Royal Canin Veterinary Diet Gastrointestinal Fiber Response Dry Dog Food

  • List Price:


  • Price:

    $57.59 FREE 1-2 Day Shipping on this item

  • You Save:

    $6.40 (10%)

In stock
17.6-lb bag
  • 8.8-lb bag
  • 17.6-lb bag
- Quantity +

This prescription item requires vet approval. Details



The gastrointestinal tract includes the esophagus, stomach, small intestine, large intestine, and colon. Therefore, gastrointestinal disease is defined as any abnormality involving one or more of these structures. By feeding your pet a diet that contains precise amounts of key nutrients, you can not only help minimize vomiting, diarrhea,or constipation, you can also help to support and improve the function of the gastrointestinal structures. This gastrointestinal diet is formulated to help maintain the balance of gastrointestinal microflora and intestinal mucosal integrity.

Key Benefits

  • Canine Gastrointestinal Fiber Response is a highly digestible, palatable, complete and balanced dry dog food
  • Includes an optimal blend of insoluble and soluble fiber to help regulate intestinal transit.
  • High level of insoluble fiber aids in the management of fiber responsive colitis and diarrhea
  • Contains a combination of highly digestible proteins, prebiotics and EPA & DHA helps support digestive health
  • Developed by nutritionists and veterinarians, this kibble tastes great and nutritionally supports your dog's healthy digestion

This product requires a veterinary prescription. Simply provide your vet's information during checkout and we'll follow up to confirm the prescription, or email a copy of your prescription to rx@chewy.com and we'll get your order out right away.

See all items by Royal Canin Veterinary Diet

  • Item Number
  • Weight
    17.6 pounds
  • Brand
    Royal Canin
  • Breed Size
    All Breeds, Small Breeds, Medium Breeds, Large Breeds
  • Food Form
    Dry Food
  • Lifestage
  • Made in
    United States
  • Special Diet
    Sensitive Digestion, Prescription Food

Nutritional Info


Chicken By-Product Meal, Brewers Rice, Chicken Fat, Powdered Cellulose, Rice Hulls, Corn, Wheat, Corn Gluten Meal, Natural Flavors, Wheat Gluten, Dried Plain Beet Pulp, Fish Oil, Monocalcium Phosphate, Grain Distillers Dried Yeast, Psyllium Seed Husk, Sodium Silico Aluminate, Potassium Chloride, Salt, Calcium Carbonate, Fructooligosaccharides, L-Lysine, Vegetable Oil, Dl-Methionine, Hydrolyzed Yeast, Taurine, Choline Chloride, Vitamins [Dl-Alpha Tocopherol Acetate (Source of Vitamin E), L-Ascorbyl-2-Polyphosphate (Source of Vitamin C), Biotin, D-Calcium Pantothenate, Vitamin A Acetate, Niacin Supplement, Pyridoxine Hydrochloride (Vitamin B6), Thiamine Mononitrate (Vitamin B1), Vitamin B12 Supplement, Riboflavin Supplement, Folic Acid, Vitamin D3 Supplement], 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], Rosemary Extract, Preserved with Mixed Tocopherols and Citric Acid.

Caloric Content

3, 334 kcal/kg, 287 kcal/cup

Guaranteed Analysis
Crude Protein 21.0% min
Crude Fat 14.0% min
Crude Fiber 12.5% max
Moisture 10.0% max
Eicosapentaenoic Acid (EPA) 0.18% min
Docosahexaenoic Acid (DHA) 0.08% min

Feeding Instructions

Weight Tendency to become Overweight - Daily Amount (cup) Ideal Weight - Daily Amount (cup)
4.4 lbs 5/8 5/8
11.0 lbs 1 1/8 1 3/8
22.0 lbs 2 2 1/4
33.1 lbs 2 5/8 3
44.1 lbs 3 1/4 3 3/4
55.1 lbs 3 7/8 4 1/2
66.1 lbs 4 1/2 5 1/8
77.2 lbs 5 5 3/4
88.2 lbs 5 1/2 6 3/8
99.2 lbs 6 7
110.2 lbs 6 1/2 7 1/2
132.3 lbs 7 1/2 8 5/8

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

Ensure fresh drinking water is available at all times.

Store this product in a cool, dry place.

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.

