As a pet owner, there are times when you may feel tempted to share your food with your furry friend, especially if you’re eating something like pizza. After all, who doesn’t love a good slice? But if you’re wondering whether it’s safe for cats to eat pizza, the answer is a bit more complicated than a simple “yes” or “no.” Cats have very specific dietary needs, and not all human foods are suitable for them. In this article, we will explore whether Can Cats Eat Pizza?, the risks involved, and what you should consider before sharing that slice with your feline friend.
Can Cats Eat Pizza? The Short Answer
While pizza is a delicious treat for humans, it is not the right kind of food for cats. Cats are obligate carnivores, which means their bodies are designed to thrive on animal-based proteins. Pizza, on the other hand, is full of ingredients that cats don’t need and could potentially harm them. Even though a small bite may not immediately cause harm, regularly feeding your cat pizza or similar human food can lead to serious health problems. In the following sections, we will break down why pizza isn’t a suitable food for your cat.
Why Cats Shouldn’t Eat Pizza
1. Dairy Products – The Cheese Problem
Cheese is a major ingredient in most pizzas, but for many cats, dairy is a big problem. A large percentage of cats are lactose intolerant, meaning they cannot properly digest lactose, the sugar found in milk and dairy products. This lack of digestion can cause gastrointestinal issues, including:
- Diarrhea – Because the lactose is not absorbed properly, it can cause loose stools.
- Vomiting – Dairy can upset your cat’s stomach, leading to vomiting.
- Stomach cramps – Some cats experience pain and discomfort when consuming dairy.
Even if your cat isn’t visibly lactose intolerant, dairy products like cheese can still be hard on their digestive systems. It’s always best to avoid feeding dairy products to cats, as they don’t provide any nutritional value for them and can lead to unnecessary digestive upset.
2. Excessive Salt – Too Much Sodium for Cats
Pizza is often loaded with salt, whether it’s in the dough, the toppings, or the sauce. While humans can handle high amounts of salt, cats are much more sensitive to sodium. Too much salt can cause:
- Dehydration – Salt can make your cat thirsty, leading to excessive drinking, which can strain their kidneys over time.
- Kidney damage – Long-term exposure to excessive salt can lead to kidney problems.
- High blood pressure – Excessive sodium can contribute to high blood pressure, which is not good for your cat’s overall health.
Cats need a controlled amount of salt, which is typically found in their regular food. Adding pizza to their diet will only contribute to excessive sodium intake, which could lead to long-term health complications.

3. Garlic and Onions – Toxic Ingredients
Garlic and onions, common ingredients in many pizza recipes (especially in pizza sauces and toppings like garlic bread), are toxic to cats. These foods contain compounds that can cause oxidative damage to your cat’s red blood cells, leading to a condition called hemolytic anemia. Symptoms of garlic and onion toxicity in cats include:
- Lethargy – Your cat may seem unusually tired or weak.
- Vomiting and diarrhea – These gastrointestinal symptoms can occur within hours of ingesting garlic or onion.
- Pale gums – Anemia from garlic or onion poisoning can cause your cat’s gums to appear pale, as they are not receiving enough oxygen.
- Rapid breathing or panting – This can occur as a result of decreased oxygen levels in the blood.
Even small amounts of garlic or onion can be harmful to cats. It’s best to avoid any pizza that contains these ingredients and ensure that your cat never consumes food with garlic or onion.
4. Spicy Toppings – Risk of Digestive Problems
Pizza with spicy toppings, such as hot peppers or spicy sausage, is not a good choice for cats. Spicy foods can irritate your cat’s digestive system, leading to:
- Upset stomach – Spices can cause inflammation in the stomach lining, making your cat feel nauseous.
- Diarrhea – Spicy foods often irritate the intestines, leading to loose stools.
- Gas and bloating – Spicy foods can cause discomfort in your cat’s digestive tract, resulting in bloating or flatulence.
Cats generally do not tolerate spices well, so it’s important to keep spicy foods far away from your pets.
What Happens If My Cat Eats Pizza?
If your cat accidentally eats a small amount of pizza, the immediate risks may not be as severe. However, if your cat consumes a larger portion or if the pizza contains harmful ingredients like garlic, onion, or excessive salt, you could see symptoms of distress. These might include:
- Vomiting – Your cat may throw up as a natural response to the upset stomach.
- Diarrhea – A common side effect of consuming pizza, especially if it contains dairy or spicy ingredients.
- Lethargy – Your cat may become sluggish or lethargic as a result of the high-fat content or ingredients that irritate their stomach.
- Tummy aches – Your cat may experience discomfort or pain in their stomach area.
In most cases, these symptoms will subside once the pizza passes through your cat’s system. However, if your cat exhibits more severe symptoms such as prolonged vomiting, blood in stools, or difficulty breathing, you should contact a veterinarian immediately.
What to Do if Your Cat Eats Pizza
If your cat has eaten pizza, don’t panic. Here are a few steps you can take to ensure your cat remains safe:
- Monitor Your Cat Closely – Watch for any signs of distress, such as vomiting, diarrhea, lethargy, or changes in behavior.
- Limit Their Food Intake – After a pizza mishap, it’s a good idea to avoid giving your cat any additional food for a few hours, especially if their stomach seems upset.
- Contact Your Vet – If your cat consumed a significant amount of pizza or any pizza with garlic, onion, or spicy ingredients, it’s a good idea to call your vet. They may advise bringing your cat in for an examination or monitoring them at home.

