Royal Canin Veterinary Diet Adult Hydrolyzed Protein Dry Cat Food

By Royal Canin Veterinary Diet
Rated 4.6182 out of 5 stars
Veterinary Diet Item
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Royal Canin Veterinary Diet Adult Hydrolyzed Protein Dry Cat Food, 17.6-lb bag slide 1 of 9
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Royal Canin Veterinary Diet Adult Hydrolyzed Protein Dry Cat Food, 17.6-lb bag slide 1 of 9

$129.99Chewy Price
$123.49Autoship Price
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This Item - Royal Canin Veterinary Diet Adult Hydrolyzed Protein Dry Cat Food, 17.6-lb bag
Rated 4.6182 out of 5 stars
$129.99Chewy Price
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About This Item

  • A veterinary-exclusive dry cat food made with hydrolyzed protein for adult cats with food sensitivities.
  • Helps reduce skin and GI reactions that may be a result of sensitivities to common proteins found in pet foods.
  • Helps minimize risk of reaction with proteins that are broken down to a size that’s less likely to be recognized by the immune system.
  • Reinforces the skin barrier with essential nutrients to support healthy skin in cats with skin sensitivity and irritation.
  • Helps support healthy digestion with an exclusive blend of fibers and prebiotics.
Play Video: Learn More About Royal Canin Veterinary Diet From Our Team of Experts
Learn More About Royal Canin Veterinary Diet From Our Team of Experts

About Royal Canin Dermatology For Cats

Worried About Your Cat’s Skin Health?

Skin health concerns are common and can appear anywhere on your cat’s body. Your veterinarian is the expert on your cat’s health, so you should always consult with this trusted advisor to find the best solutions for your pet. This specialized expertise is why Royal Canin works closely with veterinarians to develop formulas that support skin health.

Common Causes of Skin Health Concerns

Environmental Sensitivities

Pollen, plants and dust are environmental factors that can trigger an immune response in some cats.

Food Sensitivities

Your veterinarian may recommend a diet elimination trial to help determine if your pet has a sensitivity to certain proteins in his current diet.


Your cat can pick up external parasites such as mites, fleas, ticks and lice from contaminated sources, both indoors and out.


Kittens, older cats, and cats that have recently been ill may be more susceptible to bacterial infections that can lead to skin health concerns.

How Can Nutrition Help?

Your veterinarian may recommend a Royal Canin Dermatology formula for your cat. These special formulations can:

Aid digestive health by regulating movement through the GI tract and supporting balanced digestive flora

Support the skin’s natural protective barrier

Aid cellular health with a complex blend of antioxidants.

Promote healthy skin and coat by providing long chain omega-3 fatty acids in the diet

Find The Perfect Balance

With a dry and wet feeding routine, dry food supports positive oral health while wet food supports healthy hydration.


Keep your pet's feeding on schedule.  Set your order for Autoship to make sure you always have their veterinarian-recommended nutrition on hand.

About Royal Canin

What sets Royal Canin apart is their close collaboration with veterinarians. Through these professional partnerships, they strive to learn everything they can about pet health, including how different formulas perform for different breeds, sizes, lifestyles and therapeutic conditions. Ongoing research and development allows Royal Canin to keep providing the precise nutrition cats need for a range of medical conditions.

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Top IngredientsBrewers Rice, Hydrolyzed Soy Protein, Chicken Fat...Chicken By-Product Meal, Powdered Cellulose, Tapioca...Peas, Rabbit Meal, Pea Protein...Peas, Duck By-Product Meal, Pea Protein...Chicken By-Product Meal, Brewers Rice, Corn...
Special DietLimited Ingredient Diet, Pea-Free, Veterinary Diet...Pea-Free, Veterinary Diet, Weight Control, With GrainLimited Ingredient Diet, Veterinary DietLimited Ingredient Diet, Veterinary DietPea-Free, Veterinary Diet, With Grain
Food FlavorChicken, PoultryChicken, PoultryRabbit, MeatDuck, PoultryChicken, Poultry
Health FeatureSkin & Coat Health, Digestive HealthWeight ManagementSkin & Coat Health, Digestive HealthSkin & Coat Health, Digestive HealthUrinary Tract Health
Food FormDry FoodDry FoodDry FoodDry FoodDry Food

Questions & Answers

32 Customer Questions

When will it be in stock again?

Does this come in wet food?
Answer by ChewyJan 01, 2020
At this time, the manufacturer does not make a wet food version of this formula.

Dies this product cause cat to drink a lot of water and gain weight. My cat is drinking a lot and gained weight.
Answer by ChewyJun 19, 2020
Royal Canin wouldn’t expect this formula to cause increased thirst. It is a bit higher in calories and fat so weight gain may be possible if fed in larger amounts.

Is this for kidney diseSe of urinRy tract disease?
Answer by ChewyMar 12, 2021
This formula is for adult cats with food sensitivities. This diet is formulated with hydrolyzed soy proteins, composed of low molecular weight peptides, so they can be absorbed in the digestive tract with a reduced risk of triggering an immune reaction. Optimal amounts of B vitamins and amino acids reinforce your cat’s skin barrier. Omega-3 fatty acids EPA and DHA help promote healthy skin and coat. An exclusive blend of fibers helps support healthy digestion in cats prone to digestive upsets, including diarrhea.

