Feeding Cats and Dogs in the Same House: How to Stop Your Dog Eating the Cat's Food (and the Cat Stealing Back)

Do this tonight: Feed the dog and the cat in different rooms, or either side of a stair gate the cat can pass and the dog can't. Feed both at set times and lift whatever is left after 15–20 minutes. Move the cat's bowl up to a worktop, shelf or raised station the dog can't reach. Only if separating by room and time isn't workable, crate-feed the dog or look at a microchip feeder.

You put the cat's bowl down, turn round to fill the kettle, and the dog has cleared it. Or it's 11pm and you find the cat picking dry food out of the dog's bowl, one biscuit at a time.

If your dog keeps eating cat food, or the cat has switched to the dog's, you have a management problem, and nearly every home has a fix for it. Training rarely comes into it.

Feeding cats and dogs in the same house comes down to who can reach what, and when. What you're trying to stop is the daily habit, for both animals. The fixes run from free to "costs a bit", so stop at the first one that works.

The plan is built on current feeding guidance from Cats Protection, International Cat Care, the RSPCA, PDSA and Dogs Trust, linked where each point is made. We didn't test any product.

Why your dog keeps eating the cat's food, and why it matters

Why the dog gets to the cat's bowl

Most dogs will help themselves to anything edible left within reach. That's the first half of the problem.

The second half is the cat's bowl. Cats Protection says cats "have evolved to eat little and often", and the RSPCA puts it as "cats naturally eat several small meals per day". Dry food suits that habit; Cats Protection notes it "can be left out all day, which is useful for cats who like to graze their food".

So the cat's bowl sits on the kitchen floor for hours. A meal-fed dog walks past it ten times a day. The outcome is predictable.

There's a cat-side point too. International Cat Care says "cats generally do not like to share food bowls or be seen by other cats when eating". It means other cats, but a dog hovering at the bowl seems to us to have the same effect: the cat bolts its food, leaves it, or goes and eats the dog's instead.

Cat food for dogs, dog food for cats: why neither should become a habit

Dog first. Cat food is made for a different animal. Cats Protection puts it plainly: "Cats are obligate carnivores, which means they need to eat meat to stay healthy." A dog that clears the cat's bowl every day is eating a second diet on top of its own.

That matters for weight. PDSA says veterinary professionals estimate that nearly half of dogs in the UK are overweight, and a second dinner every day is food your dog doesn't need.

It also matters for the pancreas. PDSA's pancreatitis guidance says a dog is at higher risk if it's overweight or has recently eaten high-fat foods (its examples are pork, cheese and butter). PDSA doesn't name cat food, and we won't claim it does, but it's one more reason to stop a daily habit this week.

Symptoms of pancreatitis often start suddenly, PDSA says, and it lists:

• vomiting

• eating less or not eating at all

• a painful tummy

• diarrhoea

• weight loss

See a vet: PDSA's advice is to book an appointment with your vet as soon as possible if your dog has any of those symptoms, and it warns that "pancreatitis can cause severe illness and even death if left untreated".

Now the cat. Cats Protection's line is short: "Cats should not be fed dog food." The balance of ingredients doesn't suit a cat's digestive system, the charity says, and won't provide all the nutrients a cat needs.

International Cat Care names four amino acids cats must get from their diet (taurine, arginine, methionine and cysteine) and says that "without them in their diet, cats become unwell". It also draws the contrast that matters in a shared house: "people and dogs can adapt to diets that have a fairly low protein content". Cats need much more protein.

So a cat that has switched itself onto the dog's food is likely missing nutrients it needs.

If your dog steals a mouthful once a month and is a healthy weight, steps 1 and 2 below will probably be the end of it. The rest is for homes where it happens every day.

How to stop your dog eating cat food: every fix, cheapest first

1. Set mealtimes and lift the bowl (free)

This costs nothing, and every later fix works better on top of it. PDSA is clear on dogs: "For most dogs, it's not a good idea to leave food out all day as it could lead to overeating." The RSPCA's floor is "feed your dog at least once a day, unless your vet advises otherwise".

