What Is Coprophagia in Dogs?
Coprophagia is the technical term for feces eating. In dogs, this behavior can involve eating their own feces (autocoprophagia), feces from other dogs (intraspecific coprophagia), or feces from other species — particularly cats, rabbits, deer, and geese. While the behavior is alarming and repulsive to most owners, it is surprisingly common: studies estimate that approximately 24% of dogs engage in coprophagia at some point in their lives, with about 16% being classified as frequent stool eaters.
The behavior has multiple potential causes spanning nutrition, health, and psychology. Understanding the underlying reason in your specific dog is the most important step toward effective management.
Why Do Dogs Eat Feces? Common Causes
Nutritional deficiencies: Dogs with poor digestion or nutrient absorption issues may seek to ‘recycle’ partially digested food. Conditions like exocrine pancreatic insufficiency (EPI) — where the pancreas doesn’t produce enough digestive enzymes — result in poorly digested food in feces that may seem nutritionally attractive. Enzyme or vitamin B deficiency has also been implicated.
Dietary insufficiency: Dogs fed inadequate amounts, low-quality food, or irregular mealtimes may eat feces out of genuine hunger. Coprophagia is more common in dogs from shelters, puppy mills, or overcrowded environments where food competition or restricted feeding may have occurred.
Attention-seeking behavior: If a puppy eats feces and gets a dramatic response from their owner (chasing, scolding, fussing), the behavior can be reinforced. The dog learns that eating poop gets attention — even negative attention is rewarding for a dog that craves interaction.
Anxiety and stress: Coprophagia can develop in dogs with separation anxiety or those kept in confined spaces without adequate stimulation. It may represent displacement behavior — a response to frustration or boredom.
Instinct in mothers: Mother dogs frequently eat puppy feces during the neonatal period — this is entirely normal, instinctive behavior that keeps the den clean and prevents predator attraction. Puppies may learn this behavior from their mothers.
Other species’ feces: Cat and rabbit feces are particularly attractive because of their high protein and fat content. Dog digestive systems don’t extract all nutrients from these food sources, so the feces still contain appealing compounds.
Is Coprophagia Dangerous?
Eating feces carries several health risks. Feces can harbor intestinal parasites (roundworms, hookworms, giardia, coccidia), bacteria (Salmonella, Campylobacter, E. coli), viruses (parvovirus, coronavirus), and toxins from ingested medications or plants. The risk is highest from eating feces of unknown dogs or wildlife; the risk from eating their own fresh feces is lower but not zero.
Dogs that eat feces can also transmit zoonotic parasites to humans through normal dog-human contact. This is an additional reason to address the behavior promptly and maintain regular parasite prevention.
How to Stop Your Dog Eating Feces
Rule out medical causes first: Take your dog to the vet for a check-up and fecal test. If EPI, malabsorption issues, or parasites are identified, treating the underlying problem often resolves coprophagia without behavior modification.
Improve diet quality: Feed a nutritionally complete, high-quality diet in appropriate amounts. Consider adding a digestive enzyme supplement. Some owners report success with vitamin B supplements, though evidence is anecdotal.
Environmental management: Pick up feces immediately and consistently — the less opportunity to engage in the behavior, the better. Supervise outdoor time and use a long leash if needed. Clean the litter box before allowing dogs access to it.
Avoid punishing the behavior: Scolding or chasing a dog for eating feces often reinforces the behavior through attention. Practice an interrupter cue (‘leave it’ or ‘come’) trained with positive reinforcement, and calmly redirect.
Taste deterrent products: Supplements like For-Bid (yucca-based) or products added to food to make feces taste aversive have mixed evidence, but some owners find them helpful when combined with management. They work best on autocoprophagia (own feces) and are less effective against other species’ feces.
When to Consult a Veterinarian or Behaviorist
Consult your vet if: coprophagia is a new behavior in an adult dog (rule out medical causes); it’s accompanied by weight loss, diarrhea, or vomiting; or basic management hasn’t helped after several weeks. A certified applied animal behaviorist (CAAB) or board-certified veterinary behaviorist (DACVB) can help if the behavior appears anxiety-driven or deeply habitual.
Patience and consistency are essential. For many dogs, coprophagia is a long-standing habit that takes weeks to months of management to extinguish. The combination of medical workup, diet optimization, environmental prevention, and positive reinforcement training gives the best results.