Can Cats Eat Pizza? 5 Facts About It

National Pizza Day is here, and it might just be the best day of the year. You may be curious as to whether or not you can feed your cat table scraps.

Wait, do cats like pizza? Find out why cats shouldn’t eat pizza by learning about the dangers posed by ingredients like cheese, tomato sauce with garlic, and common toppings like onions, mushrooms, and processed meats.

So, can cats eat pizza?

The real question is whether or not cats should eat pizza. The correct response is “no.” Let’s examine the reasons why you shouldn’t feed your cat pizza.


It is a common misconception among cat owners that their feline friends can digest lactose just fine. When kittens are weaned from their mother’s milk, they gradually lose the digestive enzyme that allows them to process lactose.

Therefore, the lactose content of cheese determines how likely it is that your cat will vomit after eating it. Cat obesity is on the rise, and a diet heavy in dairy products may contribute to this problem.

Cats are more susceptible to the gastrointestinal distress, vomiting, and diarrhea caused by the lactose found in fresh mozzarella cheese (like that found on margarita pizza) and processed cheese (like that found on cheap pizza).

Last but not least, our furry friends should avoid cheese because of its high salt content.

Tomato sauce, garlic & onion

What about cats and tomato sauce? Tomato sauce on pizza is not good for cats because it usually has a lot of salt.

However, garlic and onion, common ingredients in tomato sauce and pizza toppings, pose a greater risk to cats.

The allium family, which includes garlic, onions, and chives, is extremely toxic to felines. Disulfides and thiosulphates, found in garlic and onions, can cause a cat’s red blood cells to become extremely fragile and burst.

Hemolytic anemia, which is caused by the destruction of red blood cells, can be fatal to a cat even if only a tiny amount of garlic is ingested.

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Processed meats

Cats, being obligate carnivores, need a diet rich in animal-based protein and taurine. However, due to the high amounts of salt, fat, and chemical preservatives, processed meats are not a good choice for cats as a source of animal protein.

That includes pepperoni, ham, and bacon, all of which are standard pizza toppings. Sad sack!

Cooked salmon, lean turkey meat, or skinless chicken is what you should give your cat if you want to share some protein.

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Mushrooms, or more specifically the “umami flavor of a wide array of amino acids in protein,” seem to be a strange favorite of some feline residents. However, cats need to eat meat to get the protein they need.

You probably don’t have to worry about your cat if it eats a cooked mushroom off your pizza. Toxic spices like garlic and onion should be your main concern.

(Note: If your cat likes to venture outdoors, keep an eye out for any poisonous mushrooms that might be growing nearby.)

Hidden Dangers In Pizza For Cats

The toppings and the pizza crust are the pizza’s two main components. Unfortunately, there are potentially harmful components in all of these components.

Let’s take a closer look at these factors, and the reasons why you might not want to invite your feline friend over for pizza.


Cats should avoid the pizza toppings. Numerous pizza toppings and sauce ingredients are harmful to felines. Onions and garlic are two such examples.

Hemolytic anemia can develop if cats are fed garlic and onions. This occurs when the body destroys healthy red blood cells due to an abnormality within them.

If untreated, a cat suffering from hemolytic anemia caused by exposure to garlic or onions will likely die. If a cat is suspected of eating garlic or onions, take it to the vet immediately.


Whether you order it frozen or make it yourself, the pizza you eat is likely to be loaded with salt and sodium.

When compared to humans, cats are much smaller and more vulnerable to the effects of salt. Too much of it could cause salt poisoning.

There are about a thousand milligrams of sodium in a regular pizza slice. Nearly half of a person’s recommended sodium intake per day is here.

Because of their much smaller size compared to humans, cats can consume anywhere from five to ten times the human daily sodium intake from just one slice of pizza.

When a cat consumes too much salt, it becomes poisoned. The symptoms of this toxicity in cats include:

  • vomiting
  • diarrhea
  • decreased hunger
  • lethargy
  • incoordination
  • severe dehydration
  • urine output increases
  • seizures
  • death and coma

If your cat shows these symptoms after consuming something high in salt, take him or her to the vet immediately.

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Raw Dough

Raw pizza dough is another risk you take when making pizza at home.

Carbohydrates in the dough will be fermented by the uncooked yeast if a cat eats it before baking. Ethanol and carbon dioxide will be produced from this reaction.

The cat gets gassy and drunk after yeast ferments in the stomach. Warning indicators may include:

  • respiratory distress
  • retching
  • tremors
  • vomiting
  • staggering

Emergency veterinary care is necessary due to the potentially fatal bloating and alcohol poisoning. The amount of dough eaten will determine how severely the cat is poisoned and how well it is expected to recover.

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Inducing vomiting (if the ingestion was recent), gastric lavage, intravenous fluids, correction of acid-base abnormalities, and medications to stabilize the cat are typical treatments for cats that have ingested raw pizza dough.