Cats get the same treatment, in smaller portions. The RSPCA says to "try to split their daily intake into several small meals", and PDSA's advice on cat weight is to split the daily allowance into at least two meals, ideally more.

Here's the routine we'd suggest (the timing is our house rule; no charity sets one). Put both bowls down at the same time, give it 15–20 minutes, then lift whatever is left. Two or three sittings a day. Nothing stays on the floor in between.

Expect protest. A cat used to grazing may complain for a few days, and that's normal as long as it's still eating its meals. If it stops eating, call your vet. A cat with a medical reason to graze (your vet will know) is the exception; for that cat, use step 3 or step 7 instead.

2. Feed in different rooms, in a set order, with you in the room (free)

Two closed doors is the simplest separation there is. International Cat Care says cats should have "a quiet, calm part of their home where they can eat out of sight of other cats". We'd give a cat the same privacy from a dog.

As for order: dog's bowl down first, in the kitchen or utility room, so the dog is busy eating when the cat's bowl goes down elsewhere. (That's our suggestion, nobody's guidance.) Stay until both have finished. Then lift both.

In a flat, kitchen and bathroom do the job. The cat's room still has to meet the placement rules in step 3.

3. Move the cat's bowl up (low cost)

Where should you put the cat's food so the dog can't get it? Up. A worktop, a wide windowsill, a sturdy shelf, the top of a cat tree or a raised feeding station all work, provided the dog can't reach them.

Cats take to this readily. Cats Protection's blog says "cats love being up high" and that "it's how they stay safe and scope out their surroundings". The blog is about behaviour in general, and the point carries over: height suits the cat.

The placement rules follow the bowl upstairs. Cats Protection says to "place your cat's food and water bowls away from each other". The RSPCA is blunter: "Most cats won't eat if their food is placed too close to their toilet site."

International Cat Care adds that feeding spots should be "away from litter trays, entry points to the home, and busy areas". A bowl on the worktop next to the back door, with the water dish touching it, breaks three of those at once.

Older or arthritic cat? A cat that no longer jumps can't use this fix. Keep the bowl at floor level and use a gated or closed room (step 4) or a microchip feeder (step 7) instead. If your cat has recently stopped jumping up to places it used to reach, that's worth a vet check in its own right.

A big or agile dog can reach a worktop. If yours can, skip this step and go to the household table below.

4. A stair gate the cat can pass, or a cat-only room (moderate cost)

A stair gate across the doorway of the room where the cat eats, with a cat-sized gap at the bottom or mounted a few centimetres off the floor so the cat slips under, keeps out a dog too big for the gap. Gate plus raised bowl works better than either alone: even a dog that gets in can't reach the food.

Three things defeat a gate. Small dogs that fit the gap. Athletic dogs that clear it. And some cats simply won't walk under a barrier, however much food is on the other side.

The next step up is a cat-only room behind a closed door; a microchip cat flap on an internal door is one way to let the cat through and keep the dog out. Lift the bowl after 15–20 minutes there too (step 1).

5. Crate-feed the dog

If your dog already has a crate it uses as a den, feeding its meals in there with the door shut for those 15–20 minutes solves the problem from the dog's side and can help the crate feel like a good place to be. Our dog crate guide covers how to choose one and introduce it properly.

The caveat is firm. This is only for a dog that already accepts the crate. Shutting an unhappy dog in a box to eat turns a feeding problem into a welfare one.

6. Teach "leave it" as a back-up

Dogs Trust calls "leave" "an incredibly helpful command to teach your dog". Start with a tasty treat in one hand and a boring "leave it" item in the other. When your dog looks away from the boring item, mark that and reward with the tasty treat from the other hand.

Then "try it in new places and add in distractions", and if "your dog is struggling to leave it, go back to a stage where they were successful and progress more slowly".

Putting it last is our call. "Leave it" works when you're standing there, and the cat's bowl is down when you aren't. Manage first, train second; Dogs Trust's own advice to "store away any items you don't want your pup to get hold of" points the same way.

7. When a microchip feeder is the right tool

Some homes can't separate by room and time: a cat that must graze all day, no door you can put between the two animals, a small dog that fits every gate gap. For those, look at a microchip feeder, which opens only for the cat it's set up for. Our automatic feeder guide explains how to choose one and what it can't do.

