Puppy Eating Poop: Why Mixed Breed Puppies Do It and How...

If you've caught your mixed-breed puppy snacking on feces—whether their own, another dog's, or something found on a walk—you're not alone. Coprophagia (the clinical term for eating feces) affects an estimated 25% of all puppies at some point, and mixed-breed owners often wonder whether their dog's unique genetic background plays a role. In this comprehensive guide, we'll explore why your puppy is eating poop, how mixed-breed genetics may factor in, and exactly what you can do about it using force-free, science-backed methods.

Understanding Coprophagia in Puppies: The Science Behind the Behavior

Coprophagia is one of the most common—and most revolting—behaviors puppy owners encounter. According to a study published in the American Journal of Veterinary Research, approximately 1 in 4 dogs will exhibit coprophagia during their lifetime, with the behavior peaking between 4 and 9 months of age.

Several factors drive this behavior in puppies:

• Exploratory behavior: Puppies explore the world with their mouths, much like human toddlers. Feces is novel-smelling and texturally interesting.
• Nutritional gaps: Puppies on incomplete or poorly balanced diets may seek additional nutrients from feces.
• Enzyme deficiency: Some puppies lack sufficient digestive enzymes, causing undigested food particles in stool that still smell appetizing to them.
• Maternal instinct carryover: Mother dogs clean their puppies' waste by consuming it. Puppies may mimic this behavior before outgrowing it.
• Attention-seeking: If you react dramatically when your puppy eats poop, they may repeat the behavior for the engagement.
• Anxiety or boredom: Under-stimulated puppies or those with separation anxiety may turn to coprophagia as a displacement behavior.
• Parasite load: Intestinal parasites like roundworms and hookworms can create nutrient deficiencies that drive the behavior.

Why Mixed-Breed Puppies May Be More Prone to Coprophagia

While any puppy can develop coprophagia, mixed-breed puppies face some unique risk factors tied to their genetic variability:

Unpredictable Digestive Traits

When you bring home an F1 Labradoodle or an F1B Cavapoo, you're getting a genetic lottery ticket when it comes to digestive function. One puppy in a litter might inherit the Poodle parent's efficient digestion, while a littermate inherits the other parent's slower gastrointestinal transit time. Slower transit means more undigested nutrients in stool, making it more appealing to eat.

Variable Energy and Stimulation Needs

Mixed breeds combining two high-energy parent breeds (think Border Collie × Australian Shepherd mixes) require significant mental and physical stimulation. Puppies that don't receive adequate enrichment—typically 60–90 minutes of structured activity per day for high-drive mixes—are more likely to develop boredom-driven coprophagia.

Inconsistent Appetite Regulation

Some designer mixes inherit the Labrador Retriever's infamous food motivation (linked to a POMC gene mutation found in approximately 23% of Labs) combined with a less food-driven parent breed's metabolism. This mismatch can leave puppies perpetually hungry and more likely to scavenge feces.

Health Risks When Your Puppy Eats Poop

While coprophagia in puppies eating their own stool is generally more disgusting than dangerous, significant health risks emerge when puppies consume feces from other animals:

Parasite Transmission

Feces from infected dogs can transmit roundworms (Toxocara canis), hookworms (Ancylostoma caninum), whipworms, and Giardia. The Merck Veterinary Manual notes that roundworm eggs can survive in soil for years, making environmental contamination a persistent risk.

Bacterial and Viral Exposure

Parvovirus, salmonella, E. coli, and campylobacter can all be transmitted through fecal ingestion. Parvovirus in particular is shed in massive quantities in infected dogs' stool and can survive in the environment for months.

Zoonotic Concerns

When your puppy eats feces and then licks your face, they can transmit zoonotic organisms—diseases transmissible from animals to humans—including Giardia and certain bacteria. This is especially concerning in households with young children, elderly individuals, or immunocompromised family members.

Proven Strategies to Stop Your Puppy from Eating Poop

Addressing coprophagia requires a multi-pronged approach. Here are the methods I recommend based on years of working with puppy owners, all using positive reinforcement and force-free techniques:

Step 1: Rule Out Medical Causes First

Before behavioral intervention, consult your veterinarian for a complete wellness exam including:

• Fecal flotation test ($35–$65 at most clinics) to check for parasites
• Complete blood count and chemistry panel if nutritional deficiency is suspected ($80–$200)
• Discussion of current diet's AAFCO adequacy statement and guaranteed analysis
• Assessment for exocrine pancreatic insufficiency (EPI), which is more common in certain breeds like German Shepherds and can appear in mixes

Step 2: Environmental Management

Management is your first line of defense while training takes hold:

• Immediate cleanup: Pick up feces within 60 seconds of elimination. Use a dedicated poop bag and dispose immediately.
• Leash supervision: Keep your puppy on a 6-foot leash during potty breaks for the first 4–6 weeks of training.
• Cat litter box security: Use a top-entry litter box or install a baby gate with a cat-sized opening to prevent puppy access.
• Yard sweeps: Walk your yard daily to remove any wildlife or neighboring dog feces.

