Can Dogs Eat Cat Food?
A little cat food now and then will not usually harm a healthy dog, but it is not a good regular food for them. Cat food is formulated for obligate carnivores and is much higher in protein and fat than dog food, which can cause stomach upset, weight gain and even pancreatitis if dogs eat it often. It also lacks the balance dogs need. Keep cat food out of reach and feed your dog a complete dog food.
If your dog sneaks a mouthful of the cat’s dinner, don’t panic - an occasional bite of cat food won’t usually harm a healthy dog. But cat food is not a suitable regular food for dogs, and it shouldn’t become a habit.
Why cat food isn’t right for dogs
Cats and dogs have different nutritional needs:
- Cats are obligate carnivores - they must eat animal-based ingredients - so cat food is much higher in protein and fat and richer overall.
- Dogs are omnivores - they need a more balanced mix, including nutrients cat food isn’t designed to provide in the right proportions.
So cat food is both too rich and nutritionally unbalanced for a dog eating it regularly.
The risks of regular cat-food eating
- Stomach upset - the high fat content commonly causes vomiting and diarrhoea.
- Pancreatitis - a rich, fatty diet can trigger this painful, potentially serious condition.
- Weight gain - more calories and fat add up.
- Strain on the liver and kidneys from the very high protein, especially over time.
- An unbalanced diet that misses what dogs actually need.
Dogs with a history of pancreatitis, kidney or liver disease, or a sensitive stomach are especially likely to react badly - for them, even a small amount is worth avoiding.
What to do if your dog eats cat food
For a one-off small amount, just watch for tummy upset. If your dog has eaten a large amount, it’s often best to skip their next meal and let the stomach settle before returning to normal feeding. Call your vet if you see repeated vomiting, diarrhoea, lethargy or signs of belly pain.
How to keep them apart in a multi-pet home
- Feed the cat up high - on a counter or shelf the dog can’t reach.
- Use a separate room or a microchip-activated feeder that only opens for the cat.
- Feed pets at set times and pick up bowls afterwards rather than leaving food out.
Stick to a complete, life-stage-appropriate dog food for your dog - see our guide to reading a dog food label to choose a good one.
References
- Can Dogs Eat Cat Food? - PetMD
- Can Dogs Eat Cat Food? - American Kennel Club
- Can Dogs and Cats Share Food? - Hill’s Pet
This article is general information, not veterinary advice. Contact your vet if your dog eats a large amount of cat food or seems unwell.
