Why Do Dogs Eat Poop? Gut Health, Enzyme Deficiency & How to Stop It

You look away for two seconds in the backyard, and when you turn back, your dog is snacking on something that is definitely not a treat. If you've ever stood there wondering why do dogs eat poop, you're in good company. Almost every dog owner has been there.

Here's the quick answer. Poop eating is a common behavior, and for most dogs it's about instinct or habit, not a sign that something is wrong. Sometimes, though, it can point to a medical problem. Below, we'll cover the usual causes, what the research found, and a simple plan to help your dog stop eating poop.

Is It Normal for Dogs to Eat Poop?

Yes. As gross as it is, eating poop is a normal dog behavior. Vets even have a fancy name for it: coprophagia.

It's also more common than you might think. In a UC Davis study of about 3,000 dog owners, roughly 1 in 6 dogs were regular poop eaters.

Mother Dogs and Puppies

Mother dogs clean up after their newborn puppies for the first few weeks to keep the den clean. Puppies, meanwhile, explore the world with their mouths. According to the AKC, most puppies grow out of poop eating by about 9 months old.

The Wolf Theory

The UC Davis team noticed something interesting: most poop-eating dogs went for fresh poop, no more than two days old. Parasite eggs in poop usually take a couple of days to become a problem.

So the researchers think dogs may have inherited this habit from their wolf ancestors, who cleaned fresh waste out of the den before parasites could spread. Your dog might just be following some very old instincts. Still gross, but at least it makes sense.

Behavioral Causes: Why Most Dogs Eat Poop

For most dogs, poop eating comes down to behavior. Here are the most common triggers, based on guidance from the AKC and the UC Davis research:

• Boredom or isolation. Dogs left alone for long stretches or kept in small spaces are more likely to pick up the habit.

• Attention seeking. If poop eating gets a big reaction from you, your dog may decide it's a great way to get noticed.

• Anxiety or a new environment. A move, a new routine, or time in a busy shelter can all play a role.

• Punishment during house training. Dogs scolded for accidents may eat their poop to hide the evidence, which can turn into a stressful cycle.

• Learned behavior. Once a dog starts, the habit can stick, even after the original trigger is gone.

• Greedy eaters. Dogs in the study who ate poop were more often described as greedy eaters. Think of the dog who steals food off the counter.

• Multi dog households. Poop eating was more common in homes with more than one dog.

Medical Causes of Poop Eating

Sometimes a dog eats poop because something is going on inside. The AKC lists several medical causes that a veterinarian can check for:

• Intestinal parasites, which compete with your dog for nutrients

• Malabsorption, when the body has trouble absorbing nutrients from food

• Conditions that increase appetite, such as Cushing's disease, diabetes, or thyroid problems

• Certain medications, like steroids, that can make dogs extra hungry

• Underfeeding, or a diet that doesn't provide enough calories

Each of these is something your vet diagnoses, usually with a quick exam and some simple tests. If poop eating shows up out of the blue in an adult dog, it's worth a visit.

Behavioral vs. Medical Causes at a Glance

Cause	Signs	What to do
Puppy curiosity	Young dog, explores everything with their mouth	Clean up fast, train "leave it," be patient
Boredom or isolation	Long stretches alone, not much exercise	More walks, playtime, and puzzle toys
Attention seeking	Does it more when you react	Stay calm, redirect, reward good choices
Anxiety or stress	New home, new routine, past punishment	Keep routines steady, skip scolding
Medical problem	Sudden start, weight loss, bigger appetite, diarrhea	See your vet

Do Enzyme Deficiencies or Missing Nutrients Cause Poop Eating?

For most dogs, no. But there is one real medical condition worth knowing about.

Exocrine Pancreatic Insufficiency (EPI)

EPI is a condition where the pancreas doesn't make enough digestive enzymes. Without them, food isn't properly digested or absorbed. According to the Merck Veterinary Manual, the most common signs are eating a lot, weight loss, and diarrhea, often with pale, loose stools. And since the AKC lists malabsorption as a medical cause of poop eating, EPI is one reason a hungry dog might start.

EPI is diagnosed with a blood test and managed by your veterinarian. It's not something to guess at home or handle with a supplement alone, so if those signs sound familiar, call your vet.

What About Missing Nutrients?

Nutritional deficiencies are uncommon in dogs eating a complete and balanced diet. In fact, the UC Davis study found no clear link between a dog's diet and poop eating. So if your dog eats a quality food, their bowl probably isn't the problem.

