Helping cats and dogs live their healthiest lives.
Sacred Birman kitten stood next to an adult Yorskhire Terrier in black and white.
Vet Products
FOUNDED BY A VETERINARIAN, ROYAL CANIN has over 40 years experience in health nutrition. Our work with pet nutritionists, breeders, and veterinarians from around the world has provided us with knowledge about the specific nutritional requirements of dogs. This knowledge has allowed us to formulate the optimal diet for your dog’s special needs.

Chicken by-product meal, corn, brewers rice, corn gluten meal, wheat, wheat gluten, natural flavors, powdered cellulose, dried plain beet pulp, chicken fat, fish oil, calcium sulfate, salt, potassium chloride, DL-methionine, sodium pyrophosphate, vegetable oil, fructooligosaccharides, 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, folic acid, vitamin B12 supplement, vitamin D3 supplement], taurine, choline chloride, psyllium seed husk, L-lysine, dried hydrolyzed casein, trace minerals [zinc proteinate, zinc oxide, manganese proteinate, ferrous sulfate, manganous oxide, copper sulfate, calcium iodate, sodium selenite, copper proteinate], L-tryptophan, marigold extract (Tagetes erecta L.), L-carnitine, rosemary extract, preserved with mixed tocopherols and citric acid.

Calorie Content

This diet contains 3438 kilocalories of metabolizable energy (ME) per kilogram or 330 kilocalories ME per cup on an as fed basis (calculated).

Crude Protein (min) 34.0%
Crude Fat (min) 9.0%
Crude Fiber (max) 6.0%
Moisture (max) 8.0%
Tryptophan (min) 0.35%

Weight Tendency to become Overweight Ideal Weight
4.4 lb (2 kg) 1/4 cup (28 g) 3/8 cup (35 g)
5.5 lb (2.5 kg) 3/8 cup (32 g) 3/8 cup (40 g)
6.6 lb (3 kg) 3/8 cup (37 g) 1/2 cup (46 g)
7.7 lb (3.5 kg) 3/8 cup (41 g) 1/2 cup (51 g)
8.8 lb (4 kg) 1/2 cup (45 g) 5/8 cup (57 g)
9.9 lb (4.5 kg) 1/2 cup (49 g) 5/8 cup (61 g)
11.0 lb (5 kg) 1/2 cup (53 g) 3/4 cup (66 g)
13.2 lb (6 kg) 5/8 cup (60 g) 3/4 cup (75 g)
15.4 lb (7 kg) 3/4 cup (67 g) 7/8 cup (84 g)
17.6 lb (8 kg) 3/4 cup (74 g) 1 cup (92 g)
19.8 lb (9 kg) 7/8 cup (80 g) 1 cup (101 g)
22.0 lb (10 kg) 7/8 cup (87 g) 1 1/8 cups (108 g)

Royal Canin Veterinary Diet Feline Calm Dry Cat Food

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Customer reviews

25 Jun 2019

Sent from above!

My Mom has this calico that shut down and had a lot of health issues due to her anxiety. I have a pair of beautiful kitties that I have had to leave with my Mom because of my dogs, and as a result they too have been aggravated and upset, my DLH male in particular raising Cain and beating up on ALL of her cats and my girl. Well. Look at this picture of my Mom's little Anxious Calico and my DLH. Snuggling. Everyone has quieted down and relaxed immensely and that was just from 3 weeks on this amazing food. Will not be changing back ever again!
Royal Canin response
Wonderful to hear!
09 Nov 2018

Work so well

I have a very nervous, stressed out kitty who would prefer to be an only cat in a home with 11 cats. The Calm food does just that, takes the "edge" off and makes her more comfortable and less afraid. I believe this food gives her a better life. must taste wonderful because my other cats steal it whenever they can!
Royal Canin response
Thank you for sharing your personal experience!
04 Nov 2018

It Works!

Butters has always had behavioral problems as well as urinary issues. After my vet recommended this food, he no longer punishes me with urinating on my belongings!
02 Nov 2018

Amazing results!!!!

My kitty Pipsqueak was a fluffy bundle of nerves that would hide and bolt at any of my roommates that came home, new people, or any noise. Now he just chills, still doesn’t like anyone but me, but he doesn’t bolt anymore. And always meowing for more food!!!
Jeannie W
01 Nov 2018

Crazy about Calm for Cats

Tried this product over a couple years ago and I have been thrilled with the results I've seen in my cat.
31 Oct 2018

Calm really keeps cats happy

I work at a Veterinary clinic and bought a bag to try it on our clients. 100% of client cats showed improvement, easier to handle and more social at home.
31 Oct 2018

Actually works!

I have been using royal canin Rx calm food for my cats for a couple of years now. Because my cats are all formerly semi-feral cats who were brought in from outside, i find the calm formula helps everyone get along better and be less nervous.
31 Oct 2018

Good stuff.

Bought this brand when I acquired a second kitty. Calms them both so they get along.
31 Oct 2018

Didn't work for us

The vet suggested that I try this food but my cats didn't like it very well. I continued to mix in with their other dry food but didn't buy more when it was gone.
30 Oct 2018

We loved this product!

This food seemed to be very effective in easing some of my cat's negative behaviors. Best of all, he liked it, and he is extremely picky.