If you've ever caught your dog mid-snack at something they absolutely should not be eating, you already know the moment. The horror. The lunge. The "drop it" that comes out a half-second too late. And then the quiet, very real question that follows you the rest of the day:
Why does my dog eat poop?
You're not alone in asking. Coprophagia — the clinical name for stool eating — is one of the most-searched dog behavior questions on the internet, and one of the most misunderstood. Most articles will tell you to spray something on the lawn, add a deterrent to the bowl, or train it out with redirection. Some of that helps in the short term. None of it answers the question your dog is actually asking with the behavior.
Because in a lot of cases, your dog isn't being gross. Your dog is being resourceful — and the place to look is the gut.
What Is Coprophagia? (And How Common Is It, Really?)
Coprophagia is the technical term for when a dog eats feces — their own, another dog's, or sometimes another animal's entirely (cat litter boxes, we're looking at you).
It's far more common than most dog owners realize. Studies have estimated that roughly one in four dogs has been observed eating poop at least once, and around one in six does it regularly. It cuts across breeds, ages, and diets — though it tends to be more common in multi-dog households and in dogs eating heavily processed commercial diets.
The behavior itself isn't dangerous in most cases. But it's almost always a signal. And ignoring the signal is the part that costs you.
Why Do Dogs Eat Poop? The Six Real Reasons
Let's separate myth from mechanism. Here are the actual drivers behind coprophagia, in roughly the order they show up in real dogs:
1. They're Not Absorbing the Nutrients in Their Food
This is the big one — and the one that gets skipped in nearly every article on the subject.
There's a saying we come back to constantly at Gussy's Gut®: your dog is not what they eat — it's what they can absorb.
If your dog's gut is impaired — and most modern dogs' guts are, to some degree — even the best, highest-quality food largely passes through. The nutrients don't get extracted properly. They don't get absorbed. And at some point, the body starts looking for them somewhere else.
Stool is, biologically, still rich in undigested nutrients, enzymes, and microbial life. A dog whose gut isn't pulling enough out of their bowl will sometimes go looking for what they missed — and the closest source happens to be on the lawn.
This is why you'll see coprophagia spike in dogs fed kibble (which requires more gut support than any other diet type to digest properly), in older dogs whose absorption has weakened over the years, and in dogs recovering from antibiotics, medications, or illness.
2. Their Gut Microbiome Is Out of Balance
A healthy dog's gut contains hundreds of bacterial species working in cooperation — extracting nutrients, supporting the immune system, regulating mood, even shaping cravings. When that balance tips — toward fewer species, toward less diversity, toward dominance of the wrong strains — the signals coming out of the gut start to scramble.
A dog with a depleted, low-diversity microbiome can develop unusual appetites. Stool eating. Grass eating. Eating dirt, sticks, drywall — anything their gut is telling them might contain something missing.
This isn't your dog being weird. It's biology trying to fix itself with the tools available.
3. Enzyme Deficiency
Closely related to the absorption issue: many dogs simply don't produce enough digestive enzymes to fully break down their meals. Pancreatic enzyme insufficiency (in clinical cases) and lower-grade enzyme depletion (much more common) both leave behind a stool that's still nutrient-rich — which is why some dogs find their own poop genuinely appealing.
4. Stress, Boredom, and Unfulfilled Instinct
This is the behavioral half of the equation, and it's real. Dogs that don't get enough exercise, mental stimulation, or time outdoors in varied environments can develop coprophagia as a self-soothing behavior. High-energy breeds that aren't getting enough work, hunting breeds that don't get to hunt, anxious dogs in confined spaces — all of them are more prone to it.
5. Learned Behavior (Especially in Puppies)
Mother dogs clean up after their puppies by eating their stool. Puppies, watching closely, sometimes pick up the habit. Most grow out of it. Some don't.
6. Underlying Medical Issues
A short list of things worth ruling out with your vet, especially if the behavior is new or sudden:
- Intestinal parasites
- Exocrine pancreatic insufficiency (EPI)
- Diabetes
- Cushing's disease
- Thyroid issues
- Malabsorption disorders
- Side effects from certain medications
If your dog has suddenly started eating poop after years of not doing it, that's a vet conversation worth having.
How to Stop Your Dog From Eating Poop: Why the Quick Fixes Usually Don't Work
Walk into any pet store and you'll find an aisle of products that promise to stop the behavior — sprays, powders, "deterrents" that make the stool taste bad. Some pet food companies sell additives that supposedly do the same.
Here's the issue: these products treat the behavior, not the cause.
If your dog is eating poop because their gut isn't absorbing nutrients properly, making the stool taste worse doesn't change anything. The driver is still there. The body is still looking. The behavior just shifts — to another dog's stool, to the cat's litter box, to whatever the deterrent isn't covering.
The real fix is upstream. You have to repair the gut.
The Gut Health Solution: Why Fermented Whole Foods Work
This is what we built Gussy's Gut around. Not gimmicks. Not chews. Not a vitamin pill. Fermented whole foods — the same kind of nutrition dogs evolved eating, in concentrated supplement form.
Here's why fermentation matters so much for a dog who's eating poop:
Fermentation breaks down the plant cell wall. Think of it as pre-digesting the food. The billions of cells inside every piece of broccoli, every leaf of kale, every chunk of cabbage get opened up — making the nutrients inside genuinely available for your dog's body to absorb. No more half-digested vegetables coming out the other end. No more "where did those nutrients go" mystery.
