Understanding Coprophagia: Why Dogs Eat Cat Poop
If you've ever witnessed your dog indulging in a less-than-appetizing snack, you're not alone. The phenomenon of dogs eating cat poop, or coprophagia, is more common than you might think. But why do dogs engage in this behavior? Let's delve into the science behind this puzzling habit, exploring the potential reasons and what you can do to discourage it.
Instinctual Behavior: A Throwback to Their Ancestors
Dogs are descendants of wolves, and in the wild, coprophagia serves a purpose. Wolf pups learn to eat their mother's feces to consume partially digested food, which helps them survive in harsh environments. This instinctual behavior may carry over to our domesticated dogs, even though they have access to plenty of food.
Nutritional Deficiencies
While not the most appealing thought, nutritional deficiencies could be a driving factor behind coprophagia. Dogs may be drawn to cat poop due to its high protein content, as they might be lacking essential nutrients in their own diet. If your dog is eating cat poop, it might be a good idea to consult with your vet to rule out any potential nutritional imbalances.

Common Nutritional Deficiencies in Dogs
- Protein
- Fiber
- Fat
- Vitamins (B1, B6, B12, D, E)
- Minerals (calcium, phosphorus, magnesium, zinc)
Boredom and Anxiety
Just like humans, dogs can engage in unwanted behaviors when they're bored or anxious. If your dog is left alone for extended periods, they may turn to coprophagia as a way to pass the time or alleviate stress. Providing your dog with plenty of mental and physical stimulation can help deter this behavior.
Medical Conditions
In some cases, coprophagia can be a sign of an underlying medical condition. Dogs with digestive issues, such as malabsorption syndromes or pancreatic insufficiency, may eat cat poop to try and make up for what their bodies aren't absorbing. If your dog's coprophagia is accompanied by other unusual symptoms, it's essential to consult with your vet.
Dietary Habits and Household Factors
Certain dietary habits and household factors can also contribute to coprophagia. Dogs that are fed a raw diet may be more prone to this behavior, as they're used to consuming partially digested food. Additionally, if your cat uses a litter box, your dog might be attracted to the poop due to its accessibility and the strong scent.

Preventing Coprophagia: Tips for Pet Owners
- Keep cat litter boxes out of reach from your dog.
- Clean up after your cat promptly and regularly.
- Ensure your dog is receiving a balanced, complete diet.
- Provide plenty of mental and physical stimulation for your dog.
- Consult with your vet if you suspect an underlying medical condition.
While coprophagia can be a challenging behavior to address, understanding the potential reasons behind it can help you take steps to discourage it. By working with your vet and making some adjustments to your pet's environment and routine, you can help your dog kick this less-than-desirable habit.