March 12, 2023 |13 min read
Can Cats Eat Dog Food? What Cat Owners Should Know
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Has your cat ever sneaked a few bites from your dog’s bowl? If you’re wondering, “Can cats eat dog food?”, an occasional bite of ordinary dog food is generally harmless to a healthy cat. The bigger concern is regular feeding.
Cats and dogs have different nutritional needs, and dog food may not provide enough of certain nutrients cats need to stay healthy. Over time, relying on dog food can lead to nutritional deficiencies that affect your cat’s heart, eyes, and overall health.
Let’s look at four reasons to keep your cat’s meals species-appropriate, what to do if your kitty eats dog food, and how to prevent repeat visits to the dog’s bowl.
Is It Safe for Cats to Eat Dog Food?
A healthy cat can usually eat a few bites of ordinary dog food without harm. However, dog food isn’t suitable for cats as a regular diet because it may not provide all the nutrients they need. Potentially harmful ingredients can cause immediate problems, while nutritional deficiencies may develop over time.[1][2]
What’s the Difference Between Cat Food and Dog Food?
Cats are obligate carnivores, meaning they rely on nutrients found in animal tissues to meet their dietary needs. Dogs can use a wider range of ingredients, so their food follows different nutritional requirements.
Cat food generally provides more protein and specific nutrients, including taurine, preformed vitamin A, and arachidonic acid. Dog food may not supply enough of these nutrients to keep a cat healthy over time.
Nutrient |
Cat Food |
Dog Food |
|
Protein |
Formulated to meet cats’ higher protein needs. |
Formulated to meet dogs’ protein needs, which may be lower. |
|
Taurine |
Must provide enough taurine, an essential amino acid for cats. |
May not provide enough taurine to meet a cat’s needs. |
|
Vitamin A |
Provides preformed vitamin A that cats can use directly. |
May rely partly on beta-carotene, which cats cannot convert into sufficient vitamin A. |
|
Arachidonic Acid |
Supplies this essential fatty acid. |
May not provide enough for cats because dogs can produce it from other fatty acids. |
Cats also need the right balance of vitamins, minerals, and fatty acids for their age and health. So it is important to choose a complete and balanced cat food formulated for your cat’s life stage, such as kitten growth or adult maintenance. Cat patents must check the package’s nutritional adequacy statement to confirm that the food meets feline nutritional requirements.[3][4][5]
4 Reasons You Shouldn’t Feed Your Cat Dog Food
Sharing a home with a dog can make it tempting to let your cat sample the kibble or treats in the other bowl. A few bites of ordinary dog food are generally harmless to a healthy cat, but making it a regular meal can create nutritional problems.
Here are four reasons to keep your cat’s diet tailored to feline needs:
1. Cats Need More Animal Protein Than Dogs
Cats are obligate carnivores, meaning they depend on animal-based foods to meet specific nutritional needs. They need sufficient protein to maintain muscles, support normal body functions, and stay active. AAFCO nutrient profiles set minimum crude protein levels of 26% on a dry-matter basis for adult cats and 30% for growing kittens, compared with 18% for adult dogs and 22.5% for puppies.
Dogs can thrive on a wider range of ingredients, but their food may not provide the protein levels or nutrient balance your cat needs. Your cat’s needs also change with age. So, it’s important to choose food formulated for your cat’s species and life stage rather than relying on dog kibble. Check the nutritional adequacy statement on the package to confirm that the food meets the appropriate life-stage requirements.[7]
2. Dog Food May Not Meet Cats’ Essential Nutrient Requirements
Cats need specific nutrients in their diet, including taurine, preformed vitamin A, and the essential fatty acid arachidonic acid. Dog food may not supply enough of these nutrients to meet a cat’s needs.
Taurine supports heart function, vision, and reproduction. A deficiency can lead to dilated cardiomyopathy, a condition that weakens the heart muscle, or retinal degeneration that can impair vision. Inadequate taurine intake can also affect reproductive health and kitten development.[8]
Cats also need preformed vitamin A because they cannot convert beta-carotene into sufficient usable vitamin A. Arachidonic acid supports normal growth, skin health, and reproductive function. If dog food replaces a cat’s regular diet over time, inadequate intake of these nutrients can lead to serious health problems. Choose complete and balanced cat food formulated for your cat’s life stage.
Alongside an appropriate diet, make sure your cat has access to fresh water. If your cat doesn’t drink enough water or if your cat has been eating dog food regularly, your veterinarian can help you identify possible causes.
3. Regularly Eating Dog Food Can Cause Nutritional Problems
Dog food may provide calories, protein, and fat, but it isn’t formulated to meet all of a cat’s nutritional requirements. If it regularly replaces complete and balanced cat food, your kitty may develop nutrient deficiencies that affect growth, muscle maintenance, body condition, and overall health. Kittens are particularly vulnerable because they need the right balance of nutrients to grow and develop properly.
A sudden switch to a different food can also cause temporary digestive upset, including vomiting or diarrhea. These symptoms don’t automatically mean your cat has a nutritional deficiency. Deficiencies generally develop over time when a diet consistently fails to supply enough of a required nutrient. The risk depends on the food’s nutritional composition and how much of your cat’s usual diet it replaces.