Cats that have ingested alcohol due to eating raw pizza dough often require emergency hospitalization.

Pizza As A Snack For Cats

Normally, I wouldn’t think of pizza as a good snack for a cat. It’s probably fine to give your cat a small bite of your pizza every once in a while.

Pizza should not contain any potentially harmful ingredients.

It’s possible that your cat enjoys a bite or two of cheese from the top of your pizza. Some meat toppings could even pass as a snack by themselves.

Cats have a natural intolerance to lactose, so milk is not a good option. Cheese, on the other hand, contains a much lower concentration of lactose, and most cats can digest even modest amounts without any ill effects.

Is Pizza Healthy For Cats?

Absolutely not is the correct response to this inquiry. Your cat may enjoy a very small piece of pizza on occasion, but this is in no way a healthy treat for your pet.

Pizza is loaded with unhealthy fats, salt, and carbs even if you remove all the potentially harmful ingredients.

It’s safe to say that felines are strict meat eaters. They can safely eliminate grains from their diet and focus instead on consuming a high percentage of their calories from meat.

Carbohydrate content in pizza is sky high overall, but particularly in the crust. Overweight cats that are fed a diet high in carbohydrates are at risk for developing diabetes and cardiovascular disease.

If you want to strengthen your relationship with your cat, I suggest you switch to healthier treats.

You can opt for store-bought snacks, or you can snack on some non-preserved meat, cheese, or even peanut butter.


As was previously mentioned, many pizza toppings are toxic to cats and should be avoided. However, pepperoni is by far America’s favorite pizza topping.

Cats are drawn to pepperoni because of its strong odor and high fat and protein content. Preservatives are used in pepperoni to keep it red and extend its shelf life.

Nitrates and nitrites aren’t good for cats because they’re used as preservatives.

Beef and pork are the main ingredients in pepperoni, along with a few other spices like garlic powder, paprika, mustard, and fennel seeds. Pepperoni is safe for cats when consumed in moderation.

Even though it is not poisonous, only give your cat a very small amount to eat. Due to its high levels of salt and fat, as well as its preservatives, pepperoni is not a particularly healthy food option.

Many cats may experience gastrointestinal distress from the pepperoni because of its spicy flavor.

Cat Accidentally Ate Pizza

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Some cat owners wonder if it’s okay to feed their feline friends pizza as a special treat.

See also:  How Come Kittens Prefer Emery Boards? (For A Reason, Of Course!)

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Sometimes, however, cats are sneaky and will eat garbage or steal food from your plate or counter when you aren’t looking.

Anxiety can rise when a pet consumes something it shouldn’t. If this ever happens to you, there are measures you can take to ensure your cat receives the best care possible.

You should start by watching your cat to see how it acts. Are they acting typically and moving around? Do they look like they hurt? Where have they gone? Is there any indication of sickness or diarrhoea?

Check out what’s left of the food they messed with. Determine the quantity and composition of the food consumed.

If you suspect that your pet has consumed something that could be harmful, contact your vet or the ASPCA’s Pet Poison Hotline immediately. You can reach the Hotline at 1-888-426-4435.

Even if the cat seems fine now, you should keep an eye on it for the next 24 hours just to be safe. Observe for signs of nausea, vomiting, diarrhea, a lack of appetite, hiding, and a failure to urinate or defecate.

Please contact your cat’s veterinarian if you have any further questions or concerns.

Related Questions

Can Cats Eat Pizza Rolls?

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Since pizza rolls are essentially just pizza, all the advice in this article should also apply to them. Moderate consumption of the cheese or outer dough (if baked) is acceptable.

If the interior contains strong odorants like onions or garlic, a cat may want to avoid it. While pepperoni may tempt your cat, it could cause him to have stomach problems.

Can cats eat pizza crust?

Your cat probably won’t get sick from nibbling on some pizza crust that’s been cooked and served. Raw dough contains yeast, which can be fatal to cats because it expands and ferments in the stomach.

Your cat probably won’t care much for raw dough or plain pizza crust.

Is it true that felines can’t stomach pizza? On this, National Pizza Day, you will no longer feel guilty about eating all the pizza for yourself.

Who could possibly have a problem with that? Find out what you can feed your cat and what you shouldn’t!

Is Pizza Sauce Safe For Cats To Eat?

Cats can safely consume pizza sauce because it is typically made with cooked tomatoes. On the other hand, garlic and onions are common ingredients in pizza sauces.

Even though a cat probably wouldn’t have any problems eating pizza in the small amounts they would eat, I still wouldn’t recommend it.

Can Cats Eat Pineapple On Pizza?

It’s an intriguing query, considering that many people are still divided over whether or not pineapple belongs on pizza.

If you’re of the same mind as me and believe that pineapple belongs on pizza, then by all means, feed it to your cat.

It’s safe, but I haven’t met many felines who appreciate pineapple’s flavor.

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