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12 Foods High in Potassium for Cats: Vet Reviewed Advice & FAQ

Bynewsmagzines

Apr 14, 2023
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cat eating cooked chicken
Dr. Lauren Demos Photo

The information is current and up-to-date in accordance with the latest veterinarian research.

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Potassium is an essential nutrient for most mammals, and cats are no exception. Scientists call it a macromineral because of the relatively high amount felines need. It’s used by every cell in the body, including the heart. Potassium deficiencies or hypokalemia are common due to the frequency of gastrointestinal and renal issues in these pets.1

Telltale signs of low potassium are muscle weakness, lethargy, and tremors. Unfortunately, not eating can worsen the issue and increase your pet’s risk of more severe complications. However, it’s imperative to work with your vet to treat nutrient deficiencies.

If you’re worried about your pet’s potassium levels, check out our list of foods that could give them the boost they need—after getting the OK from your vet, of course.

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The 12 Foods High in Potassium for Cats

1.  Most Fish

It never fails to make us scratch our heads when we think of cats as piscivores or fish eaters. After all, their origin was in the arid Near East,2 which wasn’t near water. Nevertheless, felines and fish are the quintessential matches. That’s a good thing since many kinds, such as tuna, sardines, and mackerel, are excellent sources of potassium. Most species are also low in fat and calories.

You can offer your pet a diet with a fish-based protein source or treats with these ingredients. However, don’t go grain-free. Cats still need the roughage they provide, which can also help them pass hairballs.


2. Shellfish

Shellfish, like clams and shrimp, have a lot of the same things going for them as fish. They’re also a common ingredient in many commercial diets and treats. If you want to give your cat the real thing, make sure to cook them properly. Raw shellfish isn’t a healthy option because of the risk of foodborne diseases. You should also check for any shell fragments before feeding them to your pet.


3. Chicken and Turkey

Chicken and turkey are some of the most popular pet food ingredients. The real thing is a great potassium source that is low in fat and calories. You won’t have any issues getting your cat to eat this yummy protein. Again, it’s essential to offer your kitty only fully cooked poultry. Make sure to clean all surfaces after handling the raw food as well.

You should only give your cat plain, unseasoned meat. You can poach or bake it, leaving out the oil. The bones are off-limits for your pet because of the risk of splintering.

shred chicken
Image Credit: anapat duangngoen, Shutterstock

4. Lamb

Lamb is another high-protein and high-potassium food your cat may find tasty. It is relatively low in fat, making it a leaner meat source. The same precautions about cooking and bones also apply to this one. Interestingly, lamb often shows up as an alternative protein source in prescription diets for pets with allergies.3


5. Venison

If someone in your household hunts, you may find that your cat is more than willing to share the bounty. Venison is low in fat, making it an excellent protein and potassium source for you, too. You’ll also see this meat in some commercial diets and treats. If you prepare the meat, you may want to follow the advice many cooks follow and keep it on the medium-rare side to make it easier for your cat to eat.


6. Bison

We can say many of the same things about bison as we did about venison. The chances are it’s more readily available commercially than our previous food. Again, avoid overcooking the meat to make it more palatable to your cat. Even though it’s low in fat and calories, you should still limit bison to an occasional treat.


7. Bananas

Bananas are probably one of the top foods you associate with potassium. A medium-sized fruit contains a whopping 451 milligrams of this essential mineral! However, don’t be surprised if your cat turns up its nose to them. While many of us have a sweet tooth, felines can’t taste this flavor. The smell might also seem foreign to an animal that lives in a scent-filled world. You can offer it, but no promises that they’ll eat it.

peeled and sliced banana
Image Credit: t_watanabe, Pixabay

8. Pumpkin

The high fiber content in pumpkin makes it a healthy choice. It even beats out bananas as potassium-rich food. If you want to give this squash to your pet, you should stick to the canned, unsweetened product. Avoid the canned pie mix, which is loaded with sugar and calories!


9. Brown Rice

Many manufacturers add rice to their products as a grain source that is high in fiber. You can give your cat small amounts, sticking to the more nutritious brown variety. Mixing it with some wet food will help it go down as a treat. We recommend checking the “best by” date on the package since brown rice has a limited shelf life.


10. Carrots

Carrots are a nutrient powerhouse without a lot of calories and virtually no fat. Many dog owners use them as training treats. Your cat may like them, too. A cup of raw carrots contains over 400 milligrams of potassium and only 52 calories. That makes them sound like a snack we should have around the house all the time!

a basket of carrots
Image Credit: jackmac34, Pixabay

11. Potassium Supplements

If your pet has a deficiency, your vet will most likely prescribe a potassium supplement. While the foods we’ve listed are good sources of the mineral, you’d have to give your cat a lot to up its potassium intake. It’s imperative to work closely with your vet if they opt for this treatment plan. They will likely follow up with bloodwork to ensure your cat’s potassium levels are normal.


12. Prescription Kidney Diet

Pets with chronic kidney disease often have potassium deficiencies, requiring a special diet. These products usually contain more of this mineral than regular cat food. They typically require a vet’s diagnosis and prescription. Many signs of an issue are non-diagnostic. If it’s a chronic condition, it might be a permanent diet.

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Foods to Avoid

Sadly, not all foods rich in potassium are the best choice for your pet, regardless of how tasty and healthy they are for us. The FDA is currently investigating a potential link between some commercial diet ingredients and canine dilated cardiomyopathy (CDM), a serious heart condition. The concern arose from a spike in cases recently.

While it has been diagnosed primarily in dogs, veterinarians have reported incidences of hypertrophic cardiomyopathy in felines. Problematic ingredients have been a common denominator in the reported cases, especially in products with them listed in the first 10 on the label.

They include the following:

  • Potatoes
  • Lentils
  • Chickpeas
  • Peas
  • Sweet potatoes

We suggest you discuss offering your cat any of these foods with your vet before opting for them as a potential potassium source.

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Conclusion

Fortunately, low potassium levels are less common in healthy cats fed a commercial diet. These foods are complete and balanced and will provide the necessary nutrients in the correct amounts. It’s always critical to work with a vet in treating deficiencies because of potassium’s role in heart function. It’s worth noting that too much of a good thing can be just as harmful.

Animal protein sources are probably your best choice for high-potassium foods. After all, felines are obligate carnivores and may not enjoy some of the things on our list. We recommend limiting supplements to your pet’s diet. Your cat’s store-bought food will have its nutrient needs covered.


Featured Image Credit: Forewer, Shutterstock

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