ReviewsWrite a Review

Rated 4.6182 out of 5 stars
749 Reviews
Would recommend to a friend

749 Customer Reviews

Rated 5 out of 5 stars
By Sylvester on Aug 3, 2022

No pickiness here

Sylvester loves this food! The crunchiness that he prefers is a bit softer than what he was eating before & the taste must really be to his liking as he munches on it off & on throughout the day. I purchased this food because it claims that it helps with dry, itchy skin due to dermatitis or food allergies in hopes that it will help keep my cat from scratching & over grooming. I can’t say yet if it’s helping or not as it may take several weeks to see any results. My only negative comment at this point is that the price is downright awful.

Rated 5 out of 5 stars
By Carmen on Jul 24, 2022

Excellent food

Thank you Royal Canin for making an excellent food that has made a huge difference in my cats health. He has IBD and has been on this diet for 6 months now. Before this food, he was vomiting every 7-14 days. Since being on this diet he now only vomits every 1-2 months. We use it dry and also soak it in water to make a wet food so he gets more water. His stools are now completely normal, they don’t smell and there’s a smaller amount which I’ve read means he’s absorbing more nutrients and creating less waste. He’s 9 yrs old and has more energy than he’s had in a long time. This increased energy has resulted in a 2 lb weight loss so he’s now a very healthy weight. Please don’t ever stop making this food.

Rated 1 out of 5 stars
By Sadie1721 on Aug 11, 2022

Was not a good fit

Only tried these after not being able to get Jasmine’s usual Hydrolyze cat treats from Royal Cain. I could tell she was not feeling well. No cuddles and sleeping in strange places. When I stopped giving them to her, she returned to her old self. Cuddling, purring playing and laying on her back because she is so happy. Definitely can’t buy these anymore!!!

Rated 5 out of 5 stars
By catlore on Jul 20, 2022

Toby loves Hydrolyzed Protein!

Toby's Dermatologist recommended Ultamino. We were able to find one bag locally during the time it was backordered everywhere. Toby ate it but not enthusiastically. In fact, he lost weight on it. When I could not find another bag of Ultamino, his Primary Veterinarian suggested Hydrolyzed. Toby loves this food. He's eating it very well and has gained back some of his weight already!

Rated 5 out of 5 stars
By Kaila on Jun 25, 2022

Stark loves it!

I have a 3 year old Persian boy named Stark. For the past year he's struggled to keep food down consistently. Some times were better than others, but the past month has been awful. He threw up nearly whatever he ate. When I took him to the vet, she did a blood test to make sure it wasn't his kidneys or something else. When that test came back clear, she put him on this food which is made for cats with food sensitivities. I was worried he would not want to eat it. Or that he would eat it and would throw it up. My fears were unfounded. He loved it IMMEDIATELY and has no issues with throwing it up. I'm so happy.

Rated 5 out of 5 stars
By coppertop on Jul 22, 2022

good for our IBD kitty

Our kitty lost weight so quickly recently, and it was time to put him on steroids for suspected (and then confirmed) IBD and find new food. This is the only food of the samples our vet gave us that he likes. The other two kitties like it too, which just makes this a very “boujy” household now :). Anyway, our IBD guy has gained back a full pound in about a month, and we are thrilled.

Rated 5 out of 5 stars
By TuxedoCatMom on Jun 22, 2022

Good for Fussy Tummy

Our cat was diagnosed with IBD about a year ago and hydrolized protein food was recommended. She has been doing fine on Ultamino, but it is often out of stock. Last time I couldn’t get Ultamino we tried Hill’s Z/D which was OK - she liked the flavor and her poops were a bit soft but returned to solid within a few days. But then she was vomiting water/saliva (a symptom of IBD flare-up) and we switched back to Ultamino as soon as it was back in stock. This time Ultamino is out of stock for a several weeks and we are using Royal Canin Hydrolized Protein kibble which she likes the taste so much that she picks out the new food when we give it to her mixed with the old food during the transition. Her poops were soft at first, resolved back to solid after about 4 days. She had one barfing episode (water/saliva) and has been fine since. We are very pleased with the new food and plan to keep going with this one. Smaller size kibbles are nice, too, I think she prefers this.

Rated 1 out of 5 stars
By Tracy on Jun 28, 2022

Replacement food

Chewy is awesome you deliver really fast, which I really appreciate! I’m just disappointed with the brand. They have been out of the Ultamino dry cat food for weeks and I have not been able to find it anywhere. My cat has really bad digestion issues and it’s the only cat food that worked for her. The vet recommended this one as an alternative, But she is not doing well with it. The Ultamino is the only one that she could tolerate.. Again I love chewy and highly recommend you to everyone. Just over the whole Covid short supply etc.

Rated 3 out of 5 stars
By Careless on Aug 3, 2022

Must taste great!

All 5 of my rescues like the taste of this kibble. Unfortunately my kitty with the digestive issue has not had any significant improvement of his condition,. However since my vet has not been able to identify the underlying cause of his problem I cannot fault the food!

Rated 5 out of 5 stars
By Bridey on Jul 14, 2022

Cats like it

Vet recommended this diet for 2 of our cats. One has itchy skin allergies and the other has been having chronic stomach issues After having some lab and an ultrasound we switched tummy cat to the HP diet. He likes it a lot and his stomach issues have resolved. Diet is fine for our other 2 healthy cats as well