Is My Dog Chewing Out of Boredom or Anxiety? A Vet's Guide to Telling the Difference
Medically reviewed by Jessica Ennis, DVM, CVA — For general education — not a substitute for veterinary care.
Boredom chewing shows up when nothing else is happening; anxiety chewing shows up when something specific just did.
On this page
- What chewing is actually for, before it becomes a problem
- Early stage: boredom chewing looks like idle hands
- Escalating stage: anxiety chewing clusters around a specific trigger
- What I actually look for in the exam room
- Where the science on calming ingredients actually lands
- Mid-course correction: what actually changes each pattern
- When it’s neither, and when to call your vet
- Where I land
The first time an owner asks me this question, they’re usually holding a chewed-up shoe or standing in front of a doorframe with fresh tooth marks. They want a diagnosis. What they get from me instead is a question: when, exactly, did this start, and what was happening in the house at the time? That answer matters more than the shoe does.
What chewing is actually for, before it becomes a problem
Chewing is not inherently a symptom. Puppies chew because they’re teething and exploring the world mouth-first. Adult dogs chew because it’s a normal, self-rewarding behavior that relieves jaw tension and occupies time. The problem isn’t the chewing itself — it’s when it clusters around specific triggers, specific objects, or specific absences, because that clustering is the clue to what’s driving it.
I ask owners to notice three things before we talk about “fixing” anything: what the dog chews, when it chews, and whether the behavior is roughly the same every day or spikes around certain events. A dog who chews the same rope toy for twenty minutes after dinner every single night is telling a very different story than a dog who shreds the doormat only on the days a delivery truck idles outside.
Early stage: boredom chewing looks like idle hands
Boredom chewing tends to show up during long, understimulated stretches — the mid-morning lull after the owner leaves for work, a rainy weekend with no walk, the last hour before dinner when the dog has simply run out of things to do. It’s steady rather than frantic. The dog isn’t distressed; it’s just occupying itself, the way a person might pick at a hangnail during a boring meeting.
One of the dogs I worked with, a two-year-old Lab mix named Cooper, chewed through three sets of blinds cords over a month, always between 10 a.m. and noon, always on weekdays. His owner worked from home three days a week and left for the office the other two — and Cooper only chewed on office days, always the same window of time, never touching the blinds on the days she was home. There was no separation panic in it: he wasn’t pacing or drooling or trying to escape through the door. He was simply out of things to do during the exact hours she used to walk him before her schedule changed. Once she moved his walk to that window and added a stuffed chew before she left, the blinds stopped being interesting.
Escalating stage: anxiety chewing clusters around a specific trigger
Anxiety-driven chewing looks different because it’s tied to arousal, not idleness. It tends to start right after a trigger — a door closing, a thunderclap, the owner picking up keys — and it’s often paired with other stress signals: panting when it isn’t hot, pacing, drooling, trying to get through a door or crate, or chewing at door frames and window sills specifically, rather than toys. This is the same physiological pattern that shows up in dogs who panic at the sound of the garbage truck or who growl defensively when startled — the chewing is a release valve for a nervous system that’s already activated, not a way to pass idle time.
The distinction matters clinically. Boredom chewing responds to enrichment. Anxiety chewing often gets worse with more toys thrown at it, because the dog isn’t under-stimulated — it’s over-aroused, and a pile of new chew options doesn’t touch the trigger that’s driving the behavior.
What I actually look for in the exam room
Timing relative to a trigger is the single best differentiator I have. If the chewing starts within minutes of a specific event — the owner leaving, a loud noise, a stranger at the door — and settles once that trigger passes, I lean anxiety. If it’s spread evenly across a boring stretch of the day with no clear starting gun, I lean boredom.
I also look at the object. Anxious dogs disproportionately target exit points: door frames, window sills, crate bars, the edges of a baby gate. Bored dogs are less picky and will happily work on a toy, a shoe, a cardboard box — whatever’s available. And I ask about body language during the chewing itself, not just before it: lip licking, whale eye, a tucked tail, or a flattened body posture point toward anxiety even if the chewing looks superficially calm.
None of this replaces a real workup. Dogs who suddenly start chewing at a specific age, or who show new destructive behavior alongside changes in appetite, sleep, or elimination, need a veterinary exam first, because pain, dental disease, and GI discomfort can all present as increased chewing that looks behavioral but isn’t.
Where the science on calming ingredients actually lands
Owners often ask me about calming chews before we’ve even finished ruling things out, and I understand the impulse — you want to do something today. The honest answer is that the supporting evidence is real but modest, and it belongs after a diagnosis, not instead of one.
