How to Stop Dog Eating Poop (Feces): A Complete Coprophagia Guide

Why Dogs Eat Poop — And Why It's More Common Than You Think

If you've ever caught your dog snacking on feces — their own, another dog's, or even the cat's — you're not alone. Coprophagia (the clinical term for eating feces) affects an estimated 10–25% of dogs at some point in their lives, according to a study published in the Journal of Veterinary Behavior. While it's one of the most reviled canine habits, understanding why it happens is the first step toward stopping it.

The reasons fall into two broad categories: behavioral and medical. Puppies often explore the world with their mouths and may sample feces out of curiosity. Adult dogs might eat stool due to dietary deficiencies, malabsorption disorders, anxiety, boredom, or simply because they've learned the behavior gets a reaction from their owner. Before you try any intervention, it's critical to rule out underlying health issues with your veterinarian.

Medical Causes: When Coprophagia Signals a Health Problem

Before reaching for training solutions, you need to eliminate medical drivers. Several conditions can trigger or worsen coprophagia:

A 2018 study by researchers at UC Davis found that dogs fed nutritionally incomplete homemade diets were significantly more likely to exhibit coprophagia than dogs on AAFCO-compliant commercial diets. If you feed a homemade or raw diet, have it evaluated by a board-certified veterinary nutritionist (DACVN).

Behavioral Drivers: The Psychology Behind Poop Eating

Once medical causes are ruled out, behavioral factors usually explain the habit. Here's a breakdown of the most common behavioral triggers and how they manifest:

Maternal Instinct (Nursing Dams)

Mother dogs naturally consume their puppies' feces during the first three weeks of life to keep the whelping area clean and reduce predator-attracting scent. This is normal and self-resolving — no intervention needed.

Attention-Seeking

If your dog has learned that grabbing a stool triggers a dramatic chase-and-shout routine, they may repeat the behavior for the interaction. Dogs don't distinguish between positive and negative attention well.

Anxiety and Stress

Dogs in high-stress environments — kennels, shelters, homes with conflict or insufficient enrichment — may eat feces as a displacement behavior, similar to nail-biting in humans.

Boredom and Understimulation

A dog left alone in a yard for 8+ hours with no mental enrichment may resort to coprophagia simply because there's nothing else to do. This is especially common in high-energy working breeds like Border Collies, Australian Shepherds, and Belgian Malinois.

Learned Behavior from Other Dogs

Dogs are opportunistic observers. A puppy in a multi-dog household where an older dog eats feces will often pick up the habit through social learning.

Proven Strategies to Stop Your Dog from Eating Feces

Here's a layered approach combining management, nutrition, and positive reinforcement training. Start with the lowest-effort, highest-impact strategies first.

1. Environmental Management (Immediate Results)

The single most effective intervention is removing access to feces. This sounds obvious, but consistency is where most owners fail.

• Scoop the yard immediately after every bowel movement — not at end-of-day, not tomorrow. Use a dedicated pooper scooper (the Four Paws Wee-Wee Long-handled Scooper, ~$14.99, works well for medium-to-large dogs).
• Leash-walk your dog in areas where other dogs may have defecated. Maintain a 4–6 foot distance from unknown stool.
• Cover or block access to cat litter boxes. Use a top-entry litter box (like the Modkat Flip Cat Litter Box, ~$89.99) or install a dog-proof gate with a cat-sized opening.
• Supervise outdoor time — especially the first 10–15 minutes after meals when most dogs defecate.

2. Dietary Adjustments (1–2 Week Timeline)

Several dietary modifications can reduce the appeal of feces or address underlying nutritional gaps:

Important note on commercial deterrents: A 2022 survey by the American Kennel Club found that stool-deterrent supplements had a success rate of only about 50–60% among dog owners who tried them. They work best when combined with environmental management and training — not as standalone fixes.

3. Positive Reinforcement Training (2–6 Week Timeline)

Training addresses the behavioral root of coprophagia using force-free, reward-based methods. Here's a step-by-step protocol:

1. Teach a rock-solid "Leave It" cue. Start indoors with low-value items on the floor. When your dog looks away from the item, mark with a clicker or "Yes!" and reward with a high-value treat (freeze-dried chicken, ~$8/bag). Progress to higher-value items, then practice outdoors with decoy items placed at walking distance. Plan for 10–15 short sessions (3–5 minutes each) per week.
2. Teach "Come" as an incompatible behavior. After your dog defecates, immediately call them to you with an enthusiastic recall cue. Reward generously — a jackpot of 3–5 small treats. This creates a habit loop: poop → come to owner → reward, replacing: poop → eat poop.
3. Use the "Trade Up" game. If your dog picks up feces, don't chase or yell. Instead, offer something far more valuable (a piece of cheese, a favorite toy). When they drop it, reward and redirect. This builds trust and avoids resource guarding.
4. Increase mental enrichment. Puzzle feeders (like the Kong Classic, ~$15.99, or Outward Hound Nina Ottosson Dog Brick, ~$24.99), snuffle mats, scent work, and daily training sessions reduce boredom-driven coprophagia significantly.

