Royal Canin Veterinary Diet Calm Formula Dry Dog Food

Veterinary Diet Item

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This item requires vet authorization. Details

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Royal Canin Veterinary Diet Calm formula is designed for dogs under 33 pounds. It includes 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. It's also formulated to meet the nutritional needs of dogs facing digestive, skin and urinary sensitivities.

Key Benefits
  • Canine calm is a highly digestible, palatable, complete and balanced adult dog food formulated to meet the nutritional needs of dogs facing digestive, skin and urinary sensitivities.
  • Formula contains calming effects from Alpha-casozepine, L-tryptophan and Nicotinamide (Vitamin B), optimal amounts of these B vitamins and amino acids help maintain the skin’s natural barrier effect
  • S/O index Promotes a urinary environment unfavorable to the development of both struvite and calcium oxalate crystals
  • Contains a specific nutrient blend to help regulate intestinal transit and to help support beneficial digestive flora
  • Also contains nutrients to support healthy teeth

Veterinary Authorization

This product requires a veterinary authorization. Simply provide your vet’s information during checkout and we’ll follow up to confirm. If you have a copy of your authorization, you can expedite the process by taking a photo and emailing it to, or by faxing it to 1-800-619-7973.

  1. How To Order

See all items by Royal Canin Veterinary Diet

  • Item Number
  • Weight
    8.8 pounds
  • Brand
    Royal Canin
  • Breed Size
    Small Breeds, Medium Breeds, Large Breeds
  • Food Form
    Dry Food
  • Lifestage
  • Special Diet
    Sensitive Digestion, Pea-Free, Veterinary Diet
Nutritional Info

Brewers Rice, Chicken By-Product Meal, Corn, Chicken Fat, Wheat, Wheat Gluten, Dried Chicory Root, Natural Flavors, Salt, Vegetable Oil, Fish Oil, Calcium Sulfate, Potassium Chloride, Sodium Silico Aluminate, Fructooligosaccharides, Sodium Tripolyphosphate, Taurine, Dl-Methionine, 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, Marigold Extract (Tagetes Erecta L.), L-Lysine, Trace Minerals [Zinc Proteinate, Zinc Oxide, Ferrous Sulfate, Manganese Proteinate, Manganous Oxide, Copper Sulfate, Calcium Iodate, Sodium Selenite, Copper Proteinate], L-Tryptophan, Rosemary Extract, Preserved with Mixed Tocopherols and Citric Acid.

Caloric Content

3,698 kcal/kg, 355 kcal/cup

Guaranteed Analysis
Crude Protein23.0% min
Crude Fat14.0% min
Crude Fiber3.3% max
Moisture10.0% max
Methionine-cystine0.83% min
Tryptophan0.2% min
Pantothenic Acid75 mg/kg min
Niacin259 mg/kg min
Feeding Instructions
WeightTendency to become Overweight (Cup)Ideal Weight (Cup)
4.4 lbs3/81/2
6.6 lbs5/85/8
8.8 lbs3/47/8
13.2 lbs11 1/8
15.4 lbs1 1/81 1/4
17.6 lbs1 1/41 3/8
19.8 lbs1 3/81 1/2
22.0 lbs1 3/81 5/8
26.5 lbs1 5/81 7/8
30.9 lbs1 7/82 1/8
33.1 lbs1 7/82 1/4

It is recommended that your cat be fed 2 - 4 equal portions of the diet per day.

Transition Instructions

When changing to a new diet, gradually introduce the new food by mixing it with the previous food over a 5 - 7 day period.


Why should I buy Veterinary Diets online?

Shopping for Veterinary Diets is easy! Chewy experts are available 24/7 to answer your questions and guide you through the process. We offer competitive prices, free shipping on orders over $49, and more savings if you sign up for an Autoship subscription.

How do I order Veterinary Diets?

  1. Search our website for the diet your vet recommends, then add it to your cart. You can purchase your Veterinary Diets with any other goodies you need!
  2. At checkout, you’ll be asked for required information. Enter your pet’s name and your vet’s name & telephone number.
  3. Place your order, and we’ll take care of the rest!

How will you contact my vet?

Our Veterinary Diets team will personally contact your vet for approval. If your clinic needs more information from you or recommends a different diet, we’ll let you know immediately.

Does it help if I send you my veterinarian’s authorization?

Yes! If you have a paper copy of your vet’s authorization, email a picture to, start a chat, or fax it to 1-800-619-7973.

Can I use a veterinarian’s authorization if it was written by a veterinarian out of state?

