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Potassium and Oxalates in Green Vegetables for Kidney Diets for Dogs

Hyperkalemia is a potential complication of dogs with Chronic Kidney Disease (CKD). In a subset of CKD dogs, hyperkalemia can be associated with commercial renal diets and could restrict the use of these diets. Knowing these small details can help you as you prepare your dog’s kidney-friendly home-cooked or raw meals.

I’ve also included a column if you’re curious about the oxalate levels.

mg per 100g
mg per 100g
Green Lettuce1942
Green Beans21117
Collard Greens*21334
Green Peas24445
Turnip Greens29645
Swiss Chard3791008
Brussels Sprouts38936
Dandelion Greens39719
Beet Greens762610

*Collard Greens are very high in calcium and so I would pass on feeding collard greens to dogs with CKD.

A Word About Oxalates

Even though I’ve listed the oxalate content above, as of the time that I published this article I was not able to find any clinical studies on the upper limits for oxalates for dogs with CKD but I include the information just the same because a client of mine had asked me about it.

In humans, dietary oxalate may have an important influence on the risk of formation of CaOx kidney stones but we don’t know what the allowances are for dogs.

If you need help figuring out what to feed your dog, I’m available to help you formulate recipes. Visit my packages page to learn more.

I wish you and dogs good health.


Segev G, Fascetti AJ, Weeth LP, Cowgill LD. Correction of hyperkalemia in dogs with chronic kidney disease consuming commercial renal therapeutic diets by a potassium-reduced home-prepared diet. J Vet Intern Med. 2010 May-Jun;24(3):546-50. doi: 10.1111/j.1939-1676.2010.0488.x. Epub 2010 Mar 19. PMID: 20337915.

Gennari FJ, Segal AS. Hyperkalemia: An adaptive response in chronic renal insufficiency. Kidney Int. 2002 Jul;62(1):1-9. doi: 10.1046/j.1523-1755.2002.00350.x. PMID: 12081558.

DuBose TD Jr. Regulation of Potassium Homeostasis in CKD. Adv Chronic Kidney Dis. 2017 Sep;24(5):305-314. doi: 10.1053/j.ackd.2017.06.002. PMID: 29031357.

Mitchell T, Kumar P, Reddy T, Wood KD, Knight J, Assimos DG, Holmes RP. Dietary oxalate and kidney stone formation. Am J Physiol Renal Physiol. 2019 Mar 1;316(3):F409-F413. doi: 10.1152/ajprenal.00373.2018. Epub 2018 Dec 19. PMID: 30566003; PMCID: PMC6459305.

Author Biography

Hannah Zulueta obtained her Certificate in Canine Nutrition from CASI Institute. She is also studying for her Doctorate in Acupuncture, Traditional Chinese Medicine, and Herbalism from the esteemed Pacific College of Health and Medicine.

She resides in San Diego with her three dogs, Maggie, Orbit, and Mr. Higgins.

She is available for one on one consultations. Additionally, you can find her sharing free content on Instagram.

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