Why?
Pasta is made from wheat flour and water, sometimes egg, and none of that is toxic once cooked. But it's mostly starch, which cats, as obligate carnivores, don't need. The real risk is what comes with it: tomato sauce with garlic and onion, cream, cheese, bacon, butter and salt.
How much?
One or two pieces of pasta boiled in unsalted water, with no sauce, cut small, once in a while. More than that just fills their stomach without feeding them.
The risks
- Sauces with garlic or onion are toxic
- Cream, cheese, butter or bacon: fat and salt
- Diarrhea or bloating if overdone
- Empty calories and weight gain
Your cat ate some: what now?
A few plain noodles are nothing to worry about. If your cat ate pasta with sauce, watch for vomiting, diarrhea or lethargy over 24 to 48 hours. If the sauce contained garlic or onion, call your vet even if your cat seems fine.
Better options
For a real carnivore treat, offer a small piece of plain cooked meat or fish. Cat treats are made for this too.
Common questions
Can cats eat spaghetti with tomato sauce?
No. Most tomato sauces contain garlic and onion, plus salt and sometimes cheese. If you want to share, set aside a plain noodle before adding the sauce.
Can cats eat mac and cheese?
It's best not to. It combines pasta with cheese, butter, milk and salt, so it brings fat and lactose your cat doesn't need, and some versions include onion or garlic powder.
This information is general and does not replace advice from a veterinarian. If your cat has swallowed something toxic, call your vet or an animal poison control center right away, without waiting for symptoms.