Of course! We can accept valid authorizations from anywhere in the United States and Canada—that includes US territories, like Puerto Rico.

Why do I need a veterinarian’s authorization?

Veterinary Diets are formulated with the precise ingredients and nutrients needed to address specific medical issues. If you don’t have a paper authorization, no sweat—once you provide your vet’s information, our team will take over.

Can someone else (such as a caretaker or family member) place an order for my pet?

Yes, but we’ll need them to provide us with the full name of the pet’s owner’s name via phone, email or chat after the order is placed, so the clinic can locate your pet’s records when we contact them.

How can I help expedite my order?

Just follow these simple steps:

  1. Create your pet’s profile on
  2. If you have an Autoship scheduled, but you’re running low on your Veterinary Diets, contact us ahead of time to let us know if you have a new clinic or if any authorization information has changed.
  3. If you have an authorization handy, send it to us before you order—by sending an email to, starting a chat with one of our experts, or faxing us at 1-800-619-7973.

Do I need to set up a pet profile?

We recommend it, but it’s not required. You can create your pet’s profile by logging in at, hovering over your account, and choosing “pet profile.”

Do authorizations expire?

Yes. Your vet will tell us when your authorization will expire and how many times we can send before they’d like you to check back in with them.

Can I set up automatic refills?

Yep! Sign up for Autoship and we’ll automatically ship your Veterinary Diets for as long as your authorization allows. If you run out of refills, or your authorization expires, we’ll automatically contact your vet for a new authorization. If we hit any bumps in the road, we’ll let you know right away.

What if I have more questions? How can I reach the Veterinary Diets team at Chewy?

Email us at, start a chat on, or call us anytime at 1-800-672-4399. We’re here for you 24/7.

Rating: 4.4 of 5 stars 35 Reviews 35 Reviews 4.5 out of 5 Stars

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94% Recommend

94% of reviewersrecommend this product

Rating: 4.4 of 5 stars 4.5 / 5

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35 Reviews

Showing 1-10 of 35 Reviews

  • 3 out of 5 stars


    By on

    Trying this new food for my dogs anxiety. Have not seen any progress yet as it's only been 7 days. But I did see that my dogs stool is on the hard side. Hoping she does not get constipated

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  • 1 out of 5 stars

    doesn't seem to have any effect

    By on

    Tried this on two different dogs, doesn't seem to help, having said that none of the calming treats, food, liquids work on them. Both dogs are a bit neurotic, we have to use drugs to calm them down so we only do it when it is absolutely necessary for them (i.e. 4th of July and such). No problems with Chewy, they have been fine, this just doesn't work for us, sorry to say. We use their low sugar food for a different dog and it works great.

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  • 5 out of 5 stars

    Quality product arrived quickly

    By on

    I have two pets on royal canin food! Its very high quality! Also the shipping was perfectly timed, and arrived right to my door with no hassle!

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  • 5 out of 5 stars

    Unusual damaged product packaging

    By on

    Always prompt delivery and pristine product. However, this order arrived with a tear in the product and some of the dry food spilled into the outer box.

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  • 3 out of 5 stars

    Prescription calm dog food-not calming

    By on

    My dog has tried various calming options, including drugs and this very expensive food, recommended by our vet. It didn't work for us. I believe it might just be her breed or personality. She does like the taste of the chicken flavor.

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  • 5 out of 5 stars

    Better than medications!

    By on

    Yes, it is a bit expensive but it is helping our dog. The vet had him on meds that just took away his personality. This and another supplement has help him to get off of the meds and be himself with much less anxiety.

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  • 5 out of 5 stars

    Excellent food for my pups.

    By on

    My dogs just love this food. They gobble it up even my picky one.

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  • 5 out of 5 stars

    I don’t think anything will calm down my Nina!

    By on

    My 2 year old Cavalier King Charles Spaniel suffers from separation anxiety and a willful disposition. I love her, however, it appears that nothing will calm her down. I don’t blame this on the product. It’s just the way she is.

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  • 3 out of 5 stars

    First time ordering

    By on

    Giving this a 3 for now as this is the first time using this product. I hope it works and calms down my IG. She is a rescue. It took a year for her to get around men and strangers and has always been a very nervous dog, especially if I am out of her site(I could be in the next room and she would go nuts). My other 4 are not, so it isnt the breed.

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  • 5 out of 5 stars

    I feel better!

    By on

    I have had some anxiety issues. But Chewy helped me get some relief, quick! I eat this as "croutons" on my regular food, to give me a bit of peace from my racing mind. Thank you! Love, Annie the Rescue Golden Retriever

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