What About Home Remedies? Separating Fact from Fiction

The internet is full of home remedy suggestions. Here's an evidence-based evaluation of the most common ones:

When to Call the Vet: Red Flags That Demand Professional Attention

Breed-Specific Considerations: Are Some Dogs More Prone?

While any dog can develop coprophagia, certain patterns emerge across breeds and life stages:

• Puppies (all breeds): Oral exploration peaks between 8–20 weeks. Most puppies outgrow this with consistent management and proper nutrition.
• Hounds and scent breeds (Beagles, Basset Hounds, Coonhounds): Bred to track and investigate scents; may be more inclined to investigate and taste feces.
• Herding breeds (Border Collies, Australian Shepherds): High intelligence and need for stimulation means boredom-driven coprophagia is more common without adequate enrichment.
• Retrievers (Labs, Goldens): Oral fixation from breeding history; tend to carry and mouth objects, which can extend to feces.
• Shelter/rescue dogs: Higher rates of coprophagia due to prior kennel environments, stress, and possible nutritional deprivation.

A 2023 study in the Journal of the American Veterinary Medical Association noted that dogs housed in environments with less than 30 minutes of daily interactive play had a 2.3x higher incidence of coprophagia compared to dogs receiving regular enrichment.

Prevention: Building Long-Term Habits That Stick

Stopping coprophagia isn't a one-time fix — it's a management system. Here's the maintenance framework that works long-term:

1. Immediate cleanup after every bowel movement (yard, walks, kennel). This is non-negotiable.
2. Feed a nutritionally complete diet with an AAFCO statement of nutritional adequacy for your dog's life stage.
3. Maintain a regular deworming schedule — adult dogs should have fecal tests 1–2 times per year, with deworming as directed by your vet.
4. Provide 30–60 minutes of daily enrichment — walks, training, puzzle toys, sniffaris, or dog sports.
5. Keep the "Leave It" and recall cues sharp with weekly practice sessions, even after the behavior has stopped.
6. Address cat litter access permanently — don't assume your dog will "grow out of it." Use physical barriers.

For multi-dog households, manage each dog individually. If one dog eats another's feces, separate them during post-meal potty breaks until the habit is broken.

Frequently Asked Questions

Is coprophagia dangerous for my dog?

It can be. Eating feces exposes your dog to parasites (roundworms, hookworms, giardia), bacteria (E. coli, Salmonella), and potentially viruses (parvovirus from infected dogs). It's also a zoonotic risk — meaning some of these pathogens can transfer to humans through licking or close contact. While a single incident is unlikely to cause serious harm, habitual coprophagia significantly increases disease exposure.

Will my puppy outgrow eating poop?

Many puppies do stop on their own by 6–9 months of age, but not all. A study referenced by the AKC found that approximately 20% of dogs that exhibit coprophagia as puppies continue the behavior into adulthood without intervention. Early management prevents it from becoming an ingrained habit.

My dog only eats cat poop — is that different?

The motivation is similar (cat feces often contain undigested protein and fat, making them appealing to dogs), but the risk profile is different. Cat feces can carry Toxoplasma gondii, a parasite that is zoonotic and particularly dangerous to pregnant women and immunocompromised people. Physical barriers to the litter box are essential.

How long does it take to stop coprophagia with training?

With consistent environmental management and positive reinforcement training, most dogs show significant improvement within 2–4 weeks. However, deeply ingrained habits in adult dogs may take 6–8 weeks of daily practice. Relapses are common during stressful periods (moving, new pets, schedule changes), so maintain your management system even after the behavior appears resolved.

Are stool deterrent supplements safe long-term?

Most commercial deterrents (For-Bid, NaturVet, Vet Classics No-Poo) are safe for extended use when given at labeled dosages. However, some contain garlic derivatives — while the doses are typically below the toxic threshold (approximately 5 g/kg of fresh garlic), dogs with pre-existing anemia or those on certain medications should be evaluated by a vet before long-term use. Always read the ingredient list and consult your veterinarian.