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Why Does My Dog Eat Poop?

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Yes, this is a totally disgusting topic. Coprophagia is a pleasant term for stool eating.

Although the thought of this activity is nauseating, there is actually one stage in a pet’s life when coprophagia is expected.

When mother dogs and cats have litters, they deliberately consume the feces of their puppies or kittens to hide their scent while the litter is vulnerable and sheltered in the den.

Beyond that, stool eating — although a very common complaint among dog owners – is just plain gross.

Reasons Behind Coprophagic Behavior

Pets eat poop for a variety of reasons. Medical problems are a common cause, including pancreatic insufficiency or enzyme deficiency. Intestinal malabsorption and GI parasites are also common medical reasons that can prompt a dog to eat his own poop.

This is why I recommend dogs have their stools checked by the vet’s office every six months to make sure they’re parasite-free.

The pancreas of dogs secretes some digestive enzymes to aid in the processing of food, but many dogs don’t secrete enough enzymes and wind up deficient. Since the feces of other animals are a source of digestive enzymes, dogs with a deficiency will ‘recycle’ by eating the enzyme rich poop.

Rabbit poop is one of the richest sources not only of digestive enzymes, but also B vitamins. Many dogs, if they stumble upon rabbit droppings, will scarf them right up to take advantage of those nutrients.

And dogs on entirely processed, dry food diets, who eat no living foods at all, will intentionally seek out other sources of digestive enzymes to make up for their own lifelong enzyme deficiency.

Cats fed poor-quality diets can provide litter box temptations for dogs in the family. Many cheap dry foods contain ingredients that are not bioavailable, so food is passed out in the stool undigested, providing scavenging dogs with the opportunity to ‘recycle.’

Feeding your pet a diet containing human-grade protein, probiotics and supplemental digestive enzymes can sometimes curb the urge to find gross sources of free enzymes around the yard or in the litter box.

Coprophagia Can Also Be A Behavioral Problem

Some dogs, especially those in kennel situations, may eat feces because they are anxious and stressed.

Research also suggests dogs who are punished by their owners for inappropriate elimination develop the idea that pooping itself is bad. So they try to eliminate the evidence by consuming their feces.

Another theory that seems to hold some weight is that coprophagia is a trait noted in all canines – wolves, coyotes and domesticated dogs – and arises when food is in short supply.

Sadly, I see this most often in puppy mill dogs. Puppies who go hungry, are weaned too young, have to fight for a place at a communal food dish, or are forced to sit for weeks in a tiny crate with nothing to do, are at high risk of developing habitual stool-eating behavior that becomes impossible to extinguish.

Coprophagic behavior can also be learned. Older dogs with the habit can teach it to younger dogs in the household.

Like a dysfunctional game of ‘monkey see, monkey do,’ one dog can teach the rest of the pack that this is what you do while wandering around the backyard.

When Poop Eating is Compulsive

Some scientists believe dogs eat poop simply because it tastes good to them.

I disagree with this.

Some dogs have weirdly strange ‘standards’ about the poop they eat. For example, some dogs eat only frozen poop (we affectionately refer to these as poopsicles at my practice).

Others consume only the poop of a specific animal. Still others only eat poop at certain times of the year.

So some dogs who stumble upon feces occasionally decide to sample it, while others become completely obsessed with eating certain specific poop.

Tips for Curbing Your Dog’s Revolting Habit

Fortunately, there are some common sense ways to reduce your dog’s coprophagia habit.

  • Pick up your dog’s poop immediately, as soon after he eliminates as possible.
  • If you have cats, get a self-cleaning litter box or place the box in a location where you dog can’t get to it.
  • Improve your pet’s diet as much as possible, and add digestive enzymes and probiotics at meal time.
  • Offer toys to your dog that challenge his brain and ease boredom.
  • Sufficient exercise is also crucial in keeping your dog’s body and mind stimulated. Bored dogs tend to develop far stranger, disturbing behaviors than dogs that get plenty of exercise and mental stimulation.

If your pet’s coprophagic behavior seems to be going from bad to worse, make sure to talk to your vet about your concerns. You definitely want to rule out any underlying medical reason for this very gross, yet very common behavior problem.

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