Royal Canin Veterinary Diet Calm Formula Dry Cat Food

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8.8-lb bag
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The Royal Canin Veterinary Diet Calm formula is designed for cats. It include two amino acids that help pets maintain emotional balance. Alpha-casozepine is an amino acid chain derived from milk shown to have calming effects. L-tryptophan  is a more commonly known amino acid that also has calming effects. In addition, the formulas include Nicotinamide, also known as Vitamin B3. Nicotinamide creates a calming effect within the central nervous system.

Key Benefits

  • Contains a hydrolyzed milk protein and tryptophan (anaminoacid) to help maintain emotional balance of the cat
  • Precise amounts of B vitamins and amino acids to help maintain the skin's natural barrier effect
  • Specific nutrient blend to help regulate intestinal transit and to help support beneficial digestive flora
  • This diet promotes a urinary environment unfavorable to the development of both struvite and calcium oxalatecrystals
  • A combination of fibers encourages normal intestinal transit and the elimination of hairballs in stools

Note: Royal Canin Veterinary 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

See all items by Royal Canin Veterinary Diet

  • Item Number
  • Weight
    8.8 pounds
  • Brand
    Royal Canin
  • Food Form
    Dry Food
  • Lifestage
  • Made in
    United States
  • Special Diet
    Sensitive Digestion, Prescription Food

Nutritional Info


  1. Chicken By-Product Meal, Corn, Brewers Rice, Wheat Gluten, Corn Gluten Meal, Wheat, Natural Flavors, Powdered Cellulose, Dried Plain Beet Pulp, Chicken Fat, Fish Oil, Calcium Sulfate, Salt, Potassium Chloride, Dl-Methionine, Vegetable Oil, Fructooligosaccharides, Taurine, L-Lysine, Psyllium Seed Husk, Choline Chloride, Vitamins [Dl-Alpha Tocopherol Acetate (Source of Vitamin E), Inositol, 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], Dried Hydrolyzed Casein, L-Tryptophan, Marigold Extract (Tagetes Erecta L.), Trace Minerals [Zinc Proteinate, Zinc Oxide, Ferrous Sulfate, Manganese Proteinate, Manganous Oxide, Copper Sulfate, Calcium Iodate, Sodium Selenite, Copper Proteinate], L-Carnitine, Rosemary Extract, Preserved with Mixed Tocopherols and Citric Acid.

Caloric Content

  1. 3,434 kcal/kg, 330 kcal/cup
Guaranteed Analysis
Crude Protein 34.0% min
Crude Fat 9.0% min
Crude Fiber 6.0% max
Moisture 8.0% max
Tryptophan 0.35% min

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Customer Reviews

Rated 4.7 out of 5 by 53 reviewers.
Rated 5 out of 5 by Excellent, costly but GOOD I initially was given this food because my cat was suffering from excessive allergies (itching/scratching/losing hair on paws) and a jealous attitude towards a homeless cat that I feed outside the house. The vet recommended that I change my ways and feed the stray cat at the side of the house and not right out front. Well, I did that and I also started using the calm food as recommended. My cat stopped the itching within 3 days of only feeding him calm. My cat liked this food from the start, I did not have to mix it with his old dry food. It also does not have a strong order as the N/D Royal Canin food does. The only thing is sometimes my cat eats fast and throws up so I just want to warn you if your cat does that, give him/her smaller portions instead of larger portions. I will continue to buy this food until I can find a good replacement at a cheaper price. September 12, 2016
Rated 5 out of 5 by Worked My torti had taken up refuge in our bedroom to get away from the others. Within a week of eating this food she started lounging in the living room! October 25, 2016
Rated 3 out of 5 by Tasty but not the results I need Royal Canin Calm is supposed to calm your cat but my girl is still as rambunctious as before-but that is fine. The only problem is that she has some constipation and the Calm formula doesn't address that, so I need to go back to the Hairball 34 from Royal Canin or Vet Digestion formula also from Royal Canin. The flavor is great on all 3 brands of RC and my cats love them. October 16, 2016
Rated 5 out of 5 by This product is wonderful Thank you so much for making a product that really works my cat is so much calmer and she love it. If you have a cat or dog that needs help with keeping calm this is the answer. Thank you! Thank you! October 21, 2016
Rated 5 out of 5 by My cat loves it My cat loves it and he acts like he feels better. I mix it with his urinary health food. The vet approval process was quick and I didn't have to do a thing. October 12, 2016
Rated 5 out of 5 by Repeated Success A few years ago, after medication did not affect our alpha female from marking, our vet suggested this food. Boom!! In less than 2 weeks she completely stopped marking and picking on our other kitties! After a few months we switched her back to her usual IAMS dry food and have not had the problem since then. We took in a sweet little female stray who was in our backyard for a couple of years. She was tame and we brought her in at night to sleep with us. No problem, right? Well, she got into rat poison at our neighbor's and she fell ill. We now had the task of making her an indoor kitty. She was not doing well with this, so we put her on this food and the transition is going so much better! It is still a work in progress with her, but she is adjusting and finally allowing us to sleep at night without crying at the doors and windows all night. Our other kitties eat this food, too, including our previously mentioned alpha female who did not welcome another girl into the house. Buy this if your cat needs help with any type of emotional adjustments to their environment or the introduction of a new pet. It works! July 25, 2016
Rated 5 out of 5 by My kittie's superfood! Well digested, he loves it. My 11 month old kitten loves this food. Transitioned from another top brand as recommended by Vet. without any digestive difficulties. It has been a week now and his appetite and 'mood' has elevated nicely. September 25, 2016
Rated 5 out of 5 by Something my cat has to eat This prescription cat food, Calm, is what my cat has to eat to stop him from hurting people and other cats. He has a mean nasty temperament and this food keeps him.......calm! September 15, 2016
  • 2016-10-31 T06:44:44.193-05:00
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