Free Shipping on orders $49+

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

List Price: $50.39
Price: $41.99 & FREE 1-2 Day Shipping at $49
You Save: $8.40 (17%)
In Stock

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 ships directly from Royal Canin and will arrive separately from other products ordered from This product will not be shipped until a copy of a valid prescription authorization is faxed to 786-528-6088 or e-mailed to

See all items by Royal Canin Veterinary Diet »

Item Number 48747
Weight 8.8 pounds
Special Diet
  • Prescription Food
  • Adult
Food Form
  • Dry Food
  • Royal Canin
Country of Origin
  • United States

Pet lovers who bought this item also bought...

Important Information


Chicken by-product meal, chicken fat, brown rice, brewers rice, corn gluten meal, wheat gluten, powdered cellulose, natural flavors, egg product, dried plain beet pulp, potassium chloride, fish oil, sodium silico aluminate, grain distillers dried yeast, calcium sulfate, sodium bisulfate, DL-methionine, psyllium seed husk, salt, fructooligosaccharides, monosodium phosphate, vegetable oil, hydrolyzed yeast, taurine, choline chloride, L-lysine, magnesium oxide, vitamins [DL-alpha tocopherol acetate (source of vitamin E), L-ascorbyl-2-polyphosphate (source of vitamin C), niacin supplement, biotin, D-calcium pantothenate, riboflavin supplement, pyridoxine hydrochloride (vitamin B6), vitamin A acetate, thiamine mononitrate (vitamin B1), vitamin B12 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.

Customer Ratings & Reviews

Rated 5 out of 5 by 110 reviewers.
Rated 5 out of 5 by This food saved Isaac's life! Our now 5 year old Mainecoon mix, Isaac was recently diagnosed with feline megacolon. He had a few issues with constipation the first couple years of his life but it resolved with treatment both times and life went on as normal. However this past August he got really sick and was just not responding to the medicine or recommend diet changes (lactulous/cisapride) he had to have sedated extraction enemas every month from August-November (and then twice in just a couple weeks in November) After his last procedure in November we were resigned to the fact that we were probably going to lose our boy. Since he was not responding to his treatment and we had already spent a couple thousand dollars on it. The vet suggested we try this food as a last effort and the results were astounding! Two days later Isaac made a real poopy on his own, for the first time in months! I have never been so happy to see poopy in my entire life. ;-) He also started acting like a kitten again, running through the house, playing with his toys and climbing on everything! He is now completely off all his medicine and eats only this food. He loves it and has regular (although massive) bowel movements now. I have no doubt this food saved Isaac's left and made him a happy boy again. February 8, 2014
Rated 5 out of 5 by This product keeps your cats regular. This product is fantastic! I give it to all my 3 cats and it keeps them all regular. My Bubba almost died from constipation and with medication and this food he no longer has a problem. I can't recommend this product enough. April 25, 2013
Rated 5 out of 5 by This food has saved us My cat had blockage issues for years. It caused him severe pain & cost me thousands of dollars. Once this food came out & we switched him over he has not has another bout since. Thank you! March 29, 2013
Rated 5 out of 5 by Great for cats with mega colon. When my cat was diagnosed with mega colon, my vet recommended this food. She has since had no constipation or vomiting. Just beware, what you find in your litter box may make you think you own a mastiff rather than a cat. August 18, 2013
Rated 5 out of 5 by Poops at last! We have a cat that has had chronic constipation all his life! This is the only catfood that has ever helped him, and he is 15 now. He is no longer constipated AND he likes the food. It seems less greasy that some of the other RC foods we have tried and also goes down with with our other cat who has the opposite problem. Really good catfood, this Royal Canin Fiber Response. December 15, 2012
Rated 5 out of 5 by Extremely effective I have a cat that was plaugued with consipation, bowl blockages and was continually straining to try to move her bowels for five years. Was forced to get expensive enemas every few months because she just could't move her bowels herself. The internist at my vet recommended this food. It worked instantly. She was moving daily but way too soft. So I cut 50/50 with RC fiber Response and RC Special 33 for sensative stomach, and NO MORE TROUBLE. Her mood has changed to. She is clearly more comfortable and tolerant of the other cats. I didn't realize how badly her trouble was effecting her mood until I put her on this food. She is a different cat. And, it is fine for the other cats too (few contraindications) and they all like it an eat it. May 13, 2013
Rated 5 out of 5 by Excellent Hi have a long hair part Maine Coon cat, and this has really helped her with hairballs. This food helps pass it through her digestive system instead of them throwing the hairballs up. You can brush and brush, and trim, however, you can never do it enough. This has been a great thing for her, and I highly recommend talking to your vet about it. Thanks, May 27, 2013
Rated 5 out of 5 Wonderful!!! So my cat, Levi Bentley, had been experiencing severe constipation and he couldn't tell me!!! Okay, so after taking him to the Vet, it was recommended to give him dairy milk. Dairy milk was not really helping him to go 'regular' but it was working. A work colleague of mine has a British Blue with the same issue and he gave me a huge ziplock back filled with RC Vet Diet GFR for Levi to sample. I was afraid Levi would hate the food since he's the King of finicky eaters. Turned out that he loved this food and it has helped him get back on his regular bathroom schedule. Thanks RC, Levi appreciates this diet a whole lot! March 20, 2013
  • 2015-11-26 T09:54:22.227-06:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_110, tr_110
  • loc_en_US, sid_46153, prod, sort_default
2 3 4 5 next>>
Questions? Call our friendly customer service team anytime. We're here 24 hours a day! 1-800-67-CHEWY (672-4399)