If dog food has become a regular meal, ask your veterinarian how to return your cat to an appropriate diet.
4. Some Dog Food and Treat Ingredients Can Be Harmful to Cats
Not all dog food or treats are toxic to cats, but certain ingredients can pose a health risk. Onions and garlic, including powdered forms, can damage red blood cells and cause anemia in cats. The risk depends on the ingredient and the amount consumed, so don’t assume a product is safe just because it’s sold for pets.
Before offering your cat a dog treat, read the ingredient list carefully. Seasonings, flavorings, and other additives may make a treat unsuitable for your feline friend, even if the main ingredients seem harmless. If you can’t confirm that a treat is safe for cats, choose a treat made specifically for them instead.
If your cat eats a product containing onion or garlic, contact your veterinarian for advice rather than waiting for symptoms to appear.
What Happens If Your Cat Eats Dog Food?
If your cat sneaks a few bites of ordinary dog food, there’s usually no reason to panic. A healthy cat will often be fine after an isolated nibble, especially if the food doesn’t contain ingredients that are harmful to cats. However, some cats may develop temporary digestive upset, such as vomiting, diarrhea, or a reduced appetite, particularly after eating a larger amount or trying an unfamiliar food.
The bigger concern is repeated consumption. If dog food regularly replaces your cat’s usual meals, it may not provide the nutrients your feline needs to stay healthy. Over time, this can lead to nutritional deficiencies and affect your cat’s overall health.
What happens next depends on how much your cat ate, what’s in the food, and your cat’s age and health. A few pieces of kibble are different from eating a full bowl, and a cat with an existing health condition may need extra care. Check the ingredients and monitor your cat after an accidental snack.[1][2]
What to Do If Your Cat Ate Dog Food
If your cat has eaten dog food, stay calm and start by checking the ingredient list. Note how much your cat ate and whether the food contains potentially harmful ingredients, such as onion or garlic. A healthy cat that sneaks a few bites of ordinary dog food can generally be monitored at home.
Return your cat to its usual complete and balanced cat food at the next meal, and make sure fresh water is available. Avoid making further dietary changes unless your veterinarian recommends them.
Contact your veterinarian promptly if the dog food contains a potentially toxic ingredient, your cat develops vomiting or diarrhea, or you notice other unusual changes in their behavior or appetite. If your cat has been eating dog food regularly instead of cat food, arrange a veterinary consultation to discuss its diet and whether nutritional deficiencies may have developed.[1][2]
How to Stop Your Cat From Eating Your Dog’s Food
Even with different nutritional needs, cats and dogs can be curious about what’s in each other’s bowls. If your kitty keeps sneaking bites of your dog’s food, a few changes to your feeding routine can help prevent dietary crossover.
Establish regular feeding schedules instead of leaving food out all day. Scheduled meals can help discourage food stealing, make it easier to manage portions, and reduce tension between pets. They can also make it easier to give medication with meals when needed.[1][3]
If your cat still makes a beeline for the dog’s bowl, try these practical steps:
-
Feed your pets in separate areas. Use different rooms or enough distance to keep each pet focused on its own meal.
-
Remove uneaten dog food. Pick up the bowl once your dog finishes eating so your cat can’t return for a snack later.
-
Supervise mealtimes. Keep an eye on both pets, especially in multi-cat households or homes with several animals, and redirect your cat if it approaches the dog’s bowl.
Choosing the Right Food for Your Cat
Choose cat food formulated for your cat’s life stage, whether you have a growing kitten, an adult cat, or a senior kitty. Check the packaging for a nutritional adequacy statement confirming that the food is complete and balanced for the intended life stage. The ingredient list can provide additional information, but the adequacy statement is a better guide to whether the food meets established nutritional standards.
If you’re considering PrettyPlease, verify its current formulation and nutritional adequacy statement to ensure it meets your cat’s needs. You can also explore PrettyLitter for more information about the brand.
Above all, keep your feline friend on a complete and balanced cat food, and don’t use dog food as a replacement for their regular meals.
Can Cats Eat Dog Food? FAQs
Can kittens eat dog food?
Kittens should not eat dog food as a regular meal. They need a carefully balanced diet to support rapid growth and development, and dog food may not provide the nutrients they need. If your kitten eats a few bites accidentally, monitor them and contact your veterinarian if you have concerns.
Can cats eat dry dog food?
A few pieces of dry dog food are generally harmless to a healthy cat. However, dry dog kibble isn’t formulated to meet all feline nutritional needs. Regularly feeding it can lead to nutritional deficiencies over time. Keep your cat on complete and balanced cat food formulated for their life stage.
Can cats eat dog treats?
Cats shouldn’t routinely eat dog treats because these may not meet feline nutritional needs. Some treats may also contain ingredients, such as onion or garlic, that are harmful to cats. Check the ingredient list carefully and choose treats made specifically for cats. If your cat eats a potentially toxic ingredient, contact your veterinarian.
