. Your crew cares about what they are doing. Very refreshing to have good people out there looking to help others. The product was delicious. "Lil' 2Pac" hasn't stopped dancing since it arrived. Thank you again. You have a customer and a very happy/healthy kitty thanks to YOU..... October 29, 2016
Rated 5 out of 5 by No problems! Everything seems to work out without a hitch and the price was good! October 16, 2016
Rated 1 out of 5 by New formula is horrible Prior to the "new improved formula", our cat was doing much better with his breathing and digestive issues. In fact, we had been able to reduce his prednisolone dosage from .8 ml daily to .4 ml daily - and we were ecstatic. Once the formula changed, our cat threw EVERYTHING up when he ate it - and his breathing started sounding worse. He eventually refused to eat it. We've had to up his dose again, and are currently working with our vet to find a different food. Very disappointed that Hill's changed the formula. October 10, 2016
Rated 2 out of 5 by NO to the "Improved" formula My cat has been dealing with suspected food allergies since February, after many months of agony and stress and many expensive vet visits we put her on the Z/D. She was doing quite well on it, it was controlling her scratching and licking and she was just in general more herself....until the new formula came out, I noticed almost immediately the itching and licking return. I called Hills to see what they changed and they said that they did not change any ingredients but added more fiber and anti oxidants....I am not happy. They also asked if I transitioned her to the new formula, how am I supposed to do that when just one day you show up to the pet store and there is a new formula with no warning that the old was going away?!!! Going to try a LID that has better ingredients to begin with :( September 8, 2016
Rated 4 out of 5 by Product seemed fresh. Product appeared to be fresh and consistency decent. October 18, 2016
  • 2016-10-31 T07:01:05.898-05:00
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