Where Gut Health Fits In

Even though gut health isn't a magic fix for poop eating, healthy digestion is a great goal for every dog. When food is broken down and absorbed well, your dog gets more out of every meal. Our guide to gut health for dogs goes deeper, and these early signs of poor gut health are worth a look too.

Two supplements can support your dog's digestion as part of a bigger plan that includes training and management:

• Digestive enzymes. Enzyme Miracle® is a plant-based blend of digestive enzymes, including protease, amylase, lipase, cellulase, and bromelain, that supports the breakdown of food. If your dog has pancreatitis or pancreatic insufficiency, check with your vet first.

• Probiotics. Probiotic Miracle® provides six Lactobacillus and Bifidobacterium species plus an inulin prebiotic to support a healthy balance of gut bacteria.

Want both? The Miracle Pack® bundles Enzyme Miracle® and Probiotic Miracle® together. Both are unflavored powders you mix into food, and they're made for dogs and cats of all ages in a GMP-certified facility in the USA.

Shop The Miracle Pack®

Why Do Dogs Eat Cat Poop?

Cat poop is high in protein, and to a dog, it apparently tastes good. If you have a cat, the litter box can look like a snack bar.

The easiest fix is keeping the litter box out of your dog's reach. A baby gate, a covered box, or a self-cleaning box can all help. The same goes for poop from other animals in the yard or on walks, which is why a leash and a watchful eye go a long way.

Is Eating Poop Dangerous for Dogs?

It can be. Poop from other dogs, cats, or wildlife can carry intestinal parasites and bacteria that can make your dog sick. Other animals' poop may also contain traces of medications they're taking.

Your dog eating their own fresh poop is usually lower risk, but it's still a habit worth breaking. Keeping up with regular vet checkups and parasite screenings helps keep your dog's health on track.

How to Stop Your Dog From Eating Poop

Here's the honest truth: there's no instant fix. The UC Davis study found that food additives and tablets marketed for poop eating worked for only 0 to 2% of dogs. Management and training work best when you use them together and stay consistent. Here's a simple plan:

1. Clean up right away. The less poop is around, the fewer chances your dog has. It's the simplest way to cut down on chances.

2. Use a leash and teach "leave it." On walks, keep your dog close and reward them with a treat when they leave poop alone. Positive reinforcement works better than scolding.

3. Call your dog to you after they go. Reward them for coming over for a treat instead of turning around to investigate.

4. Keep the litter box out of reach. Gates and covered boxes make a big difference in homes with cats.

5. Add exercise and enrichment activities. Long walks, puzzle feeders, and playtime help with boredom.

6. Feed a balanced diet on a regular schedule. A consistent routine helps your dog feel satisfied.

7. Don't make a big reaction. Stay calm and redirect. Yelling can turn poop eating into an attention game or add stress.

8. Rule out medical causes. If the habit is new or comes with other symptoms, see your vet.

You'll also see taste aversion products that claim to make poop taste bad. You can try them, but don't count on them. The research found they rarely work.

When to Call Your Vet

Check in with your vet if you notice:

• Poop eating that starts suddenly in an adult dog

• Weight loss, even though your dog is eating plenty

• A sudden increase in appetite

• Diarrhea, vomiting, or other digestive issues

These can be signs of an underlying medical problem that needs professional advice.

Frequently Asked Questions

Why does my dog eat their own poop but not other dogs' poop?

Every dog is different. Some stick to their own poop out of habit or instinct, while others go for any poop they find. The UC Davis research found most poop eaters prefer fresh stool, no matter whose it is.

Will my puppy grow out of eating poop?

Most puppies do, usually by around 9 months old. Cleaning up quickly and rewarding good choices in the meantime helps keep it from becoming a long-term habit.

Do taste aversion products work?

Usually not. In the UC Davis study, products marketed to stop poop eating worked for very few dogs. Cleanup, supervision, and training are your best bets.

Can enzyme supplements stop poop eating?

Enzyme supplements support healthy digestion, but they aren't a proven fix for the behavior. Think of them as one part of your dog's overall gut health, alongside training and management.

The Bottom Line

So, why do dogs eat poop? Usually it's instinct, boredom, or habit, and sometimes it's a sign of a medical problem your vet should check. Keep the yard clean, use positive reinforcement, and support your dog's digestion as part of their overall health. With patience and consistency, most pet parents can make poop eating a lot less common.