Customer Reviews

131 reviews 131 Reviews 4.9 out of 5 Stars

98% Recommend

98% of reviewersrecommend this product

4.9 / 5

You've Already Reviewed This Item

Showing 1-10 of 131 Reviews

Sort by:
Filter by:
  • Quick Shipping, Quality Product

    By on

    I bought my first bag of Royal Canin GI Support through our vet, but it was priced about $10. more expensive there. When it was time for another bag I found Chewy, but I wasn't sure how prescription dog food would work. It was super easy. Chewy contacted my vet to confirm the prescription the morning after I ordered (I ordered late at night) and had it shipped to me the day after that. It was amazingly fast, the bag was sealed like it is at the vet. The GI Fiber support has been amazing for my puppy that only had loose stools before this food. Now we mix half GI Support and half Open Farm and he is still doing amazing. Definitely worth it if you have a dog with loose stools.

    You liked it! Something went wrong. Please try again later. Report
  • Royal Canin Veterinary Diet

    By on

    This dog food is great for standard poodles. I have had two standard poodles and they both had problems with digestion and acid reflex. Sense I have been feeding our current standard poodle this food I have not had any type of issues with him. He has been eating it for about 3 yrs now and loves it. I tried all the other expensive brands and nothing worked until this dog food. Royal Canin is the best . I feed it to both my dogs. Puppy food for the goldendoodle and veterinary diet for my 10 year old standard poodle. Wish I knew about it years ago so our first standard didn't have to suffer with digestion problems.

    You liked it! Something went wrong. Please try again later. Report
  • Chewy.com is amazing!

    By on

    I have been using Chewy.com for my regular dog food and joint supplements. My vet recommended this food to firm up stool. It worked. It does change the stool color so don't be alarmed. Chewy.com received my order, contacted my vet for the prescription and got the prescription food shipped out all in one day. What service! I never thought I could get a prescription dog food from Chewy.com due to the immediate need. Chewy.com, you treated this like it was important and that means the world to me. Thank you!!!

    You liked it! Something went wrong. Please try again later. Report
  • Fantastic product!

    By on

    Was previously using IAMS Veterinary Diet Low Residue and it was amazing. Sad to see it discontinued but this product was prescribed to me as a substitute. It works great and my dogs love it. Any time they are in a stressful situation (boarding kennel), I am sure to put them on this product to help their stomachs. Highly recommend for dogs with stomach upset issues. Thank you RC!

    You liked it! Something went wrong. Please try again later. Report
  • Forget the stores and stay with your vet.

    By on

    My cocker has had a protein disorder (can't spell or pronounce it) but since going on this food has had a normal albumen level every testing, (quarterly). I stopped in this new pet store out of curiosity and was nearly accosted by a sales rep. loudly lecturing me about the perils of using a vet prescribed food. The vet is getting kickbacks and the food is no good. Needless to say, no sale there. It was like someone trying to sell you a time share!! Desperation, no doubt.

    You liked it! Something went wrong. Please try again later. Report
  • Excellent!!!

    By on

    I love this food! Every 3 to 6 weeks my baby would scoot till I got her glands expressed. She's been on this food for about 3 months now and I've had her checked because she's not scooting and she is able to do it naturally. Also she hasn't had any allergies since changing to this food. It's been a miracle food for her. Thank you for royal canin!!

    You liked it! Something went wrong. Please try again later. Report
  • Best idea and service!

    By on

    Best idea in a while! No more "oops I forgot to get dog food on the way home." Saves time, trouble and they always have the food my vet prescribes for my 3 girls. I love that it's delivered in a sturdy box waiting at my front door, AND it's also cheaper than the pet store where I've been buying it for 2 years. Can't beat that!

    You liked it! Something went wrong. Please try again later. Report
  • Royal Canin Fiber Response

    By on

    Chewy.com is amazing! I was stuck in the house due to a winter storm and unable to make it to the vets office to grab more of our dogs food that requires a prescription. They contacted the vets office and got the information needed to complete the order & 2 days later it was delivered to our door.

    You liked it! Something went wrong. Please try again later. Report
  • Great food

    By on

    Our boxer was routinely having a gurgley belly and throwing up. We switched to this food at the advice from our vet. It’s been over a month and she has had no stomach issues and is happier and healthier than she has been in along time!!! A little expensive but well worth it!!!

    You liked it! Something went wrong. Please try again later. Report
  • Happy with Chewy!

    By on

    Good price! Fast delivery! My vet said your food wasn't ant cheaper than what they sell it for. But ,it is! Plus I don't have to go to the vets to pick up. I also don't have to call to see whether they have it. Thanks

    You liked it! Something went wrong. Please try again later. Report