Like any companion or roommate, dogs — for all their love and cuteness—have habits we just don’t understand. One question dog owners often ask their pets: “Why? Why would you eat poop?”

When we polled* dog owners recently, most thought it was because a dog is lacking nutrients (49%), they’re anxious (43%) or they just think it tastes good (40%).
Dogs are significantly more likely to eat the droppings of another species (e.g., horses, rabbits) than their own.
We held our noses and got to the bottom of the issue with the help of some experts.
While those in our poll thought this was the number-one reason for the behavior, it has actually never been proven. “It’s a myth dogs eat poop because they’re seeking nutrients they aren’t getting. There’s no evidence to back this,” says
Opens a new windowDr. Jo Gale, BVetMed CertLAS MRCVS, Senior Manager, Global Science Advocacy at Waltham Petcare Science Institute.

According to
Opens a new windowDr. Tammie King, Applied Behavior Technical Leader at Waltham Petcare Science Institute, “It can occur where there is lack of environmental enrichment. You see this often in dogs who are kenneled and have a lack of opportunity to exhibit normal canine behavior.” So if you need another excuse to get out and play with your pooch, this is a good one.
Believe it or not, this is the main reason dogs eat poop. Dr. Jo Gale explains: “Dogs are scavengers by nature and use any opportunity to eat what they can, when they can. They consider it a ‘tasty snack.’” Dr. Tammie King adds that “[Dogs eating poop] is a learned behavior. They’ve done it, enjoyed it, and that behavior is repeated.”
We love our dogs so much that we’re willing to trust our best friends on this. Maybe we should come out with a line of doggie breath mints though. Hmm.

“Ingesting feces from any animal increases potential for ingesting parasites and pathogens,” cautions Opens a new windowDr. James Serpell BSc, Phd Professor of Humane Ethics & Animal Welfare at University of Pennsylvania School of Veterinary Medicine. He went on to say, “[It’s] not something humans should ignore, but it's not worth getting too excited about it.”
All the experts we consulted said that if your dog occasionally eats poop, it’s nothing to be overly alarmed by. Just keep an eye on the frequency and their overall health. And as always, make sure they’re getting a nutritious diet and plenty of exercise and attention. If you have any concerns contact your vet.
Despite dogs liking the taste of poop, we’re going to stick with the healthy range of more traditional flavors offered in all IAMS dog foods.
*Surveyed U.S. dog owners, age 18+
Sample Size: n=201
Fielded May 8 to May 10, 2020
We asked dog owners* how many hours a day they think their adult dog sleeps. The answers averaged around 9.7 hours. Truth is, dogs normally sleep around 12-14 hours a day. (Cats sleep 12-16 hours, which is why it’s called a “catnap,” we presume.) “Normal” can depend on lots of things. Bigger breeds definitely need more z’s. Older dogs tire quicker and sleep more. Growing puppies need up to 20 hours a day. Being cute must really be tiresome.
But why do they sleep so much? We’re not going to let sleeping dogs lie; we’re getting to the answers.
Dogs spend less time in deep REM sleep, so they’re able to wake quickly and be ready to go — whether it’s responding to danger or the opening of a bag of chips. It also means they need to doze more often to make up for that lack of truly restful sleep.
In general, carnivores need more rest. “In their wild dog and wolf days, it was a hunt for food, bringing down large prey, then feasting,” says
Opens a new windowDr. Jo Gale, BVetMed CertLAS MRCVS, Senior Manager, Global Science Advocacy at Waltham Petcare Science Institute. “They’d spend a long time digesting and may not eat for a few days. There’s a tendency to conserve energy.” Just think about how you feel after eating a huge steak. Incoming meat coma. Goodbye, belt. Hello, sofa.
Yawn. When owners are out of the house, dogs often sleep simply because they’re bored. They’re not into books and haven’t quite figured out how to turn on the TV, so why not catch a few extra winks? Plus, they want to be super refreshed when you come back home in the evening.
Some dogs like to sleep longer and some dogs are just lazier than others. According to
Opens a new windowDr. Tammie King, Applied Behavior Technical Leader at Waltham Petcare Science Institute, “You might see more sleeping after intense exercise or they’ve gone to a pet sitter or boarding center due to high stimulation.” There’s usually no cause for concern unless they seem lethargic and lose interest in playing or eating, or begin listening to a lot of emo music.
Their wild days long gone, dogs have adapted their sleep schedules to match humans’ sleep schedules. Sort of. They still might get you up in the night or early morning before your alarm goes off. It’s best to exercise them in the morning and evening so they’re more tired — and have used the facilities — right before everyone else goes to sleep.
Now, the only question remaining is, what do you think your dog dreams about?
*Surveyed U.S. dog owners, age 18+
Sample Size: n=201
Fielded May 8-10, 2020

