Chronic enteropathy in dogs: why start with diet
4-year-old crossbreed with intermittent small bowel diarrhoea for 3 months. Good general condition, stable weight. Negative faecal tests after deworming with fenbendazole; bloodwork, albumin, TLI and cobalamin normal; abdominal ultrasound unremarkable.
What is the most appropriate next step?
chevron_right Show answer and explanation
A. Trial with a hydrolysed or novel protein diet for 2–3 weeks
Correct. Food-responsive enteropathy is the most common form in stable dogs, and improvement is usually seen within 1–2 weeks. It is cheap, safe and does not interfere with later diagnosis.
B. Endoscopy with biopsies before any treatment
It is indicated if the dietary trial fails or there are signs of severity (hypoalbuminaemia, marked weight loss). In a stable dog, most respond to diet first.
C. Empirical prednisolone at immunosuppressive dose
Steroids without a diagnosis can mask lymphoma and hinder interpretation of later biopsies. They are reserved for enteropathy that does not respond to diet.
D. Trial with tylosin or metronidazole for 3 weeks
An empirical antibiotic trial is no longer recommended as a routine step: the response is often transient, and it disrupts the microbiota and promotes resistance.
lightbulb Key takeaway
Chronic enteropathies are classified by response to treatment: food-responsive, antibiotic-responsive (a category falling out of use), immunosuppressant-responsive and non-responsive. If the diet works, keep it and consider a challenge; if not, obtain biopsies before immunosuppressing.
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Updated: October 31, 2026 · Educational content for veterinary professionals. It does not replace current clinical guidelines or the judgement of the attending veterinarian.