Nutritional management of feline chronic enteropathy with evolving dietary response and long-term stabilization

A 5-year-old spayed female domestic shorthair cat was referred to the Clinical Nutrition Service at the Ontario Veterinary College (Guelph, Ontario) for management of chronic, nonresponsive enteropathy and recently diagnosed diabetes mellitus. The cat was presented with persistent diarrhea, perianal ulceration, weight loss, and poor glycemic control despite treatment with prednisolone, cobalamin injections, a hydrolyzed diet, and short antimicrobial trials. Once hospitalized, the cat was transitioned to a high-protein, low-carbohydrate commercial veterinary therapeutic diet containing mixed protein sources. Nutritional support was initiated via a nasogastric tube but discontinued after 48 h when voluntary oral intake resumed. Clinical signs improved gradually over 5 d, blood glucose stabilized below the renal threshold, and insulin therapy was discontinued at discharge after 6 d of hospitalization. The commercial veterinary therapeutic diet was maintained, and psyllium husk was later added to improve stool quality. Soft stools persisted for several months, with normalization occurring only after targeted fiber supplementation was introduced alongside ongoing medical management. This case highlights the importance of individualized nutritional management in chronic enteropathy, as clinical response to dietary intervention may evolve over time and long-term stabilization may require alternative strategies beyond hydrolyzed-protein diets. Key clinical message: Dietary responsiveness in feline chronic enteropathy is highly individualized. Hydrolyzed-protein diets are commonly recommended, but responses may vary between cases. Sequential and sustained dietary trials, guided by clinical response, may be necessary to achieve durable remission.