Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Can Cats Eat Mayo? Vet-Reviewed Nutrition Facts & Advice

Share

Can Cats Eat Mayo

Mayo is a condiment that can be found in many people’s pantries and refrigerators. But what about cats? Can cats have mayonnaise? While it may add some flavor to food, it’s not a good idea to add mayo to your cat’s food as a meal topping or flavor enhancer. While the basic ingredients aren’t considered toxic to cats, it’s still unhealthy for them. In general, mayo isn’t very nutritious, and it can be very high in fat. So, your cat won’t really benefit from having mayo added to their diet.

divider 1 paws

What’s Inside Mayo?

Mayo mainly consists of eggs, oil, and an acid like lemon juice or vinegar. It’s made by emulsifying these ingredients together until they form a creamy texture. By looking at these ingredients, it’s safe to say that basic mayo recipes don’t contain ingredients that are harmful to cats. However, some may have added seasonings, such as garlic or onion, that can be toxic in high enough amounts.

Mayo doesn’t contain any significant nutritional benefits for cats. If anything, its high-fat content and calories can end up causing health complications, like weight gain and obesity, for them.

Unfortunately, feline obesity is a common health issue found in cats in the US, with about 60% of domestic cats being overweight.1 Consuming too many calories and fatty snacks plays a role in contributing to excessive weight gain. So, it’s best to stick to a high-quality diet and feed your cat nutritious snacks. Even if your cat likes the taste of mayo, there are plenty of healthier options your cat can enjoy eating, and they can live without it.

mayonaise on wooden table
Image Credit by: margouillat photo, Shutterstock

divider 2 cats

What Should I Do If My Cat Eats Mayo?

If your cat ends up licking up a small amount of mayo, they shouldn’t experience any significant health complications. However, if they eat a large amount, they can get an upset stomach. So, be on the lookout for signs of gastrointestinal upset, such as nausea, licking the lips excessively, vomiting, and diarrhea. Your cat may also have less energy and become lethargic.

Make sure to contact your veterinarian if your cat vomits multiple times in a day or loses their appetite and doesn’t eat for over 48 hours. Refrain from giving your cat any home remedies without receiving consultation from your veterinarian first. This can just end up exacerbating their ailment and make your cat feel worse.

Can Mayo Help With Hairballs in Cats?

Mayo is commonly referred to as a home remedy for hairballs. The belief behind this remedy is that oily foods can act like a laxative that lubricates a cat’s digestive system and helps hairballs to pass. However, introducing oily foods to a cat with digestive issues can end up making them feel worse. So, the best option for a cat suffering from hairballs is to get your veterinarian’s advice.

Your veterinarian can run a full assessment on your cat and see if the use of laxatives is appropriate. They can develop a treatment plan and prescribe any medication if necessary. It’s also helpful to have a veterinary care professional assist you with monitoring and tracking your cat’s health. This will ensure that your cat receives the proper care they need and that appropriate adjustments to their treatment are made accordingly.

cat and owner and vet
Image Credit by: Stock-Asso, Shutterstock

divider 3 paws

Conclusion

While technically cats can have mayo as it isn’t toxic, it doesn’t have any nutritional benefits for them, and it may not be a safe at-home remedy for hairballs. So, there’s really no need to feed mayo to your cat. Since it doesn’t really contain toxic ingredients, you often don’t have to worry too much if your cat licks up a small amount. Do your best to prevent your cat from eating mayo, especially in large amounts. Feeding them more nutritious snacks and treats can help lower the risk of developing health issues and promote a happier and healthier lifestyle.


Featured Image Credit: HandmadePictures, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


Catster's Digital Magazine is Back!

Vet-approved health & behavior advice

Real cat stories & community features

Chatting About the Importance of Spaying/Neutering, Cat Retail Shopping Ban & Red-Level Storms | Chatty Cattys, Episode 30

In this episode of Catster’s Chatty Cattys podcast, Nicole and Dr. Karyn are celebrating a major legal win for pets before diving into...

