Encouraging a Dog to Drink More Water
Medically reviewed by Justin Shmalberg, DVM, CVA, ACVN, ACVSMR — For general education — not a substitute for veterinary care.
Most dogs that seem uninterested in the water bowl aren't being stubborn — they're responding to the bowl, the food, or the season, and each of those has a specific, testable fix.
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Most dogs that seem uninterested in the water bowl aren’t being stubborn — they’re responding to the bowl, the food, or the season, and each of those has a specific, testable fix.
Here’s the myth worth clearing up first: a dog who “just doesn’t like water” is rarely a real category. Dogs regulate thirst the same way we do, through blood osmolality and volume receptors, and a healthy dog with access to clean water will drink what it needs over a day even if the pattern looks erratic hour to hour. What owners read as pickiness is usually a mechanical or environmental barrier — a bowl that’s been sitting too long, a food switch that changed how much moisture the dog was already getting, a slippery floor, a new location. Fix the barrier and the “picky” dog usually sorts itself out within a few days.
An 11-year-old Labrador I worked with, 68 pounds, came in because her owner was sure something was wrong — the bowl in the mudroom looked untouched most mornings. We walked through the house together. The bowl sat on cold tile, right next to the dryer, which ran loud and hot most evenings. The dog had arthritis in both hips and had started avoiding that hallway altogether after a fall on the tile the previous winter. Nothing was wrong with her kidneys or her thirst drive; she was avoiding a room. We moved a second bowl to the carpeted hallway near her bed. Within four days, her owner’s rough log of refills went from once every two days to daily.
Start with what’s normal for the dog in front of you
Healthy adult dogs typically take in somewhere in the range of 50–90 mL of water per kilogram of body weight per day, counting both drinking and moisture from food, though hot weather, exercise, dry diets, and individual dogs push that number around quite a bit. A 30-pound dog eating dry kibble in a warm climate may reasonably drink close to a liter a day; the same dog on a canned or fresh diet may drink visibly less from the bowl because much of that water is already arriving in the food. That’s normal, not a red flag.
What actually deserves a call to your vet is a sustained, clear increase or decrease outside a dog’s own baseline — not a single dry day, but a pattern lasting a week or more. Persistent excess thirst can be an early sign of several treatable conditions, and it’s one of the more useful things you can report accurately, because vague answers (“more, I think”) are much less clinically useful than an actual measured amount.
The food bowl matters as much as the water bowl
Dry kibble runs roughly 10–12% moisture; wet and fresh diets run closer to 70–78%. That gap is large enough to change a dog’s drinking behavior on its own. A crossover study comparing fresh food to dry kibble found dogs on fresh food took in significantly more total water across the day than the same dogs on kibble, even accounting for how much they drank directly from the bowl — a finding echoed by broader work showing that feeding fresh food with water offered freely can exceed calculated daily water requirements and measurably change urine concentration, as reported in Feeding Fresh Food and Providing Water Ad Libitum Is Clinically Proven To Exceed Calculated Daily Water Requirements and Impact Urine Relative Supersaturation in Dogs. If you’re troubleshooting a dog that drinks little and eats only dry food, mixing in a spoonful of warm water at mealtime, or transitioning part of the diet to a canned or fresh option, is a more direct lever than anything you’ll do to the water bowl itself.
Fruit can help too, in modest amounts. Blueberries and apples are both mostly water by weight and make reasonable low-calorie treats layered into a hydration routine — our guides on Can Dogs Eat Blueberries? and Can Dogs Eat Apples? cover the portion and seed cautions worth knowing before you use them that way. Skip onion- or garlic-flavored broths as a flavoring trick; both are toxic to dogs in relevant amounts, a point our piece on Can Dogs Eat Onions? lays out plainly, and it applies to store-bought broths as often as home ones. A plain, low-sodium bone broth or the water left from boiling unseasoned chicken is a safer flavor booster than most owners realize is necessary — a splash is usually enough to change a dog’s interest without adding meaningful sodium.
