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 Ketchup? Vet-Reviewed Diet Facts & FAQ

Share

Can Cats Eat Ketchup

When considering what kind of human foods are okay to give to our cats, we’re usually thinking in terms of actual food and not condiments, such as mayonnaise or ketchup. However, there’s always a chance our feline friends could manage to get their paws on a sauce or dressing, so it’s good to know how safe or unsafe they may be. Take ketchup, for example; Is it healthy for them?

The short answer is no! Your cat shouldn’t be eating ketchup, as it’s not great for them. Why is it so bad, though?

divider 1 paws

Is Ketchup Healthy for Cats?

Ketchup is unhealthy for cats and could even be toxic due to the many bad ingredients it contains for kitties.

Some of the main ingredients found in ketchup are harmful to your cat, specifically garlic and onion powder, as garlic and onion are toxic for felines. Garlic and onion are both a part of the Allium family, a species toxic to cats and dogs because of the sulfur compounds they contain. When members of this family are ingested, the sulfur compounds can cause damage to red blood cells, leading to what is known as Heinz body anemia (no, it’s not named after the ketchup brand!). If your pet is experiencing jaundice, lethargy, diarrhea, and loss of appetite, Allium toxicity could be the culprit. And garlic is approximately five times as deadly for cats as onion.

Also unhealthy for your cat is the amount of sugar and artificial sweeteners in ketchup. These ingredients aren’t toxic, but they aren’t good either. Sugar is just as bad for cats as it is for humans and can lead to weight gain, periodontal disease, diabetes, and more. Plus, because cats don’t typically consume sugar, their digestive system finds it more challenging to break down. And when it comes to the kinds of artificial sweeteners commonly found in processed foods like ketchup, none are suitable for kitty. Xylitol, in particular – even in small doses – may cause poisoning that can lead to seizures, liver failure, and death if not treated quickly enough, though there aren’t many studies documenting this in cats.

ketchup bottle open
Image by: JumpStory

Finally, ketchup has a fairly high salt content. While a tiny lick of salt won’t harm your cat, if they consume too much, it can lead to salt poisoning (and too much can be as little as 0.05 tablespoons of salt). Signs of salt poisoning include vomiting, tremors, lethargy, and disorientation and can show up as quickly as 3 hours after consumption.

Ketchup is quite unhealthy for our feline friends. While you don’t need to panic if they’ve gotten a nibble or two in, make sure they aren’t able to get to it and eat to their heart’s content!

divider 1 paws

What Happens if My Cat Eats Ketchup?

Luckily, the majority of cats aren’t going to want more than a couple of licks of ketchup. And that amount of ketchup shouldn’t harm them. However, if your kitty decides that ketchup is their new favorite thing, you’ll need to watch and make sure they don’t have access to it.

If they do eat a bit more than they should, you’ll probably see gastrointestinal issues arise, such as diarrhea and vomiting. These problems should resolve themselves in a day or two, though. However, if they don’t, or you’re seeing additional signs such as tremors, loss of appetite, jaundice, or disorientation, it’s time to immediately get them to a vet. These are an indication that your cat may have consumed too much ketchup and could be suffering from garlic or onion toxicity or salt poisoning.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

Preventative wellness PGV mention keep cat healthy Preventative wellness PGV mention keep cat healthy mobile

divider 1 paws

Final Thoughts

While it’s tempting to give our favorite feline a taste of our food to see if they like it as much as us, when it comes to ketchup, it’s really not a good idea. Ketchup contains way too many ingredients that are harmful to your cat, including sugar, salt, artificial sweeteners, and garlic or onion powder. Consuming too many of any of these could lead to a wealth of health issues for your pet, such as salt poisoning, Allium toxicity, weight gain, gastrointestinal problems, diabetes, liver failure, seizures, lethargy, tremors, jaundice, and even death.

However, you don’t need to panic if your cat has gotten a taste of ketchup. A tiny bit should only lead to stomach upset at worst (and chances are, kitty won’t like it enough to come back for more). Just keep an eye on your pet if you see they’ve eaten ketchup to make sure they’re fine.