Is Your Cat Happy? Here’s How You Can Tell

Cats have a reputation for being indifferent, even inscrutable. But despite their seemingly ambivalent appearance, cats experience many emotions, including happiness, and they...

Human Brains Age Like Cats – New Study Debunks the 7-Year Rule

If you’ve ever caught your senior cat staring blankly at a wall, wandering the halls at 3 am, calling out for no clear...

Chatting with Devin About Here! Have a Kitten, Fostering, & Why Two Are Better Than One | Chatty Cattys, Episode 29

In this episode of Catster’s Chatty Cattys podcast, Nicole & Dr. Karyn sit down with Devin, the founder and one-woman show behind “Here...

More related

Are British Shorthairs Friendly? The Surprising Answer!

British Shorthair cats are extraordinarily friendly! These adorable kitties with round faces and powerful bodies are known to be loyal, laid-back, and easygoing....

Catster’s Weekly Photo Contest Winners: Most Adorable Kitten (June 8, 2026)

Every week our team gets the privilege of sorting through our readers photos to choose what cats will win this weeks contest! See...

Ask Dr. Paola – Incontinence, Hiding & Plant Safety (September 8, 2025)

Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

Scaredy Cat Meaning: Examples & History of the Phrase

When someone’s acting timid or easily afraid, we sometimes call them “scaredy cats.” Most people know the phrase and when to use it,...

Keep reading

Is Baby Food the Secret to Homemade Cat Food? Read This First

You love your cat like they’re family (because they are). But there might be times when you’ve run out of your cat’s kibble and only have some (human) baby food in the cupboard. Or maybe you want to make homemade...

jars of baby food

Why Does My Cat Chase Me? 8 Vet-Reviewed Reasons & What to Do

Cats are cute and adorable even when they’re chasing you, but sometimes you just want a bit of space. To help you understand if your cat’s behavior is normal, you need to figure out why they’re chasing you in the...

Cat meowing at you

My Cat Just Threw Up Worms, What Do I Do? 7 Vet-Approved Tips

It is unsettling to see your cat throwing up worms. After all, worms are not something that you expect to see when your cat vomits. Such a sight can leave you in a panic about what to do. To help...

tired sick cat lying on bed

Sheba Cat Food Review of 2026: Recalls, Pros & Cons

Sheba Cat Food Review Summary Mars Inc. manufactures Sheba cat food, along with more than 40 other pet food brands. Sheba products are produced in the United States, except the Meaty Tender Stick Sheba cat treats, which are produced in...

Sheba Cat Food Review

How to Make a Cat Less Skittish: 10 Vet Approved Tips & Tricks

While some cats love to meet new people and explore novel environments, others emphatically don’t. Particularly skittish cats will sometimes disappear entirely in the presence of visitors. While some cats simply prefer to be left alone, it’s often possible to...

bengal cat gives a high five paw to the owner

Can a Litter of Kittens Have Different Fathers? Vet-Verified Facts & FAQ

Most of the time, littermates resemble each other a great deal, sharing colors and body shapes at the very least. But sometimes surprises crop up, with one or two kittens who look different from their siblings. So, what could be...

tabby mother cat feeding her kittens

Does My Cat Need a Veterinary Neurologist? 5 Vet Reviewed Signs

Nothing is more terrifying than having your cat diagnosed with a health condition. It’s tough to see them suffering, whether it’s a minor trauma during playing or an underlying neurological disorder. Many cats show prominent signs when they need a...

cat and vet.

8 Health Benefits of Coconut Oil for Cats: Vet Approved Guide & Tips

Coconut oil is a versatile and natural product that has gained popularity in recent years. It is derived from the meat of mature coconuts and is known for its numerous health benefits for humans. But did you know that coconut...

a kitten playing with coconut

Love Cats? So Do We! Join the Catster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Catster Email Newsletter

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.