Royal Canin Veterinary Diet Gastrointestinal Fiber Response Dry Cat Food, 8.8-lb bag

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Product Description

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. This diet is also formulated to help maintain the balance of gastrointestinal microflora and intestinal mucosal integrity

Key Benefits

  • Eicosapentaenoic and docosahexaenoic acids help nourish the digestive system
  • Specific fiber content supports healthy digestive transit and eases defecation
  • Feline Gastrointestinal Fiber Response promotes a urinary environment unfavorable to the development of both struvite and calcium oxalate crystals
  • Moderate levels of soluble fiber
  • Highly digestible protein sources

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 48747
Weight 8.8 pounds
Special Diet
  • Sensitive Digestion
  • Prescription Food
  • Adult
Food Form
  • Dry Food
  • Royal Canin
Made in
  • United States

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Customer Reviews

Rated 4.9 out of 5 by 159 reviewers.
Rated 5 out of 5 by My cat is so much happier! My 14 and a half year old male kitty has been struggling with megacolon for years. He was on a special low residue diet, miralax, cisapride and misoprostol but still needed enemas every once in a while. However, this is no longer the case. After getting on this Royal Canine product, he is very regular and no longer on any medicines. His brother, who has no intestinal problems, has become even more regular than before (2x/day!). One side effect - the food is making them both drink a lot of water and they are urinating more frequently than before (and thus I am cleaning the litter box more often). However, it is nothing worrisome or unhealthy. If more frequent peeing is the consequence, I'll take it any day over all the trauma of dealing with megacolon. Thank you, Royal Canine! May 2, 2016
Rated 5 out of 5 by Seems good so far Started introducing it to me 2 devons and 1 sphynx they seem to be tolerating well so far. I hope it continues to work as the other food is very pricey. (They are totally worth it) but gives them a little variety. May 25, 2016
Rated 5 out of 5 by Worked wonders for my kitty! My 8lb 8 year old cat was constantly vomiting- all other medical issues ruled out - she was consistently constipated. She was on lactulose and cisapride and once on this food - she's now off all Meds. Her stool is a bit loose but that is much better than being blocked and vomiting! On the pricier side but worth it. Highly recommend :) May 20, 2016
Rated 4 out of 5 by Effective prescription food I am not a fan of any of the prescription cat foods. However, after trying multiple natural remedies and diets with my senior cat to relieve his severe constipation, this Gastro formula has really worked. He is a happy cat so I am a happy cat mom. I would give it 5 stars if I didn't dislike prescription foods in general. May 19, 2016
Rated 5 out of 5 by Love Auto Ship I love the fact that I can get my cat's prescription diet delivered to my door from! The shipping is speedy and I love the fact that I can have auto ship! No more last minute trips to the pet food store, especially when it is prescription and it cannot be purchased just anywhere. Chewy is saving me time, money and the convenience is terrific. Wish I had known this sooner. May 17, 2016
Rated 5 out of 5 by This product saved my cat's life My cat has had elimination issues for years and the standard treatment provided no success. After I got a second opinion, the new vet put him on cisapride, laculose and a high fiber kibble. It was not until we changed his food to the fiber response that he began eliminating normally. I am grateful that we found this great product which he loves to eat!! May 13, 2016
Rated 5 out of 5 by This product saved my cat! I had to take my cat to the vet because she could not void and was in pain. She was kept overnight and was treated at the vet flushing her completely out. They recommended royal canin. She loves the food and her bowel movements improved greatly. She is doing great. Thank you. I could have lost my kitty. May 10, 2016
Rated 5 out of 5 by This was the answer to my prayers For the past 2 years my 16 year old cat had pooping issues where she would try to go in the litter box but would get blocked up. The vet said it had to do with stretching of her inner walls. We tried different foods, dry and wet, mirilax, laxatone...every 2-4 weeks we were going to the vet to take care of the problem. As a last resort, I tried this cat food. She has not had a problem since! It has been 6 months. Don't give up on hope. Try this!! April 30, 2016
  • 2016-05-30 T05:35:44.363-05:00
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