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Concerns For
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Species affected: Cats, Dogs
Background: Causes of chronic constipation in dogs and cats include dehydration (may be secondary to renal disease), obstruction, dietary indiscretion and occasionally, colitis.
Symptoms: May include pain and difficulty with defecation.
Diagnostics: Palpation may reveal a feces-distended colon.
Special Notes:
Some cases are complicated by long-term effects of a highly-processed or cooked diet that is low in roughage, lack of exercise, inability to eliminate at will, and confinement. Cats have a unique condition, megacolon, which is a functional deficit of colonic smooth muscle. The use of fiber may worsen the condition of megacolon.
Principles for Supplementation: Ideally, dogs and cats should be gradually switched to a natural diet containing meat and vegetables, or a high-quality canned food. Some animals may need long-term fiber supplementation. Digestive herbs and variety in the diet may help.


Formulas: Dosage: Mechanism/Purpose:

Canned pumpkin

Cats: ¼-1 tsp/meal
Dogs: ½-4 tbsp/meal

Palatable source of insoluble fiber.


1 capsule per 20 lb bid or
1 scoop per 20 lb bid

Help keep digestion in peak condition.


Cats: ½-1 capsule sid
Dogs: 1 capsule/15 lb sid

Support enterocytes; improve local immune function.

Herbal Bulk12

Cats: approx ¼ tsp/meal (titrate to effective dose)
Dogs: 1 tsp/50 lb/meal

Source of soluble fiber.

Section 1 - Canine and Feline Index of Pages


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