Can cats eat cheese?

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Can cats eat cheese?

Sometimes. A tiny piece of plain cheese is usually okay for many cats, but cheese is not recommended as a regular treat.

Many cats are lactose-intolerant and dairy can cause diarrhea or vomiting. Cheese is also an extra-calorie treat, and seasoned or spoiled cheeses can be unsafe.

What to do if your cat ate cheese?

Check what your cat ate: plain cheese is usually low risk in tiny amounts, but seasoned cheese (garlic, onion, chives) or moldy cheese is more concerning.¹⁵
Remove access to the cheese and keep the packaging so you can check ingredients and share them with your veterinarian if needed.
Offer fresh water and monitor for vomiting, diarrhea, gas, belly discomfort, reduced appetite, or unusual tiredness.¹²
Call your veterinarian if your cat ate a large amount, has repeated vomiting or diarrhea, seems painful, or will not eat or drink.¹²
If the cheese was moldy or spoiled and your cat develops tremors, wobbliness, agitation, or seizures, seek emergency veterinary care.⁵

Danger Level: Use Caution 2/5

Can cats eat cheese? | Is cheese safe for cats?

Can cats eat cheese? Is cheese safe for cats?

Sometimes, but it is not an ideal treat. Many cats do not digest lactose well, and milk or other dairy-based foods can cause stomach upset like diarrhea, gas, or vomiting.¹² If your cat tolerates dairy, a tiny piece of plain cheese once in a while is usually low risk. However, cheese is an extra-calorie treat, so it should be offered only in moderation and counted as part of your cat’s treat “budget.”³⁴ Cheese becomes risky when it contains unsafe add-ins (like garlic, onion, or chives) or when it is spoiled or moldy. Moldy foods (including moldy cheese) can contain tremorgenic mycotoxins that may cause vomiting, tremors, wobbliness, and seizures in pets.¹⁵

Why cheese can upset a cat’s stomach

Many pets do not have significant amounts of lactase (the enzyme that breaks down lactose), so dairy can cause diarrhea or other digestive upset.¹ Veterinary references describe lactose intolerance signs in cats as diarrhea, vomiting, bloating, and abdominal discomfort after ingesting milk.²

Cheese is not toxic, but it is still a treat

Even if your cat tolerates dairy, cheese is mostly extra calories and does not improve feline nutrition. Treat guidance recommends keeping treats under 10% of a cat’s daily calories so the main diet stays complete and balanced.³⁴

Avoid seasoned or spoiled cheese

Do not share cheese that contains garlic, onion, or chives, since these Allium ingredients can be harmful to cats.¹ Avoid any spoiled or moldy cheese. Moldy foods and compost can contain tremorgenic mycotoxins that can cause serious neurologic signs.⁵

Is cheese safe for cats?
What to do if your cat ate cheese
Symptoms to watch for (timeline)
How much is too much?
FAQ
References

Is cheese safe for cats?

Cheese is not considered a classic “toxic food” for cats, but it can still cause problems. Many cats do not digest lactose well, and dairy products can trigger diarrhea or other digestive upset.¹²

Lactose intolerance happens when the body cannot break down lactose, the sugar in milk. Veterinary references describe signs such as diarrhea, vomiting, bloating, and abdominal discomfort after ingesting milk.¹²

Even when a cat tolerates dairy, cheese should not become a habit. Cats should get their nutrition from a complete and balanced diet formulated for cats.⁴

Finally, safety depends on the type of cheese. Avoid cheese with garlic, onion, or chives, and do not offer spoiled or moldy cheese. Moldy foods can carry tremorgenic mycotoxins that may cause neurologic signs.⁵

What to do if your cat ate cheese

Identify what was eaten: plain cheese versus cheese with seasonings, sauces, or other ingredients.
Check for unsafe add-ins like garlic, onion, or chives. If present, contact your veterinarian for guidance because these ingredients can be harmful to cats.¹
If the cheese was moldy or spoiled, treat it as higher risk and contact a veterinarian or a pet poison resource for advice. Moldy foods can contain tremorgenic mycotoxins.⁵
If it was a tiny amount of plain cheese, offer water and keep your cat on their normal diet. Monitor for diarrhea, vomiting, gas, or belly discomfort.¹²
Call your veterinarian if vomiting or diarrhea repeats, lasts into the next day, or if your cat becomes lethargic, painful, or will not eat.¹²

Symptoms to watch for (timeline)

0 to 24 hours:

If cheese causes a problem, it is usually digestive upset like diarrhea, gas, vomiting, or abdominal discomfort. These signs are consistent with lactose intolerance and other food reactions.¹²
24 to 72 hours:

If diarrhea or vomiting continues, dehydration becomes more likely and your cat should be assessed by a veterinarian.¹²
Weeks to months:

Cheese should remain an occasional treat only. Long-term, frequent high-calorie treats can contribute to weight gain and diet imbalance. Treat guidance recommends keeping treats under 10% of daily calories and prioritizing a complete and balanced diet.³⁴

How much is too much?