Chamomile has a long history of traditional use for stress and relaxation in humans and animals, though a recent review is careful to note that “for the remaining species, evidence is derived mainly from preclinical studies or traditional use,” according to a review in Biomedicines. That’s not nothing, but it’s not a clinical trial in dogs either.
Ashwagandha, specifically the KSM-66 extract studied in humans, has firmer backing: a systematic review published in Cureus “analyzed multiple RCTs and concluded that ashwagandha has a moderate positive impact on stress reduction and cognitive performance.” Again, that’s human data, and dosing in dogs isn’t the same as dosing in people, so I’d never hand a client a human capsule and call it a plan.
L-theanine, the calming amino acid found in tea, has more mixed human trial data than owners often assume. A review in Molecular Psychiatry found benefit was inconsistent across most trials, “except for one study on psychotic anxiety (SMD = 0.54; 400 mg/day for 8 weeks)” — a specific human dose in a specific clinical population, not a general green light. I mention this to clients not to dismiss the ingredient, but so they go in with realistic expectations rather than assuming a supplement will do the work that training and environment changes need to do first.
Mid-course correction: what actually changes each pattern
For boredom chewing, the fix is almost always structural, not disciplinary: more physical exercise earlier in the day, a food puzzle or stuffed chew during the specific window the behavior shows up, and rotating toys so nothing goes stale. It’s rarely about the dog needing “more toys” in general — it’s about matching enrichment to the exact hour the behavior clusters in.
For anxiety chewing, the fix starts with identifying and, where possible, reducing exposure to the trigger, then building tolerance gradually rather than flooding the dog with it. This overlaps heavily with the work I describe for dogs who shadow their owners out of insecurity — the same graduated approach used in independence training for a velcro dog applies directly to a dog who chews doorframes when left alone. Calming ingredients can be a reasonable adjunct once the behavioral plan is in place, but they’re support, not substitute.
A client of mine adopted a five-year-old rescue terrier mix, Biscuit, who’d chewed through two crate doors in her first month home. The chewing started the moment the owner picked up her car keys — not gradually, immediately — and Biscuit was drooling and panting by the time the owner reached the driveway. We didn’t reach for a supplement first. We rebuilt her relationship with the keys themselves: picking them up and putting them back down, dozens of times a day, with no departure attached, until the keys stopped predicting anything. It took about six weeks before the drooling and doorframe chewing dropped off, and only then did we layer in a calming chew for the handful of departures that still spiked her. New rescues often need this kind of patient, staged approach — something I think about the same way I think about the 3-3-3 rule for a new rescue dog, where the timeline itself is part of the treatment.
When it’s neither, and when to call your vet
If chewing appears suddenly in an adult dog with no obvious behavioral trigger, or if it comes with other new symptoms — vomiting, drooling that doesn’t track with anxiety cues, weight changes, or lethargy — that’s a reason to schedule an exam rather than start a training plan. Dental pain in particular gets misread as behavioral chewing more often than owners expect, because a sore mouth can genuinely drive a dog to chew harder, not less.
It’s also worth remembering that a dog who growls when petted is often communicating discomfort the same way an anxious chewer is — through the nearest available outlet, not through words. Reading the whole picture, not just the one behavior in front of you, is what actually gets you to the right answer.
Where I land
I tell clients the same thing every time: watch the clock, not just the wreckage. Boredom chewing spreads evenly across quiet stretches and responds to better enrichment timed to those hours. Anxiety chewing clusters tightly around a trigger, comes with a nervous body, and needs the trigger addressed before anything else helps. Calming ingredients like chamomile, ashwagandha, and L-theanine have real, if modest, evidence behind them in the reviews above, and they can support a plan once you know which plan you’re actually running. They were never meant to replace figuring out, honestly, which dog you have in front of you.
Frequently asked questions
Can a dog have both boredom chewing and anxiety chewing at the same time?
Yes. It's common for a dog to start out chewing from boredom and, if the behavior isn't addressed, develop anxiety around being crated or confined as a secondary issue. Tracking the timing carefully helps sort out which came first.
Will more chew toys fix anxiety-driven chewing?
Usually not on their own. Anxiety chewing is tied to a trigger and an aroused nervous system, so it typically needs trigger management and gradual desensitization rather than simply more options to chew on.
How long should I watch before assuming it's anxiety and not boredom?
A week or two of tracking when the chewing happens, relative to specific events like departures or noises, is usually enough to see a pattern. If it's tightly clustered around one trigger, that's your answer.