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.

9 Foods With Potassium for Cats: Vet-Reviewed Advice

cat eating canned tuna

Potassium is an essential mineral that helps maintain a healthy heart, muscles, and neurological function. Without potassium, a cat’s body would be completely out of whack. Thankfully, potassium is abundant in several food sources, even for an obligate carnivore. In this post, we’ll share nine potassium-rich food sources your cat will love.

divider single cat paw oct 2024

How Much Potassium Do Cats Need Daily?

The average healthy cat needs about 0.33 grams of potassium daily. However, since cats have different health needs, this number can vary. For instance, cats with renal disease need more potassium in their daily allowance to regulate kidney functions and account for urine losses of the mineral.

Potassium in Commercial Pet Food

Since potassium is an essential mineral, commercial cat foods must contain the minimum potassium levels in their formulas. Depending on the ingredient list, some pet foods will have more potassium in their recipes than others.

divider single cat paw oct 2024

The 9 Foods With Potassium You Can Feed Your Cat

Try these nine foods to add more potassium to your cat’s diet. Odds are your cat is bound to like one of them.

1. Chicken

Boiled chicken strips drained
Image By: mariannagraf, Pixabay

You can’t go wrong with chicken. One cup of cooked chicken equals about 312 to 332 milligrams of potassium, which is close to your cat’s daily potassium intake.


2. Canned Tuna

Open Canned Tuna
Image By: P Maxwell Photography, Shutterstock

Canned tuna has about 153 milligrams of potassium, and it’s easy to serve. If you feed your cat tuna, serve the low-sodium or salt-free type.


3. Salmon

Grilled salmon on the plate
Image By: amenic181, Shutterstock

Cooked salmon has 332 milligrams of potassium in roughly a 3-ounce serving. You could also serve a dry food salmon formula if you can’t afford fresh salmon.


4. Banana

Banana
Image Credit: t_watanabe, Pixabay

Not all cats like bananas, but those that do can enjoy a few pieces. You don’t need to give your cat an entire banana since one contains about 422 milligrams of potassium.


5. Pumpkin

homemade pumpkin puree in bowl
Image Credit: Ildi Papp, Shutterstock

Several pet foods and treats contain pumpkin. You can also find canned pumpkin in the baking aisle at your local grocery store. One cup of pumpkin contains about 394 milligrams of potassium.

Of course, your cat won’t eat an entire cup of pumpkin, but cat foods and treats are a good start.


6. Spinach

steamed spinach in a bowl
Image Credit: Nicola_K, Shutterstock

Cooked spinach contains 466 milligrams of potassium on a 3.5-ounce basis. Some cats love to munch on fresh spinach, but others may not be too fond of it.


7. Potatoes

cooked potatoes
Image Credit: Taken, Pixabay

You shouldn’t feed your cat too many potatoes, but they are high in potassium. A 3.5 ounce of potato contains 544 milligrams of potassium.


8. Lamb

a rack of cooked lamb meat
Image Credit: Dale Berman, Shutterstock

Lamb is an excellent choice for giving carnivorous cats extra potassium. A 3-ounce serving contains about 260 milligrams of potassium, and it’s delicious. When you serve lamb, ensure it isn’t seasoned with onion, garlic, or additional seasonings.


9. Prescription Food

orange cat eating on an orange bowl
Image Credit: Okssi, Shutterstock

Cats with chronic kidney disease benefit from a prescription renal diet designed to help their kidneys function. The diets are supplemented with potassium, so you don’t want to go overboard with other potassium-rich foods.

divider single cat paw oct 2024

What Causes Low Potassium in Cats?

Low potassium, or hypokalemia, is commonly found in cats with chronic kidney disease. About 20% to 30% of cats with this issue struggle with low potassium levels.

Malnourishment will also cause low potassium levels in cats, eventually leading to other health concerns if the cat’s nutrition doesn’t improve.

Typical signs of hypokalemia include:
  • Weight loss
  • Neurologic disorders
  • Heart arrhythmias
  • Severe muscle weakness
  • Poor coat quality
  • Difficulty standing and walking
  • Depression
  • Constipation

Can My Cat Have Too Much Potassium?

Cats can consume too many vitamins and minerals if cat owners aren’t careful. The best way to know if your cat is getting the proper nutrition is to work with a veterinarian on a diet that works for your cat.

Whether you use a homemade or commercial diet, an experienced veterinarian can provide the best advice on boosting your cat’s potassium level.

Need veterinary advice but can't get to the clinic? Catster recommends PangoVet, our online veterinary service. Talk to a vet online and get the answers and advice you need for your cat without having to leave your living room — all at an affordable price!