There is no “healthy” cheese dose for cats, but a tiny piece is the safest approach if you choose to offer it at all. Start small to see if your cat develops diarrhea or vomiting, since many cats do not tolerate dairy well.¹²

Instead of focusing on a specific number of cubes, use a treat budget. WSAVA guidance recommends treats make up less than 10% of a cat’s daily calorie intake, which helps keep the main diet nutritionally balanced.³

Cats with sensitive stomachs or those on a veterinary-prescribed diet should generally avoid cheese unless your veterinarian specifically approves it.

FAQ

Can cats eat cheddar cheese?

A tiny piece of plain cheddar may be tolerated by some cats, but many cats do not digest lactose well and can develop diarrhea or vomiting after dairy. Start very small or avoid it if your cat has had issues with dairy before.¹²
Can cats eat cream cheese?

It is usually better to avoid it. Cream cheese is still dairy and can cause stomach upset in cats that do not tolerate lactose. If you offer any, keep it tiny and plain.¹²
Can cats eat cottage cheese?

Some cats may tolerate a small amount, but it is still dairy and can cause stomach upset in lactose-intolerant cats. Keep portions tiny and avoid seasonings.¹²
Can cats eat mozzarella?

A tiny piece of plain mozzarella is usually low risk for cats that tolerate dairy, but it should be rare because it is an extra-calorie treat.³⁴
Is cheese bad for cats?

Cheese is not usually “poison,” but it is not a necessary food for cats and it commonly causes digestive upset in cats that do not tolerate dairy.¹²⁴
Can cats eat cheese with garlic or onion?

No. Avoid cheese or sauces containing garlic, onion, or chives because these ingredients can be harmful to cats.¹
Can cats eat blue cheese or moldy cheese?

It is safest to avoid it. Moldy foods (including moldy cheese from the trash or compost) can contain tremorgenic mycotoxins linked to vomiting, tremors, and seizures. Seek emergency veterinary care if neurologic signs occur.⁵
How much cheese can I give my cat?

If you give any, keep it to a tiny piece and do it rarely. WSAVA recommends treats stay under 10% of daily calories so the main diet remains balanced.³
My cat ate a lot of cheese. What should I do?

Large amounts increase the chance of vomiting or diarrhea. Remove access, offer water, and contact your veterinarian if symptoms are repeated, your cat seems painful or lethargic, or your cat will not eat or drink.¹²

References

American Society for the Prevention of Cruelty to Animals. (n.d.). People foods to avoid feeding your pets. ASPCA Animal Poison Control Center. Retrieved February 7, 2026, from — https://www.aspca.org/pet-care/aspca-poison-control/people-foods-avoid-feeding-your-pets
VCA Animal Hospitals. (n.d.). Adverse reactions to food in cats. VCA Animal Hospitals. Retrieved February 7, 2026, from — https://vcahospitals.com/know-your-pet/adverse-reactions-to-food-in-cats
World Small Animal Veterinary Association. (2024, June). Feeding treats to your cat (v2). WSAVA. Retrieved February 7, 2026, from — https://wsava.org/wp-content/uploads/2024/06/Feeding-treats-to-your-cat-v2.pdf
MSD Veterinary Manual. (n.d.). Proper nutrition for cats. MSD Veterinary Manual. Retrieved February 7, 2026, from — https://www.msdvetmanual.com/cat-owners/selecting-and-providing-a-home-for-a-cat/proper-nutrition-for-cats
Pet Poison Helpline. (n.d.). Moldy food (mycotoxins). Pet Poison Helpline. Retrieved February 7, 2026, from — https://www.petpoisonhelpline.com/poison/mycotoxin/

Illustration of a cat with exclamation points in the background

DISCLAIMER

The information provided on Can Pets Eat It is for educational and informational purposes only and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always seek the guidance of your veterinarian or another qualified animal health professional before offering any food to your pet. Never disregard or delay seeking professional advice because of something you have read on this website. We make no guarantees about the accuracy or completeness of the content, and we are not responsible for any actions taken based on this information. Please be reasonable, use common sense, and seek professional guidance whenever you have concerns about your pet.

Can cats have cheese?