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

Clinically tested to help reduce skin reactions that may be due to sensitivities to common proteins found in pet foods

Minimizes the risk of reaction with proteins extensively broken down to a size that’s virtually unrecognizable by the immune system

Reinforces the skin barrier with specific nutrients to support healthy skin in cats with skin sensitivity and irritation

Helps support healthy digestion with an exclusive blend of fibers

Your veterinarian may have put your cat on an elimination diet trial to test for food sensitivities. Or they believe your cat needs long-term support for their skin issues. In any case, your vet recommended Royal Canin Ultamino for a reason. This innovative diet is the result of years of extensive research, formulated as a nutritional solution for pets with severe food sensitivities. Its highly palatable formula contains a protein source that is broken down to an amino acid level so it can be absorbed in the digestive tract with reduced risk of triggering a food sensitivity. 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. And Relative Supersaturation (RSS) methodology helps reduce the risk of struvite and calcium oxalate crystal and stone formation in the bladder. 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 Ultamino long-term to cats with food sensitivities.

Corn starch, hydrolyzed poultry by-products aggregate, coconut oil, vegetable oil, powdered cellulose, natural flavors, dried chicory root, fish oil, calcium sulfate, sodium silico aluminate, potassium chloride, fructooligosaccharides, sodium pyrophosphate, monocalcium phosphate, DL-methionine, choline chloride, L-lysine, vitamins [DL-alpha tocopherol acetate (source of vitamin E), L-ascorbyl-2-polyphosphate (source of vitamin C), niacin supplement, vitamin B12 supplement, D-calcium pantothenate, biotin, pyridoxine hydrochloride (vitamin B6), riboflavin supplement, thiamine mononitrate (vitamin B1), vitamin A acetate, folic acid, vitamin D3 supplement], taurine, L-tryptophan, L-alanine, histidine, salt, trace minerals [zinc proteinate, zinc oxide, manganese proteinate, ferrous sulfate, copper sulfate, manganous oxide, sodium selenite, copper proteinate], marigold extract (Tagetes erecta L.), rosemary extract, preserved with mixed tocopherols and citric acid, glycine, magnesium oxide, potassium iodate.

Calorie Content

This diet contains 3766 kilocalories of metabolizable energy (ME) per kilogram or 335 kilocalories ME per cup on an as fed basis (calculated).

Crude Protein (min)24.5%
Crude Fat (min)15.0%
Crude Fiber (max)5.7%
Moisture (max)8.0%
Vitamin E (min)413 IU/kg
Ascorbic acid* (min)160 mg/kg.

*Not recognized as an essential nutrient by the AAFCO Cat Food Nutrient Profiles.

Weight Low Activity Medium Activity High Activity
4 lb (2 kg) 1/4 cup (26 g) 3/8 cup (33 g) 1/2 cup (39 g)
6 lb (2.5 kg) 3/8 cup (30 g) 3/8 cup (38 g) 1/2 cup (46 g)
7 lb (3 kg) 3/8 cup (35 g) 1/2 cup (43 g) 5/8 cup (52 g)
8 lb (3.5 kg) 1/2 cup (39 g) 1/2 cup (48 g) 5/8 cup (58 g)
9 lb (4 kg) 1/2 cup (43 g) 5/8 cup (53 g) 3/4 cup (64 g)
10 lb (4.5 kg) 1/2 cup (46 g) 5/8 cup (58 g) 3/4 cup (69 g)
11 lb (5 kg) 5/8 cup (50 g) 3/4 cup (62 g) 7/8 cup (75 g)
13 lb (6 kg) 5/8 cup (57 g) 3/4 cup (71 g) 1 cup (85 g)
15 lb (7 kg) 3/4 cup (63 g) 7/8 cup (79 g) 1 1/8 cups (95 g)
18 lb (8 kg) 3/4 cup (70 g) 1 cup (87 g) 1 1/8 cups (104 g)
20 lb (9 kg) 7/8 cup (76 g) 1 1/8 cups (95 g) 1 1/4 cups (113 g)
22 lb (10 kg) 7/8 cup (82 g) 1 1/8 cups (102 g) 1 3/8 cups (122 g)
Royal Canin Veterinary Diet Feline Ultamino Dry Cat Food

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Customer reviews

Holly Fazio
24 Feb 2021

Did the formula change?

