Why Do Dogs Eat Poop?

by Jim McBean on March 10, 2010 · View Comments

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Why DO dogs eat poop?

This is the million dollar question isn’t it? The question on everyone’s mind? Ok, maybe it’s not a question on everyone’s mind, but it is certainly a question quite a few aghast dog guardians have pondered over the millenia I’m sure.

Technically Speaking

The technical term for poop eating is coprophagia, from the Greek words phagein (“to eat”) and copros (“feces”) ; to eat feces.

But Why Eat Poop?

As revolting as the thought of our dog eating poop is to us, there are a number possible reasons why he does.

There may be health problems such as pancreatitis, intestinal infections or other health problems. Some have theorized that dogs eat feces out of boredom or stress.

It Could Just Be Normal

Wolves and wild dogs eat the intestinal lining of their prey and in doing so ingest some of that animal’s fecal matter. For the domestic dog, eating the feces or another animal may very well be a part of normal carnivorous behaviour, and a nutritious one at that.

It is well know that feces can be a good source of;

  • high quality protein
  • essential fatty acids
  • fat soluble vitamins (particularly vitamin K)
  • full spectrum of B vitamins
  • many minerals because of the soil in feces
  • antioxidants
  • enzymes
  • fibre

Did You Know?

Dogs fed a predominately raw meaty bones diet have on average about 1/3 the fecal volume of their processed food fed cousins?

Dogs fed a raw diet more efficiently digest and utilize the food they eat and as a result have much smaller stools. In contrast, grain based, kibble fed dogs have a much more difficult time digesting the grains in their commercial dog food, and much of it passes straight through, incompletely digested. In this case the end result is a big steaming pile of sh*t. You know, the kind that you see out on the boulevard every day because the dog’s owners didn’t, or couldn’t pick it up!

Here’s What a Couple of Raw Feeding Vets Have to Say

Many dogs that eat commercial dog food have to eat feces to stay healthy. Usually their own. The feces they eat is of far greater benefit to them than the product produced by the dog food companies.” – Dr. Ian Billinghurst B.V.Sc (Give Your Dog A Bone)

Fecal matter contains enzymes, vitamins and is teeming with bacteria – in a sense teeming with tiny live prey. For dogs forced to eat factory-made food, the items they scavenge may be most nutritious.” – Dr. Tom Lonsdale (Work Wonders: Feed Your Dog Raw Meaty Bones)

How to Prevent OverPooPulation

I’m with Tom and Ian on this one. I think that the most likely reason(s) that a dog eats poop is because; it’s a natural carnivorous behaviour and a behaviour that is still observed in other carnivores (wolves and wild dogs) today. And because many modern grain based commercial dog foods lack digestibility, leaving behind a stool of partially digested material, that the dog then re-consumes in an effort to obtain more nutrition.

So is Eating Poop a Good Thing or a Bad Thing?

Now I know I had you (owners of poop eaters) all but convinced that allowing your dog to eat poop is a good thing, but if I were you I’d refrain. I’m just sayin’.

If not for the gross factor, for the most part eating the feces of a prey animal is probably a healthy activity with little, if any consequences. However, for domestic dogs that don’t hunt for prey, but do like to indulge in eating the neighbor dog’s poop, or poop at the dog park – some serious health risks could be presented by eating feces laden infectious organisms, some of which can lead to;

In all seriousness though, if your dog is in the habit of eating feces, you may want to get him or her checked out by a veterinarian and/or take a closer look at his diet, especially if the food she’s eating is grain (wheat, corn, rice) based. A higher quality, more easily digested food, will probably mean less poop eating.

Quiz: How many times has the word “poop” been mentioned in this post? :)

  1. Does the World Have a Fascination With Poop?
  2. Why it’s Not a Good Idea to Eat Dog Poop ~ A Salmonella Story: The Series
  3. Raw Food Diets for Dogs: Yahoo Answer Gets Answered
  • ISaidSit
    I have found my clients dogs almost always stop coprophagia with a diet change. I don't recommend a specific diet, just the suggestion to try a different one. It has been my experience that it is more often physiological than behavioral, even though I am a behaviorist. If the body isn't getting what it needs the brain tells it to keep looking. Of course there are behavioral explanations and solutions too.
  • As I talk about in my post, I don't think the act of animals eating feces is a bad thing, although certainly revolting to us. The main problem "out of the wild" is that there is a much higher chance of "urban feces" being contaminated, with all sorts of things from organic to inorganic.

    I do believe like you, that the most likely reason for coprophagia is a physiological one and not a behavioural one

    Thanks for stopping by. =)
  • Amy and I will follow up with The Honest Kitchen. We are feeding them according to the guidelines. And they love the food. When they know meal time is coming "soon" they carry on like they're starving. Also, Ty lost weight when we switched him to the new food and Buster has not gained any weight ... though he does get walked 4-6 miles per day.

    I will report back to you.
    And @dogulove - thanks for your feedback/thoughts ... much appreciated.
  • dogulove
    Thanks goodness my Muffin does not eat poop. If she did how I could let her lick my face for 5 minutes at a time like she often does, and I love it! However, Sharon's old & slightly senile Pug combs the yard looking for poop and it's really the most disgusting thing. All of our dogs get Honest Kitchen. Just a quick comment to fellow Honest Kitchen user Rod@GoPetFreindly–you're probably giving them too much food if they are pooping that much. I made the same mistake early on and Muffin was pooping tons. I beleive the guidelines on the box are way too generous. Just scale back the amount until pooping returns to normal. Poop poop poop!
  • Neither of my dogs eat their own crap, but one of them seems to like cat poo. And they both like horse dung (crap? sh*t?).

    Disgusting ;)
  • Jersey loves nothing more than kitty nutty butties! I guess that it's the bits of undigested cat food that she goes for. NOM NOM!
  • michelechollow
    Hi Jim, Well now I know more about this than I wanted to. My dogs never ate their poop. It is a tough subject to tackle, and you handled it well.
  • Do I have to say it again? Ewwwwwwwwwwwww!

    Unfortunately, Buster (a GSD) is a poop eater. And then he throws it up. And then Amy cleans it up because I sure can't go near that!

    Buster has been given a wonderfully clean bill of health by our vet, so no problems there.

    As you know, both dogs are eating dehydrated raw food from The Honest Kitchen - since the end of December. And both dogs poop WAY more now than when they were eating kibble. WAY MORE. Ty goes more in the morning (2-3x during our walk) than he used to in an entire day. But we won't be switching back to kibble anytime soon.
  • Poor Amy, that wouldn't be a very pleasant job. :/

    "WAY MORE" doesn't sound right to me, it should be way less. Have you checked with Honest Kitchen to make sure you're feeding in their product in the correct amounts, or whether you should do some tweaking?
  • Valerie
    My dog is a poop eater. We thought it was because he was neglected as a puppy and nearly starved to death so he might have eaten it out of necessity. But the more I talk to other dog owners whose dogs have had stable lives, it sounds like it's just a normal dog thing.
    Thanks for the post.
  • You're welcome Valerie an thanks for stopping by. =)

    As I wrote in my post, to me it makes perfect sense why dogs would want to consume feces from an evolutionary nutritional standpoint, where wild dogs would have eaten the non-infected feces of prey animals.

    My concern these days is that the feces most dogs would have access to would be from other dogs in the neighborhood, that have a good chance of being infected with something that could seriously harm them.
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