I had a client whose 6-year-old Cavalier King Charles Spaniel, barely 16 pounds, had stopped finishing her water after a diet change to a lower-sodium senior kibble. The dog wasn’t sick — bloodwork was clean — she just preferred the taste of her old food’s broth-soaked kibble. We tried an ice cube with a few drops of low-sodium chicken broth frozen into it, dropped into the bowl twice a day. Her owner tracked bowl weight on a kitchen scale for two weeks; intake climbed back to her prior baseline by day nine. That’s a texture and flavor fix, not a medical one, and it’s worth trying before anything more elaborate.
Where a supplement actually fits, and where it doesn’t
Electrolyte and hydration-support products for dogs exist, and owners ask about them often, usually after a hot hike or a bout of loose stool. I try to weigh what a supplement can realistically do for diet, mobility, and recovery rather than treat it as a shortcut: an electrolyte add-in can support fluid balance during active recovery from heat stress, illness, or diarrhea, but it isn’t a fix for a dog who simply isn’t drinking enough day to day, and it won’t correct an underlying medical cause of excess or reduced thirst. If the issue is behavioral or environmental — the bowl, the food, the floor — no supplement addresses that, and I’d rather see an owner spend money on a second bowl or a canned-food trial first. Save the supplement conversation for a dog actively recovering from GI upset or heat exposure, and loop in your vet on dosing rather than guessing at a human electrolyte product, some of which carry sodium or xylitol levels that aren’t appropriate for dogs.
Small mechanical changes that consistently work
A few adjustments come up again and again in practice, roughly in the order I’d try them: switch to a wider, shallower bowl for flat-faced or long-eared breeds who avoid deep bowls; wash and refill bowls daily rather than topping off, since dogs are sensitive to biofilm and stale taste; add a second bowl in a quieter or warmer room, especially for older dogs with mobility limits; try a pet fountain, since many dogs are drawn to moving water over standing water; and, in hot months, add ice cubes rather than just cold tap water, which some dogs find more engaging.
A quick note on seasons: senior dogs often drink less in cold weather simply because they’re less active and less thirsty, which is normal, but pair that with reduced mobility and a bowl in a cold, hard-floored room, and you get an animal that looks dehydrated on paper but is really just avoiding an unpleasant walk to an unpleasant spot.
What I’d actually check this week
Start by weighing the bowl once a day for a week to get a real number instead of a guess — most owners are surprised by how much their read of “barely drinking” doesn’t match the scale. If the dry-food dog in your house is genuinely under-drinking, mixing warm water or a portion of canned food into meals will usually move the number faster than anything done to the water bowl alone; total daily water intake, not just bowl-drinking, is what the evidence in Total Water Intake and Urine Measures of Hydration in Adult Dogs Drinking Tap Water or a Nutrient-Enriched Water actually measured, and it’s the number that matters for your dog’s kidneys and bladder, not what’s left in the bowl at bedtime.
The Labrador from the mudroom is still on two bowls, one upstairs and one down, and her owner hasn’t worried about her water since. Not every case resolves that cleanly — some do turn out to be medical, and a week of real measurement is what tells you which kind of case you’re actually looking at. So before you assume your dog is being difficult, what does a week of an actual scale tell you that your gut hasn’t?
Frequently asked questions
How much water should a dog drink per day?
Healthy adult dogs generally take in somewhere around 50–90 mL per kilogram of body weight per day between drinking and food moisture combined, with exercise, heat, and diet type shifting that number considerably. Track actual bowl weight for a few days if you're unsure whether your dog's intake is unusually low.
Is it bad if my dog drinks a lot of water from the bowl but eats only dry kibble?
Not necessarily — dogs on dry food naturally drink more from the bowl to make up for the lower moisture in kibble compared with canned or fresh diets. It only becomes a concern if the increase is sudden or sustained well beyond that dog's own normal pattern.
Can I add broth to my dog's water to encourage drinking?
A plain, low-sodium broth without onion or garlic can work well as a flavor booster in small amounts. Avoid any broth containing onion or garlic, both of which are toxic to dogs, and check sodium content before using a store-bought version regularly.
When does low water intake need a vet visit instead of a home fix?
If a dog's drinking pattern has changed and stayed changed for a week or more, especially alongside other symptoms like lethargy, vomiting, or weight change, that's worth a veterinary visit rather than more bowl troubleshooting.