My cat has allergies and stomach ulcers. She's been on Ultamino for about four years now but with the latest bag with the new packaging, she's been throwing it up. Has the ingredients/formula changed? Not sure if I should just give her more time to acclimate or change brands.
17 Nov 2020

Keeps my cat's tummy issues at bay

My cat has tummy issues, we think it's a parasite, but just in case we give her this food plus probiotics. Just wish there was a treat or wet food option so she doesn't get bored so easily! Also this food has the distinct smell of tomato soup, but I wouldn't call it a bad smell especially because cat food normally smells much worse! Also it's super expensive, but what can ya do about that?
17 Nov 2020

Cat loves it

The vet recommended us this a month ago. We were using instinct from petsmart after our cat starting having awful reactions to her old food. She was scratching so hard, vomiting blood and was losing her hair. Instinct help the symptoms a lot but didn’t get rid of them. After getting the ultamino food her symptoms are much better. Upon opening the bag I noticed how amazing it really it smells just like something I would eat. No nasty pet food odors to it. I gave my kitty 25% ultamino food and 75% instinct to give her a smooth transition. Welllll she literally ate all of the ultamino food instantly and refused to eat any of her old food. We added more of her new food and still the same thing. We ended up just tossing her old food. Her hair is finally growing back, absolutely no vomiting and she actually begs us for her morning food bowl to be full now. It is pricy but honestly it’s worth it. Thank you royal canin.
21 Jul 2020

Did what it said it would...when she would eat it

My cat has a food allergy and gets super itchy. She also has a bad problem with hairballs. The Ultamino helped solve the itchiness to a certain degree, she still continued to over groom - making the hairball problem worse. She also hates, I mean hatesssss, this food. It smells terrible and I gag filling the bowl, so I can only imagine how she feels eating it. I have to monitor the feeding of my other cat, who can eat a much less expensive food, because Scout will steal her food if I don't stop her. Also the cost of this food is astronomical, but worth it to stop the gut problems.
30 Apr 2020

No more vomiting!

Our cat has been on this over a year now and she is so much better. We tried other foods and nothing worked. She prefers this to anything else, and even after losing many of her teeth she eats it just fine. She doesn't throw up anymore and she feels much better!
09 Jan 2020

Cat likes it and has solved most allergy issues

Our vet had us put our cat on this food and it has solved the vomiting issues! We are still working on scratching and skin reactions but has worked so far to atleast reduce the itch. She eats it no problem just wish we could have a wet food and or treat option for our girl.
Royal Canin response
Glad to hear she is improving!
Brittany A
08 Nov 2019

Great for Gastrointestinal Issues

My cat has been on this diet for 6 months now and it is the only food that prevents him from vomiting! I just wish it came in a larger bag.
02 Nov 2019

This food helps control my cats irritable bowel issues AND she loves the taste.
Rich 47
30 Oct 2019

The only try cat food we purchase

Our calico cat, Cali has a severe are auto immune disease and this is the only dry food she doesn't get a severe reaction to. She was a rescue and needs special attention. She loves this food and it helps her live a normal life. This little lover deserves the best!
30 Oct 2019

Helped heal my cat with food allergies!

We used Ultamino exclusively for just over a year while trying to figure out why our cat was having major skin issues. We eventually narrowed it down to food allergies, and I credit our use of Ultamino for helping to get our Autumn's face healed. It helped when all the medications couldn't. I only wish it was a bit cheaper so we could have left all of our cats on it long term. It was truly life-changing for our girl.