Step 3: Dietary Adjustments

Work with your veterinarian to evaluate whether dietary changes might help:

• Higher-quality protein: Switch to a diet with a named animal protein as the first ingredient and minimum 28% crude protein for puppies (per AAFCO growth requirements).
• Digestive enzyme supplements: Products like NaturVet Digestive Enzymes ($12–$18 for 110 scoops) or VetriScience Probiotic Everyday ($22–$30 for 60 chews) can improve nutrient absorption.
• Feeding schedule: Split daily food into 3 meals instead of 2 for puppies under 6 months to maintain steadier blood sugar and reduce hunger-driven scavenging.
• Fiber addition: Adding 1 teaspoon of plain canned pumpkin per 10 lb of body weight can improve stool quality and reduce appeal. Do not use pumpkin pie filling.

Step 4: Positive Reinforcement Training Protocol

This is where the real behavior change happens. Use this 4-week protocol:

Week 1–2: "Leave It" Foundation

1. Hold a low-value treat in a closed fist. When your puppy sniffs and backs away, mark with "yes!" and reward from your other hand with a higher-value treat (freeze-dried liver or boiled chicken).
2. Practice 3 sets of 10 repetitions daily.
3. Progress to placing the treat on the floor under your hand, then under your foot.

Week 2–3: Generalization to Outdoor Contexts

1. Practice "leave it" with increasingly tempting items on walks: leaves, twigs, then (planted) kibble pieces.
2. Keep training sessions to 5 minutes maximum—puppies lose focus fast.
3. Use a long line (15–30 ft) for safe outdoor practice.

Week 3–4: Real-World Application

1. During potty breaks, have high-value treats ready (cheese, hot dog pieces, or Zuke's Mini Naturals at $6–$8 per 6 oz bag).
2. The moment your puppy finishes eliminating, call them to you and reward immediately—before they can turn around to investigate.
3. Practice the "come away" recall: call puppy's name, take 2 steps backward, reward when they reach you.

Step 5: Taste Deterrents (Supplementary Tool)

Products like For-Bid ($14–$20 for a 4-month supply) or NaturVet No Scoot Plus Coprophagia Deterrent ($10–$15 for 60 chews) work by making stool taste unpleasant. These contain ingredients like Yucca schidigera extract or monosodium glutamate that alter stool palatability. Results vary—approximately 50–60% of owners report reduction in coprophagia when used consistently for 2–3 weeks. They work best combined with the training protocol above, not as a standalone solution.

How Mixed-Breed Genetics Influence Training Approach

Your mixed-breed puppy's parent breeds can inform your training strategy for coprophagia:

When Coprophagia Persists: Advanced Interventions

If your puppy's coprophagia hasn't improved after 6–8 weeks of consistent implementation, consider these next steps:

• Veterinary nutritionist consultation: A board-certified veterinary nutritionist ($150–$300 for initial consultation) can evaluate whether a custom diet formulation addresses underlying nutritional drivers.
• Certified behaviorist referral: A Certified Applied Animal Behaviorist (CAAB) or veterinary behaviorist (DACVB) can assess for underlying anxiety disorders. Veterinary behaviorist consultations typically run $250–$500.
• Anxiety medication evaluation: In cases where coprophagia is driven by compulsive disorder or severe anxiety, your veterinarian may discuss medications like fluoxetine (Reconcile) or clomipramine. These are prescription-only and require careful veterinary monitoring.
• GI workup: If not already performed, a full gastrointestinal panel including TLI (trypsin-like immunoreactivity) and cobalamin/folate levels ($120–$250) can rule out malabsorption disorders.

Frequently Asked Questions About Puppy Coprophagia

Quick-Reference Coprophagia Action Plan

This article is for informational purposes only and does not replace professional veterinary advice. Always consult your veterinarian before making dietary changes, starting supplements, or if your puppy shows signs of illness. For emergencies involving toxic ingestion, contact ASPCA Animal Poison Control at (888) 426-4435.