Which fix for which household?

The right fix depends on which animal can reach which bowl. Steps 1 and 2 are in every row because they're free.

Our flat-living guide covers small-space setups for both species.

Cat eating dog food: the reverse problem

A dog's bowl left down all day is a buffet for a grazing cat, and dry food is easy to pick at a piece at a time. Why that matters for the cat is covered above.

The fix is the same routine run from the dog's side. Lift the dog's bowl after 15–20 minutes (step 1). Feed the dog in its crate or behind a door (steps 2 and 5). And make the cat's own bowl the better option by getting its placement right (step 3).

A cat that's avoiding its bowl because the dog hovers nearby may be eating the dog's leftovers instead. It looks like theft. The likely cause is avoidance, and a quieter spot for the cat's bowl is the first thing to try.

Safety first: A dog that growls, stiffens or stands over its bowl when the cat approaches may be guarding its food. Keep them apart at mealtimes and ask your vet or a qualified behaviourist for help.

House rabbits and guinea pigs: keeping them out of the cat and dog bowls

If a rabbit or guinea pig free-roams in the room where the cat and dog eat, dropped dry food and an unattended bowl are both within reach. Neither animal should be eating it.

The RSPCA puts hay and grass at 85% of a rabbit's diet. Guinea pigs, the RSPCA says, "can't synthesise vitamin C, which must be provided in their diet". Neither RSPCA page mentions cat or dog food; our reading is that food made for carnivores has no place in either diet.

A second reason applies to guinea pigs. The RSPCA says "the bacteria, Bordetella bronchiseptica, is the most common cause of respiratory disease in guinea pigs", and that "rabbits, cats and dogs can carry this bacteria, which can pass to guinea pigs and cause disease".

Its advice goes further than bowls: guinea pigs "should be kept away from dogs and cats". If yours already has supervised floor time in the same room, the practical minimum is that it never goes near their bowls or the dropped food around them.

What to do:

• Feed the cat and dog where the rabbit or guinea pig can't go, and lift the bowls before floor time.

• Use a raised cat station, placed where neither the rabbit nor the dog can reach it.

• Sweep up dropped dry food before floor time.

• Keep the small pets' own food out of the dog's reach too.

Rabbits and guinea pigs shouldn't share food with each other either: the RSPCA notes they need different diets and may need feeding separately, and PDSA advises pellets that are "grass-based and specifically made for guinea pigs".

See a vet: If a rabbit stops eating after getting into something it shouldn't, PDSA's advice is to contact your vet immediately. Rabbits need to eat regularly to keep their guts moving, and PDSA describes gut stasis as an emergency that can be fatal if it isn't treated quickly.

When it keeps failing

• The dog raids the moment you leave the room. The bowl is still down. Go back to step 1, and add a gate or crate (steps 4 and 5) for the times you can't be there. A camera pointed at the bowls shows who's eating what while you're out; our pet camera guide covers the options.

• The cat won't eat in the new spot. That's placement, not stubbornness. Check the litter tray, water, door and traffic rules from step 3, then move the station.

• The cat is losing weight, or the dog is gaining. Vet, now. Don't keep adjusting bowls while an animal's weight is moving. The RSPCA's dog diet advice is to contact a vet if eating or drinking habits change, and its cat diet page says the same for cats.

• The dog has stopped eating its own food and only wants the cat's. Stop topping up with cat food so that it "eats something". Set mealtimes and lift the bowl. If the dog then won't eat its own food, call your vet rather than waiting it out.

• Tension at mealtimes: the dog hovers, the cat bolts its food or hides. Separation by room is the fix. If the stress shows up outside mealtimes too, our calming aids guide covers when to involve a vet.

Two habits keep homes stuck: punishing the dog for stealing from a bowl that shouldn't have been down, and giving it cat food "as a treat".

The bottom line

Set mealtimes tonight and lift both bowls after 15–20 minutes. Then separate by room, then by height, then by gate, and only after that think about a crate or a microchip feeder.

If your next pet is a species you haven't kept before, our first-time pet owner guide covers the setup checklist, legal rules and running costs, species by species.