Can Pizza Ever Be Safe for Cats?
While pizza is generally not recommended for cats, there are some ways you could create a “cat-friendly” version. For example, you could make a homemade pizza with safe ingredients for your cat, such as:
- Plain, unsalted dough – Avoid adding any salt or seasoning to the dough.
- Cooked chicken or turkey – Avoid using processed meats like pepperoni, sausage, or bacon. Instead, go for plain, cooked chicken or turkey without seasoning.
- Cheese in moderation – If your cat is not lactose intolerant, you can add a small amount of cheese, but remember that too much cheese can still cause digestive issues.
- No garlic or onions – Always avoid adding garlic, onions, or any other harmful ingredients to your cat’s food.
This way, you can treat your cat to a pizza-inspired snack without the risk of harmful ingredients.
Healthier Alternatives to Pizza for Your Cat
Rather than sharing pizza with your cat, consider these healthy and safe alternatives:
- Plain cooked chicken or turkey – A lean protein that is easy on your cat’s stomach.
- Tuna or salmon – A fishy treat that many cats love, as long as it’s boneless and not seasoned.
- Commercial cat treats – There are many high-quality, cat-specific treats that are made with your pet’s health in mind.
- Catnip – A natural treat that many cats enjoy and is entirely safe for them.
These alternatives are healthier and provide the nutrients your cat needs to stay happy and well-fed.
Frequently Asked Questions
1. Is cheese safe for cats to eat?
While cheese is not toxic to cats, many cats are lactose intolerant. Feeding cheese to a lactose-intolerant cat can cause stomach upset, diarrhea, or vomiting. Even cats that can tolerate cheese should only have it in moderation.
2. Can pizza crust be harmful to cats?
Pizza crust, on its own, is not toxic but is not ideal for your cat. The crust often contains salt, sugar, and flour, none of which are beneficial to cats. It can also be hard for them to digest.
3. Can cats eat pepperoni pizza?
Pepperoni pizza is not safe for cats due to the high-fat content, excessive salt, and spices used in the pepperoni. Additionally, pepperoni often contains preservatives and seasonings that are harmful to cats.
4. What should I do if my cat eats pizza with garlic or onion?
Garlic and onion are toxic to cats. If your cat eats pizza with these ingredients, it’s important to contact your vet immediately. Even small amounts can lead to serious health problems.
5. Is there a safe way to share pizza with my cat?
It’s best not to share pizza with your cat at all. If you want to treat them to a pizza-inspired snack, make a homemade version with safe ingredients like plain cooked meat, unsalted dough, and a small amount of cheese, but keep it to a minimum.
Conclusion
In conclusion, while the idea of sharing a slice of pizza with your cat might seem tempting, it’s not a safe or healthy choice for them. Pizza contains several ingredients that can be harmful, including dairy, garlic, onions, and excessive salt. Instead of giving your cat pizza, consider providing them with healthier, cat-friendly alternatives that are more suited to their dietary needs. By keeping harmful foods out of your cat’s reach, you’ll ensure they stay healthy and happy for years to come.

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