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What Is Coprophagia and Why Dogs Do It
Coprophagia is the clinical term for a dog eating feces — their own, another dog's, or another animal's. It sounds gross to us, but it's a surprisingly common behavior in dogs. Studies estimate that up to 16% of dogs do it regularly, and most will try it at least once.
First, let's clear up a myth: your dog isn't doing this to upset you. Dogs don't have the same disgust response around feces that humans do. To a dog, stool can smell interesting, taste like undigested food, or simply be something to investigate with their mouth.
The behavior shows up for a mix of reasons — medical, dietary, behavioral, and developmental. Some causes are easy to fix, and others need a deeper look. The good news is that almost every case of coprophagia improves when you address the root cause instead of just punishing the behavior.
Quick reality check: Coprophagia is common, usually treatable, and rarely a sign of a "bad" dog. Stay calm and focus on the cause — not the symptom.
Common Causes: Medical, Behavioral, and Dietary
Dogs eat poop for a range of reasons, and figuring out which one applies to your dog is the first step to fixing it. Here are the most common causes I see in practice:
Medical causes: Conditions like malabsorption, exocrine pancreatic insufficiency, parasites, diabetes, and thyroid disorders can make a dog feel constantly hungry or leave undigested nutrients in the stool. If your dog suddenly starts eating feces as an adult, a vet visit should be your first move.
Dietary causes: Low-quality food, underfeeding, or food that passes through too quickly can leave nutrients in the stool that your dog tries to reabsorb. Some dogs on restrictive diets or limited-ingredient foods develop coprophagia because they're not getting enough of something.
Behavioral causes: Boredom, anxiety, attention-seeking, and stress all play a role. A dog left alone in a yard with nothing to do will find entertainment — and sometimes that means eating feces. Dogs who've been punished for eliminating in the house may eat the evidence to avoid scolding.
Instinctive causes: Mother dogs clean their puppies by eating their feces for the first few weeks. Some puppies pick up the behavior from watching their mother. In multi-dog households, a submissive dog may eat another dog's stool as a social behavior gone wrong.
- Parasites — worms steal nutrients and keep your dog hungry
- Malabsorption — the gut doesn't absorb nutrients properly
- Underfeeding — your dog simply isn't getting enough calories
- Boredom — a yard with poop and nothing to do is a recipe for trouble
- Anxiety — stress drives compulsive behaviors, including coprophagia
Puppy Coprophagia vs Adult-Onset Coprophagia
Puppies explore the world with their mouths, and many try eating feces out of curiosity. Most outgrow it by 9 to 12 months as their digestive systems mature and they lose interest. Puppy coprophagia is usually behavioral and resolves with basic management — clean up promptly, redirect attention, and reward good choices.
Adult-onset coprophagia is different. When a dog who's never shown interest in feces suddenly starts eating them, it's a red flag. The most likely culprits are medical — parasites, malabsorption, or a new condition like diabetes or thyroid imbalance. Don't assume it's a training problem until your vet has ruled out health issues.
The approach differs too. For puppies, focus on management and training. For adults, start with a full vet workup: blood panel, fecal exam, and a diet review. Once you've cleared the medical side, you can layer in behavioral solutions.
Age matters: Puppy coprophagia is common and usually self-limiting. Adult-onset coprophagia needs a vet visit first — don't skip this step.
How to Stop It: Management and Training Steps
Stopping coprophagia starts with management — removing the opportunity — and then layering in training. Here's the step-by-step process I use with clients:
Step 1: Clean up immediately. Pick up every stool in your yard the moment your dog eliminates. If you can't be out there every time, leash your dog for potty breaks and clean up before letting them loose. Removing the opportunity breaks the habit loop faster than any other intervention.
Step 2: Teach a solid leave-it cue. Practice the leave-it command with low-value items first — a piece of kibble under your shoe, a toy on the floor. Reward your dog heavily for looking at you instead of the item. Once it's reliable indoors, proof it outdoors near stool. Keep your dog on a long line so you can redirect if they try.
Step 3: Reward check-ins. On walks, reward your dog every time they voluntarily look at you or return to your side. A dog who's checking in with you isn't scanning the ground for snacks. This builds a habit of attention that competes directly with coprophagia.
Step 4: Increase supervision. Don't leave your dog unattended in the yard during the training phase. If you can't watch them, crate them or bring them inside. Freedom comes back gradually as the leave-it cue gets reliable.