Fermentation creates the full triad of biotics. Through our proprietary wild fermentation process, the ingredients produce prebiotics (the food that feeds beneficial bacteria), and the fermentation itself creates the beneficial bacteria and the compounds they leave behind. This isn't a single-strain supplement promising one type of microbe. It's a wide-spectrum, whole-food approach to gut diversity — which is what your dog actually needs.
Fermentation makes the food taste right to your dog. Fermented vegetables are slightly sweeter than raw ones, and the attraction is ancestral. For millions of years, dogs ate the fermented gut contents of their prey — small mammals, birds, whatever their wild diet provided. Their bodies recognize fermented food on an instinctual level. They want it.
Fermentation supports the gut lining itself. A healthy gut isn't just about what lives inside it — it's about the lining that keeps the good stuff in and the bad stuff out. Fermented whole foods support the cells that form that lining, helping rebuild the integrity that processed diets, medications, and environmental toxins gradually wear down.
Boost: The 90-Day Gut Reset
Of the four powders in the Gussy's Gut lineup, Boost is the one we built specifically for dogs whose guts need a full reset — and dogs with persistent coprophagia almost always fall into that category.
Boost is 19 organic ingredients, all fermented together using our wild fermentation process: cabbage, cauliflower, broccoli, cilantro, parsley, lacinato kale, mustard greens, sunchoke, dandelion, turmeric, papaya, red beets, milk thistle, oregano, wild blueberries, alfalfa, decaffeinated green tea, grass-fed goat kefir, and ginger.
Nineteen ingredients because a true reset needs comprehensive support across multiple pathways at once — detoxification, inflammation reduction, gut lining repair, and microbial rebalancing. Each ingredient was chosen for a specific role and a specific prebiotic profile. Together, they deliver a clear signal to the gut: feed the beneficial bacteria, starve the rest, and rebuild.
A 7.5 oz bag of Boost is concentrated from 7 1/2 lbs of ingredients. That's the concentration value of fermented, freeze-dried whole foods — what would take you a kitchen full of organic produce, days of fermentation, and roughly two weeks of shelf life before it spoiled, we've turned into a shelf-stable powder that lasts two years in your pantry.
Add, stir, and serve. That's the protocol. Mix one teaspoon per 20 pounds of body weight into your dog's wet food or with a splash of water (never feed it dry — dogs shouldn't inhale powder of any kind). No cooking. No prep. No guesswork.
Why 90 Days Is Non-Negotiable
Here's the part most dog owners don't want to hear, but we'd rather be honest than have you disappointed in 30 days.
Boost is a 90-day reset. Not a 30-day fix. Not a quick switch. Ninety days of consistent, regular feeding without a break — and we mean that genuinely.
Why?
- Cell turnover takes time. The cells lining your dog's gut are constantly renewing themselves, but the full turnover cycle isn't instant.
- The microbiome needs time to shift. You can't rebalance hundreds of bacterial species overnight. Some need to be fed and grown. Others need to be starved out. That process takes weeks, not days.
- Nutrient compounds need time to take effect. The polyphenols, phytochemicals, terpenes, and fatty acids produced through fermentation work cumulatively. They build up. They compound.
- It's comparable to any nutrition-driven intervention. Human diet protocols, prescriptive nutrition plans — they all need at least 90 days to show meaningful results. Your dog's body works the same way.
If you're not willing to give it 90 days, this product may not be right for you. We'd rather tell you that now than have you give up on day 45 right before the breakthrough.
What we'll also tell you: the timeline depends on the dog. Younger, healthier dogs sometimes see changes faster. Older dogs, dogs recovering from antibiotics, dogs with long histories of poor gut health — they may need the full 90 days or slightly longer. Vaccine history, medication history, breed, age, diet quality, injuries, environment — all of it plays a role. That's why 90 days is the standard recommendation. It covers the full range.
What You May Notice Along the Way
The coprophagia is usually one of the last things to fully resolve, because it's downstream of the gut repair that's happening underneath. But while you wait for that, you'll often see other changes first:
- Coat quality improving — shinier, softer, less dander
- Clearer eyes
- Better skin
- Firmer, more consistent stools
- More energy, more zest, more joie de vivre
- A dog who simply seems more comfortable in their own body
These are the visible signs of gut health coming back online. The poop eating typically fades once your dog's body stops sending the "we're missing something" signal — because, finally, it isn't.
The Bigger Picture: Gut Health Is the Center of All Health
We say this often because it's the most important thing we know:
An unhealthy gut is the first thing that creates disease. A healthy gut is the first thing that creates health.
Everything moves through the gut. Food enters, gets processed, nutrients get extracted, waste exits. If that machinery is working well, your dog thrives. If it isn't, no amount of expensive food, no premium kibble, no fancy supplement will reach where it needs to go.
Coprophagia is one symptom of a gut that isn't doing its job. It's frustrating. It's gross. It's also, in a strange way, your dog telling you exactly where to look.
Ready to Start the 90-Day Reset?
If you've tried the sprays, the additives, the training tricks, and you're still pulling your dog away from things they shouldn't be eating — it's time to look upstream.
Boost is the place to start. Ninety days of consistent feeding. Add, stir, and serve. Real food, fermented, concentrated into a scoop you can mix into any meal.
Your dog isn't trying to drive you crazy. They're trying to fix something. Let's fix it the right way — from the inside out, the way nature actually meant it to work.
Every dog is unique. Please consult your veterinarian if your dog's coprophagia is sudden, severe, or accompanied by other symptoms — there are medical conditions worth ruling out. Gussy's Gut products are supplements designed to support gut health and overall wellness, used alongside a quality diet, regular exercise, and time outdoors in varied environments.