PangoVet_Mention-in-Content for PangoVet2 save money

divider single cat paw oct 2024

Conclusion

Low potassium, or hypokalemia, is more common in cats than we realize. It all boils down to proper diet and kidney health. A nice snack here and there using the foods we listed above is a great place to start. But if your cat is at a stage in life when they need veterinary help with potassium levels, work with your vet on the best action plan.


Featured Image Credit: Veera, Shutterstock

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

Why Do Cats Trill & What Does It Mean? Vet-Verified Feline Vocalization Facts

Cats make quite a few different noises, and one of the cutest that we’ve ever heard is trilling. This is a blend between...

Can Cats Eat Marshmallows? Vet Approved Nutritional Facts & Risks

If you’re enjoying a cup of hot chocolate with marshmallows on top, or are feasting on mallows directly from the bag, it can...

Your Cat Doesn’t Like Catnip? 6 Vet-Approved Alternatives

Not all cats are reactive to catnip. And sometimes, you might not like your cat quite as much when they are on the...

10 Best Lightweight Cat Litters in 2025 – Reviews & Top Picks

Finding the right cat litter can truly change your life. It can improve the smell of your home, reduce messes, and make scooping...

More related

Siamese Kittens for Sale in South Carolina: Breeders List 2025

Catster advocates for adopting before shopping, though we fully understand there are many reasons for seeking a breeder. So, we encourage it to...

Is It True That Male Cats Kill Kittens? Vet-Reviewed Behavior Explanation

If you’ve heard that male cats might sometimes harm or kill kittens, you’re likely reading this now to see if there’s any truth...

8 DIY Indoor Cat House Plans You Can Make Today (With Pictures)

If you have a cat, you’ll likely know that one of their favorite pastimes is…sleeping. Most cats love finding a warm and cozy...

Why Do Cats Slap and Swat? 9 Vet-Reviewed Reasons & Tips

Cats, elegant and beautiful as they are, have some pretty perplexing behaviors. On top of the list is slapping and swatting anything (and...

Keep reading

Can Cats Eat Collard Greens? Vet-Approved Nutrition Advice

Plain collard greens are perfectly fine for cats to eat. They provide a good source of fiber, along with nutrients and minerals. Cats cannot digest these greens quite as well as humans or dogs can, though, so they mostly act...

Can Cats Eat Collard Greens

Can Cats Eat Pecan Pie? Vet-Approved Facts & FAQ

Pecan Pie is a delicious dessert traditionally served in the United States during the winter and fall. It is mouth-wateringly sweet and contains pecans, eggs, molasses, corn syrup, brown sugar, butter, and vanilla extract. Some recipes even call for bourbon...

Can Cats Eat Pecan Pie

How to Trim Kitten Nails in 4 Simple Steps: Vet-Approved Advice

As a pet parent, you’ve seen your new kitten sharpening their claws on everything from the carpet to the couch more than once. Not only that, but kitten’s claws are incredibly sharp, and if you don’t do something about them,...

kitten nails trimming

Why Do Cats Love Catnip? 10 Vet Reviewed Reasons Behind the Behavior

You may not want to admit the truth to yourself, but deep down inside, it can’t be denied. The signs are all there, after all: lack of coordination, drooling, zoning out, and staring into space. There’s no doubt about it—your...

cat-eating-catnip

Are Burmese Cats Hypoallergenic? What You Need To Know!

Since they’re affectionate, playful, and fiercely loyal, the Burmese cat is very easy to love. If you’re an allergy sufferer but would love to share your life with one of these wonderful cats, you’ll be pleased to learn that the...

Closeup Burmese Cat Stands on Gray background

Does Pine Sol Kill Fleas on Cats? Vet-Reviewed Effectiveness & Safety Explored

Pine-Sol is a well-known cleaning product for kitchen and bathroom floors. There is some information surrounding the product and how it may affect fleas on cats, but we can confidently say that Pine Sol does not kill fleas on cats....

Cat wearing collar scratching and itching

How Often to Change Your Cat’s Water? Vet-Approved Care Tips

We all know that cats need fresh water daily, but if you have a larger bowl that they don’t empty each day, how often do you need to change it out? The truth is that you need to give your...

cat and orange bowl inside the house

Why Does My Cat Act Like My Child? 10 Reasons

Our relationship with our feline companions has evolved dramatically through the ages. They’ve gone from wild animals to ratters to beloved pets. About 95% of people think of their companions as family members.1 Some may do the job that endeared...

Siamese cat with kids