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 Drink Salt Water? Vet-Reviewed Facts & Advice

Share

Can Cats Drink Salt Water

We all grew up knowing that we shouldn’t drink salt water. That said, gargling with salt water seems to be a safe practice. It can even reduce tooth and gum pain. But we know better than to swallow the saltwater for fear of becoming dehydrated or hurting our kidneys. It would make sense that this is the case for all living creatures on this planet. But this is not true! While we humans should never drink it to try and curb our thirst, cats definitely can drink salt water! Here’s what you should know.

divider 3 pawsCats Can Drink Salt Water and Survive

According to an article published in the American Journal of Physiology, cats have the biological capacity to process salt water in their bodies. Their kidneys are capable of secreting excessive sodium so the water can hydrate them. This doesn’t mean that cats can live on salt water and food alone. While not guaranteed, continual intake of so much salt could lead to the same dehydration that humans tend to experience after drinking salt water. Cats don’t need seawater to survive, but salt water can help them survive when times get tough.

On average, a 5-kg cat needs around 250 ml of water a day. 250 ml of seawater contains about 8.75 g of salt, and the fatal dose of salt for a 5-kg cat would be 20 g of salt. In other words, this ability works within certain limits, so please don’t go out of your way to give salt water to your cat.

A proper species-appropriate diet and fresh, clean water from the tap are all it takes to keep your cat happy. However, since not all cats are effective at drinking water, they might need to get some of their hydration from ingesting moisture-rich food, such as fresh or wet cat food. But don’t worry if you see your cat drinking the salt water out of your swimming pool—unless they seem lethargic or sick afterward.

cat on the Black Sea in Odessa_Anna Vangorodska_shutterstock
Image Credit: Anna Vangorodska, Pixabay

Health Effects of Cats Drinking Salt Water

Although sodium is important for your cat’s health and they don’t seem to have problems dealing with excess amounts of it, they should get it in the form of animal meat, organs, and bones. Saltwater isn’t something that your cat should get used to drinking unless they are stranded someplace where fresh water isn’t available.

There is also no reason to add salt to your cat’s water to ensure that they get enough sodium in their diet. Making sure that they are fed high-quality food that’s formulated especially for cats should be all it takes to keep your cat filled up with the right nutrients needed to maintain a long and happy life.

What to Do If Your Cat Won’t Stop Drinking Salt Water

It’s nothing to worry about if your cat takes a drink from your saltwater fish tank or swimming pool now and then. But if you find that they are continuously doing so throughout the day, it is a good idea to schedule an appointment with your veterinarian. They could have developed a mental condition or a health problem that drives them to drink the salt water. Whatever the case, your vet can help you identify the problem and come up with a solution.

divider 2 cats

The Bottom Line

A drink of salt water here and there is not likely to hurt your cat in any way. But keep an eye out for how much salt water they are drinking to make sure that they do not become obsessed with it. Clean fresh drinking water is the only kind of water that you should make plentifully available for your cat, both indoors and outside. Doing so should curb any interest that they have in salt water.

Related Reads: 


Featured Image Credit: dimitrisvetsikas1969, Pixabay

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 Big Cat Tourism, Lion Hunting, and Learning From Our Mistakes | Chatty Cattys, Episode 26

In this episode of Catster’s Chatty Cattys podcast, Nicole and Dr. Karyn dive into the dark side of big cat tourism and the...

Why Cats Sit by the Door (But Don’t Go Through It)

Door-sitting is one of those quirky little habits that almost every cat owner experiences at some point. You know how it goes: a...

Six Legs Are Better Than Three – How A Tripod Dog and Kitten Found Friendship Through Recovery

Sometimes the most meaningful friendships begin in the most unexpected places. At a Maryland veterinary hospital operated by Last Chance Animal Rescue, two...

The Original Space Invaders – Why Zero Respect for Personal Boundaries Is a Good Thing

Cats have a reputation for being independent, and in many ways they are. But anyone who has tried to work at a laptop...

More related

How Much Do Tuxedo Cats Cost? 2026 Price Guide

A Tuxedo cat is not a specific breed. It is a distinctive white-and-dark bicolor pattern that makes them look like they’re wearing a...

8 Vet-Verified Seal Point Cat Facts: Info, Pictures & Breeds

Seal point cats have an ivory, cream, or light fawn coat with dark brown/brownish black (seal) points on the face, ears, paws, and...

Domestic Longhair Cat Breed: Info, Pictures, Temperament & Traits

The Domestic Longhair cat isn’t any one specific breed. Rather, it’s just the common name for a house cat with long hair. They...

Lead Poisoning in Cats: Our Vet Explains the Causes, Signs & Treatment

Lead poisoning in cats is an issue you definitely want to avoid for your pet, and it’s a diagnosis that no cat owner...

Keep reading

What to Do With Cats After a Natural Disaster? 8 Post Hurricane Tips (Vet Reviewed)

Living through a natural disaster like a hurricane takes resilience, tenacity, and planning. The powerful storms fundamentally alter landscapes and lives before moving on, leaving untold destruction and lots of cleaning up to take care of. Those who live in...

fireman holding kitten

Do Cats Get Senile? Vet-Approved Signs & How to Help

As cats age, their behavior can change. They may sleep more, have less energy, suffer from joint problems, and suffer a decline in their cognitive functioning. By age 16, more than 80% of cats are affected by feline cognitive dysfunction,...

old tabby cat lying on bed

Do Scottish Fold Cats Shed a Lot? Vet Approved Facts & Grooming Tips

Every cat breed has its own special quirks and characteristics. The Scottish Fold is no different. Its eye-catching appearance and playful personality make it a favorite amongst feline fans. But do these cats shed a lot? And if so, how...

Scottish Fold

Will Certain Scents Calm Cats? With 6 Soothing Examples

We’ve all heard anecdotes about various things helping to calm down an anxious or hyperactive kitty, with lavender often topping the list. Lavender is known for its ability to soothe humans and promote sleep, but does it do anything for...

cute ginger kitty

Why Does My Cat’s Tail Twitch? 6 Vet-Reviewed Reasons

Cat ownership would be a lot easier if our pets could tell us their thoughts. However, until someone develops a cat-to-human translator, we have to use context clues and our pet’s body language to decipher their moods. A cat’s tail...

A-curled-cats-tail-close-up

When Will My Kitten Start to Purr? The Origin Story

The sound of a cat purring is one of the most relaxing and soothing noises you’ll ever hear. If you’re about to bring a new kitten home, you might wonder when they will start to purr so you can enjoy...

grey scottish fold kitten

Can Young Cats Develop Diabetes? Our Vet Explains Signs, Treatment & FAQ

Diabetes is a complex metabolism condition affecting many animals, including cats. With estimates reaching 1% of the cat population 1, it’s easy to wonder if your cat could be at risk for developing the disease. While older cats seem to...

vet holding sick cat

Can Cats Eat Oatmeal? Vet-Reviewed Facts & Considerations

There are few staple breakfast foods that keep you satisfied and full of energy like oatmeal does. But just because it’s good for us doesn’t mean oatmeal is good for cats. So, can cats eat oatmeal? Oatmeal is technically safe...

Can Cats Eat Oatmeal

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.