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Can Cats Eat Peanuts? What You Need to Know!

Emma Stenhouse Profile Picture

By Emma Stenhouse


If your cat starts rubbing your legs when you’re getting snacks ready, you might be wondering if it’s okay to give your furry friend a little treat as well. If peanuts are one of your favorite snacks, is it safe for your cat to have one too?

In brief, plain peanuts are safe for cats to eat. There are a few exceptions, though, so let’s find out a little more about whether it’s a good idea to offer them to your cat. As with any food that isn’t designed specifically for cats, you should always speak to your veterinarian before offering peanuts to your cat.

Fun facts about peanuts

Technically, the peanut comes from the legume family, like lentils and peas. So despite their name, they’re not a true nut. Peanuts mature underground and are usually harvested 4-5 months after planting. Peanuts are also sometimes called ground peas or groundnuts because they grow underground.

Peanuts are the most popular nut snack in the U.S.A. and account for 66% of all the nuts bought. The U.S.A. produces around 3 million tons of peanuts each year, with Georgia, Texas, North Carolina, Florida, and Alabama producing the majority of the crop.

Most Americans eat 3 pounds of peanut butter per year. A 12-ounce jar of peanut butter contains roughly 540 peanuts.

There are four main varieties of peanut grown in the U.S.A.: Spanish, Valencia, Runner, and Virginia. Of the four, Runners account for 85% of production and are mostly used to produce peanut butter.

Good things about peanuts

Credit: ksuha scherbakova, Shutterstock

Peanuts are a great source of protein, and as obligate carnivores, cats thrive on a diet that’s high in protein. Per ounce, peanuts contain 7.31 grams of protein.

Peanuts are also rich in vitamin E, niacin, magnesium, copper, and biotin.

What cats really need, though, is animal protein. So while peanuts are high in protein, they don’t necessarily contain the most digestible version for cats.

Bad things about peanuts


Peanuts might be high in protein but they’re also high in fat. That means if your cat ate them regularly, they’d be at higher risk of becoming obese and suffering from a range of conditions developed as a result. Per ounce, peanuts contain 13.9 grams of fat. This fat is monounsaturated, also known as a “good fat,” but your cat’s digestive system isn’t designed to process nut-based fats.

Many peanuts are also coated in salt or other flavorings, which your cat definitely doesn’t need. These can be difficult for your cat to digest and can cause gastrointestinal issues.

How to feed peanuts to your cat safely

siberian cat_claudia125_Pixabay
Image Credit: claudia125, Pixabay

If you still want to feed your cat peanuts, here’s how to do it safely.

Only ever offer your cat untreated raw peanuts. The salts, spices, and other flavorings that may coat the peanuts that you like to eat could give your cat gastrointestinal issues and make them sick. Make sure the outer hard shell has been removed, as even a small part of this could cause a blockage in your cat’s digestive system.

Some cats may be allergic to peanuts, so watch out for the following symptoms:

  • Vomiting
  • Diarrhea
  • Skin irritation
  • Gastrointestinal problems

Only ever feed your cat a tiny piece of peanut, around a ¼ of a nut. Watch them carefully for any signs of discomfort, and if your cat shows any signs that they’re having trouble digesting this, don’t feed them any more.

Can cats eat peanut butter?

siberian cat indoor_Joanna Gawlica-Giędłek_Pixabay
Image Credit: Joanna Gawlica-Giędłek, Pixabay

If peanuts are non-toxic for cats, what about peanut butter? This is okay to give your cat as a very occasional treat, but make sure it’s a natural variety, with no added salt or sugar.

One thing to watch out for is that peanut butter can be a popular bait for mouse or rat traps. If your outdoor cat develops a taste for peanut butter, be careful that they’re not allowed access to anywhere that rodent traps laced with this tasty treat may have placed.

Wrapping it up

Peanuts might be one of the U.S.A.’s favorite nuts, but that doesn’t mean they’re a good treat option for our feline friends. While peanuts aren’t toxic to cats, and they do contain a large amount of protein, there’s no real reason for your cat to eat them.

You’d be better off choosing a high-protein, meat-based treat that’s been designed specifically for cats. Allow your cat to enjoy a few of those while you eat your peanuts, and you’ll both be happy!

For more information on what cats can eat, check out:

Featured Image Credit: Couleur, Pixabay

Written by

Emma Stenhouse Profile Picture

Emma is a freelance writer, specializing in writing about pets, outdoor pursuits, and the environment. Originally from the UK, she has lived in Costa Rica and New Zealand before moving to a smallholding in Spain with her husband, their 4-year-old daughter, and their dogs, cats, horses, and poultry. When she's not writing, Emma can be found taking her dogs for walks in the rolling fields around their home...and usually, at...Read more

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