Helping cats and dogs live their healthiest lives.
Sacred Birman kitten stood next to an adult Yorskhire Terrier in black and white.
Vet Products

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

Whether a veterinarian has determined through an elimination diet trial that your cat has food sensitivities or that they require long-term support for their skin and GI issues, your vet recommended Royal Canin Hydrolyzed Protein Adult HP for a reason. This highly palatable diet is designed for adult cats. It’s 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. And with strict manufacturing procedures to help avoid cross contamination, you can confidently feed Royal Canin Hydrolyzed Protein Adult HP to your cat for a happy, healthy life.

Brewers rice, hydrolyzed soy protein, chicken fat, powdered cellulose, natural flavors, dried plain beet pulp, calcium sulfate, fish oil, monocalcium phosphate, potassium chloride, vegetable oil, DL-methionine, sodium pyrophosphate, calcium carbonate, sodium silico aluminate, fructooligosaccharides, salt, choline chloride, taurine, vitamins [DL-alpha tocopherol acetate (source of vitamin E), niacin supplement, L-ascorbyl-2-polyphosphate (source of vitamin C), D-calcium pantothenate, biotin, pyridoxine hydrochloride (vitamin B6), riboflavin supplement, thiamine mononitrate (vitamin B1), vitamin A acetate, vitamin B12 supplement, folic acid], trace minerals [zinc proteinate, zinc oxide, manganese proteinate, manganous oxide, copper sulfate, ferrous sulfate, sodium selenite, copper proteinate, calcium iodate], marigold extract (Tagetes erecta L.), rosemary extract, preserved with mixed tocopherols and citric acid.

Calorie Content

Contains 3909 kcal ME/kg (calculated), 328 kcal ME/cup

Crude Protein (min)24.0%
Crude Fat (min)18.0%
Crude Fiber (max)6.3%
Moisture (max)8.0%
Methionine-cystine (min)0.92%
Eicosapentaenoic Acid (EPA) (min)0.13%
Docosahexaenoic Acid (DHA) (min)0.05%
Pantothenic acid (min)78 mg/kg
Niacin (min)256 mg/kg.
Weight Low Activity Medium Activity High Activity
3 lb (1.5 kg) - 3/8 cup (26 g) 3/8 cup (31 g)
4 lb (2 kg) - 3/8 cup (31 g) 1/2 cup (38 g)
6 lb (2.5 kg) - 1/2 cup (37 g) 1/2 cup (44 g)
7 lb (3 kg) - 1/2 cup (42 g) 5/8 cup (50 g)
8 lb (3.5 kg) - 1/2 cup (47 g) 5/8 cup (56 g)
9 lb (4 kg) - 5/8 cup (51 g) 3/4 cup (62 g)
10 lb (4.5 kg) - 5/8 cup (56 g) 3/4 cup (67 g)
11 lb (5 kg) 5/8 cup (48 g) 3/4 cup (60 g) 7/8 cup (72 g)
12 lb (5.5 kg) 5/8 cup (52 g) 3/4 cup (65 g) 7/8 cup (77 g)
Royal Canin Veterinary Diet Feline Hydrolyzed Protein Adult HP Dry Cat Food

Still have questions about this product?

Find out how to reach us, and get in touch.

Ask a question

Customer reviews

Angie M
13 Nov 2019


Feline Hydrolyzed Protien Adult HP Dry Cat food has saved my cats ears from becoming dirty, oily & all over stressed. She had a bad case of ear infections and this food saved her well being. Very grateful I found this amazing dry food! Never going back to any other kind of food. Thank you Royal Canin for this amazing cat food!
31 Oct 2019

Great food

I put my cat Tia on this cat food after discovering she cld not keep down the other dry cat food I had her on by suggestion of her Vet.
31 Oct 2019

Expensive but top quality

Vet recommended for cat with some specific food sensitivities.
James 42
30 Oct 2019

Fussy cat with gastro-intestinal issues;

Work fine for a while then started to have loose stools. Did not think your product was the issue, but after exhaustive removing and/or substitutions, removing your product from her diet resolved the problem. She did like the HP dry food so I mixed with your Persian cat dry food in a 50.50 ratio. All is well.
30 Oct 2019

The best for my IBD kitty

My kitty is 12 years old and was diagnosed with inflammatory bowel disease about five years ago. After trying prescription diets from other companies with little success, I did some research online and I found that many other owners of IBD kitties were using Royal Canin HP. My kitty likes the dry formula and his IBD has been under control since I first put him on it two years ago. He loves the food and I am happy there are no more IBD flare ups. Thank you, Royal Canin!
30 Oct 2019

Keep her alive

My cat is 19 years old. We almost lost her 6 years ago. Vet put her on this food. She is still with us & doing well for her age! Sometimes, I think she will live forever!
30 Oct 2019

Works well for cats with IBD

Only food my cat with IBD would eat. Must taste good.
30 Oct 2019

Great product

My kitty has serious food allergies and very finicky eater. Thankfully she loves the taste of this nutritious food.
30 Oct 2019

Hydrolyzed Protein HP Dry Cat Food

My cats have been using this product for many years now and they love it! It’s very palatable to them, no issue when transitioning them from their old food. Their tummies have settled down and skin issues have greatly improved. Would highly recommend if your vet suggests making the transition to this food.
30 Oct 2019

Cat loves and better tummy

My 15 year old cat is on this food due to stomach issues after getting bladder stone issues too. She has taken to it very well. She likes it, in fact all the cats in the house like it. She seems more active and healthy. Her fecal mater is healthy and bonus, it does not stink. Previously she was on SO just for her bladder issues.
Cookie Settings