See also: 

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.


Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

The Cat Biting Mistakes Most Owners Make (And What Works Instead)

Cat bites sent more than 400,000 people to emergency rooms in the US each year.1 Not scratches. Bites. And the reason they’re so...

Do Cats Cause Schizophrenia? Scientists Find a Link – Here’s What It Means

Being a fierce advocate (and occasional recipient of) mental health support and awareness, the term ‘crazy’ is not one I like to fling...

One in 100 Cats Gets Diabetes – Here’s How to Catch It Early

One in every 100 cats develops diabetes.1 That’s not a rare, unlucky condition reserved for cats with obvious health problems. It’s common enough...

Dramatic Rescue Turns Into Dramatic Reunion

What started as a routine call for the RSPCA became a heroic, five-hour rescue featuring one trapped and traumatized cat, an emotional family...

More related

Do Cat Paw Pads Change Color? Vet Approved Facts & FAQ

Lovingly referred to as toe beans by many people, a cat’s paw pads tend to be one of the most endearing features of...

17 Best Mouser Cats (With Pictures)

Cats are great companions and can make snuggling up to watch a movie cozier. They can even earn their keep by making sure...

Distemper Vaccine for Cats: Our Vet’s Guide

Feline distemper, more commonly known as feline enteritis or panleukopenia, is a highly contagious disease caused by a member of the parvovirus family...

Promising New Feline Kidney Disease Treatment Enters Trials in Japan

A new treatment for feline kidney disease has entered clinical trials, a crucial step toward becoming available to all cats suffering from this...

Keep reading

What Is High-Rise Syndrome? Cat Balcony Safety Explained

Cats have a way of turning a clumsy fall into a graceful landing by hitting the ground on all fours with their dignity well intact. While it’s true that they have a natural ability to position themselves during a fall...

cat sitting on the roof

Mobile Vet Clinics & Care: Our Vet Discusses Pros, Cons & FAQ

Your cat is wonderful at home but turns into some sort of Tasmanian devil the moment she gets to your veterinarian’s office. Is there an easier way to get her preventative care done so that you know she’s healthy? Let...

vet holding a cat

Balinese Cat Health Problems: 16 Vet-Reviewed Health Issues

The Balinese is a beautiful cat breed closely related to the Siamese, but these cats can be prone to certain health problems, some of which are quite serious, and many can be inherited and passed over to new generations of...

How To Keep Your Cat From Jumping After Surgery: 10 Vet-Approved Tips

There can be many reasons why your cat has undergone surgery, and we bet you’re just happy to have them home now. Regardless of the cause, your vet provided you with post-operative care instructions and may have asked that you...

cat lying on bed under the sheet

Do Cats Get Winter Coats? Vet-Verified Fur Facts & Care Tips

The trees turning colors and the weather growing colder aren’t the only changes that happen during the fall months. Like many dogs, cats also get winter coats. This fur coat is thicker and denser than their summer coat and serves...

black long-haired cat winter snow

Are Azaleas Poisonous to Cats? Vet-Reviewed Houseplants Examined

Azaleas are ornamental shrubs that are incredibly popular and loved by gardeners everywhere. Not only are they sturdy, resistant plants, but the flowers also turn stunning colors that range from a vibrant jewel color to a pretty, pale pastel hue....

Catster_Are Azaleas Poisonous to Cats

Cataracts in Cats: Vet Approved Causes, Signs & Treatment Options

Have you looked into your cat’s eyes recently, only to see a cloudy spot? If so, this may be a cataract. Cataracts aren’t as common in cats as in dogs, but they can occur (and some breeds, in particular, are...

Cat with cataract

How to Treat Mange in Feral Cats: Our Vet Gives 8 Tips & Tricks

If you’ve got a problem with some itchy feral felines, all of you—yes, yourself included—will be desperate to get it under control. Mange is one of several causes of really itchy skin, and it is particularly prevalent in populations of...

feral cat has a severe sarcoptic mange infection

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.