Welcome To RoyalCanin, here are some of keyboard shortcuts to help you navigate our site:
use tab key to navigate forward.
use shift + tab to navigate backwords.
Gastrointestinal High Fiber for Dogs
This diet is recommended for dogs with fiber-responsive conditions like large bowel diarrhea, colitis, and constipation. It includes highly digestible protein and an appropriate calorie content to help maintain a healthy body weight. It’s high in fiber with an optimal blend of fibers to help regulate intestinal transit and prebiotic fibers to support the microbiome. The dry diet contains around 4 times as much fiber as Royal Canin Gastrointestinal. *This diet is clinically shown to:
- Improve chronic enteropathy (CE) signs in as little as 15 days¹
- Owner-reported improved stool consistency and reduce stool frequency within 15 days¹
- Owner-reported improved quality of life in dogs¹
Gastrointestinal Fiber Responses for Cats
This diet is recommended for cats that have difficulty passing stools. It includes highly digestible protein and an appropriate calorie content to help maintain a healthy body weight. It’s moderate in fiber content with high levels of psyllium to increase fecal moisture content and support regular bowel movements.2 Plus, it includes prebiotics for microbiome support, and it promotes a urinary environment unfavorable to the development of both struvite and calcium oxalate crystals.This diet is clinically proven to improve to:
- Improve constipation in cats 3-5
- Support long-term remission in 93% of cases 3,4
- Support ideal stool quality and regularity 3
Learn more about the science behind our diets in the detailer below!
Explore Our Full Range of Gastrointestinal Formulas
Do You Have Patients That Need Extra
Gut Health Support?
Precise nutrition is foundational to supporting gastrointestinal health in cats and dogs, but sometimes they need extra support. Learn more about Royal Canin® Probiotic Supplements.
Resources for Clients
________________________________________________________________________________________________________________________________________________
Share these resources and tools with your clients to help support their learnings about gastrointestinal health.
Resources for Professionals
___________________________________________________________________________________________________________________________________________________
%20(2).jpg)
* Royal Canin Gastrointestinal High Fiber dry contains approximately 66 g/1000 kcal of total dietary fiber compared with 1 6 -19 g/ 1 000 kcal for Royal Canin Gastrointestinal and Royal Canin Gastrointestinal Moderate Calorie. †For cats with constipation and megacolon of non-obstructive origin.
1Royal Canin. Evaluation of the efficacy and tolerance of three GI prescription diets (GI, GI Moderate Calorie or GI High Fiber) for the control of recurrent, nonspecific enteropathies in dogs. Data on file. | 2Keller E, Laxalde J, Tranier N , et al. Psyllium husk powder increases defecation frequency and faecal score, bulk and moisture in healthy cats. J Feline Med Surg. 2024;26 (4):1098612X24123415. | 3Freiche V, Houston D, Weese H, et al. Uncontrolled study assessing the impact of a psyllium-enriched dry diet on faecal consistency in cats with constipation. J Feline Med Surg. 2011;13(12):903 – 11. | 4Royal Canin Gastrointestinal Fiber Response field study. Data on file. | 5Rochon J, Charles H , Biourge V, et al. EXPRESS: A psyllium-supplemented gastrointestinal diet is effective for the management of chronic constipation in cats: a 6-month controlled clinical trial. J Feline M ed Surg. 2026;0 (ja). doi:10.1177/1098612X261420519.