Pro tip: Don't chase your dog to get poop away from them. Chasing turns it into a game and teaches your dog to swallow fast or run. Instead, trade them for a high-value treat — call their name, show the treat, and reward the trade.
Step 5: Manage on walks. Keep your dog on a 4-6 foot leash in areas with animal feces — horse trails, parks with geese, neighborhoods with stray cats. Use a head halter if your dog dives for feces before you can react. Walk in cleaner areas until the leave-it cue is solid.
Step 6: Break the cycle. If your dog has been eating poop for months, the behavior is now a habit. Habits take consistency to break. Commit to 2-3 weeks of zero-access management while you train — every time your dog gets to the stool, the habit gets reinforced. Every time you redirect successfully, it gets weaker.
Diet and Supplements That Can Help
Diet plays a bigger role in coprophagia than most owners realize. If your dog's food isn't meeting their nutritional needs, their body will seek nutrients elsewhere — including in stool. Start by talking to your vet about your dog's current food and whether it fits their age, breed, and activity level.
Switching to a high-quality food with adequate protein and digestible fiber can reduce coprophagia within a few weeks. Look for foods with a named animal protein as the first ingredient and avoid fillers that bulk up stool without adding nutrition. Your vet can recommend specific brands or formulas suited to your dog.
Some dogs benefit from digestive enzymes or probiotics. Enzyme supplements help break down food more completely, so fewer nutrients pass into the stool. Probiotics support gut health and can improve the balance of bacteria in your dog's digestive tract. Ask your vet which products have evidence behind them — not all supplements are created equal.
Home remedies like pineapple, pumpkin puree, or meat tenderizer are popular, but the evidence is mixed. Pineapple contains bromelain, which may make stool taste bitter, but results vary. Plain pumpkin puree adds fiber and can firm up stool. Try these as temporary aids while you address the root cause, not as permanent fixes.
- High-quality food with named protein first
- Digestive enzyme supplement (vet-recommended)
- Probiotic for gut health
- Plain pumpkin puree for added fiber
- Fresh pineapple as a bitter-deterrent aid
When to Call Your Vet
Not every case of coprophagia needs a vet visit, but some absolutely do. Call your vet if coprophagia starts suddenly in an adult dog, especially if it's paired with weight loss, increased appetite, vomiting, diarrhea, or lethargy. These signs point to a medical issue that won't resolve with training alone.
Schedule a visit if your dog is eating another animal's feces — cat litter boxes, horse manure, goose droppings — because these can carry parasites and diseases. Your vet should run a fecal exam and deworm your dog if needed. Even if your dog is only eating their own stool, a baseline blood panel can rule out thyroid issues, diabetes, and malabsorption.
If your vet clears your dog medically and the behavior persists, ask about a referral to a certified behavior consultant or veterinary behaviorist. Chronic coprophagia that doesn't respond to management, diet changes, and training may have an anxiety or compulsive component that needs professional support.
Don't wait if: Your dog eats another animal's feces and shows vomiting, diarrhea, or lethargy within 48 hours. Parasites and infections can hit fast — early treatment is easier and cheaper than waiting.
Frequently Asked Questions
Is it dangerous if my dog eats poop?
Eating their own stool is usually not harmful, but eating other dogs' or animals' feces can transmit parasites, viruses like parvovirus, and medications. Have your vet run a fecal exam and deworm your dog regularly if coprophagia is ongoing.
Will my dog outgrow eating poop?
Many puppies outgrow coprophagia by 9 to 12 months as their digestive systems mature. Adult-onset coprophagia usually signals an underlying issue — diet, stress, boredom, or a medical condition — that won't resolve on its own without intervention.
Does pineapple stop dogs from eating poop?
Pineapple contains bromelain, which may make stool taste bitter to dogs. Some owners report success, but the evidence is anecdotal. It works best as a temporary aid while you address the root cause — diet, training, or medical issues — not as a permanent fix.
Can coprophagia be caused by a medical problem?
Yes. Conditions like malabsorption, pancreatic insufficiency, parasites, diabetes, and thyroid disorders can drive dogs to eat stool. If coprophagia starts suddenly in an adult dog, schedule a vet visit to rule out medical causes before trying behavior solutions.
Tonight, grab a leash and head outside with your dog. Pick up every stool the moment it hits the ground — no exceptions for the next two weeks. Tomorrow, call your vet and ask about a diet review and a fecal exam. If your dog is an adult and this behavior is new, book that appointment this week. You've got the management plan, the training steps, and the dietary questions ready — now put them to work.
