Skip to main content
Avg ER Wait
Checking ER Wait Time
The feed could not be reached
TriStar Centennial Medical Center

Limiting Potassium in Your Diet

Potassium can be found in many foods. Abnormal blood levels of potassium can be very dangerous as they may lead to serious heart arrhythmias . Kidneys regulate the metabolism of potassium, making sure that its levels are appropriate. However, when your kidneys are not working properly, you often need to limit certain foods that can increase the potassium in your system.

If you need to limit your potassium, your doctor or dietitian will tell you how many milligrams (mg) you can have each day. They will also help you design a low potassium diet .

Image for patassium

Food Sources of Potassium

Potassium is found in many foods, especially fruits and vegetables. If your doctor wants you to limit your potassium intake, you may want to consume less of the following foods that contain higher levels of potassium:

  • Sweet potato
  • Tomato juice, sauce, paste, and puree
  • Beet greens
  • Potatoes
  • White beans
  • Yogurt
  • Canned clams
  • Prune juice
  • Carrot juice
  • Soybeans and Lima beans
  • Blackstrap molasses
  • Certain fish such as halibut, yellowfin tuna, Pacific cod, rainbow trout
  • Winter squash
  • Bananas
  • Cooked spinach
  • Prunes
  • Dried peaches or apricots
  • Milk
  • Eat Right - Academy of Nutrition and Dietetics

  • National Kidney Foundation

  • Dietitians of Canada

  • Health Canada

  • Dietary guidelines for Americans 2005: Appendix B-1. Food sources of potassium. US Department of Agriculture website. Available at: Updated July 9, 2008. Accessed July 24, 2014.

  • Hyperkalemia. EBSCO DynaMed website. Available at: Updated June 4, 2014. Accessed July 24, 2014.

  • Potassium. National Kidney Foundation website. Available at: Accessed July 24, 2014.

The health information in this Health Library is provided by a third party. TriStar Health does not in any way create the content of this information. It is provided solely for informational purposes. It does not constitute medical advice and is not intended to be a substitute for proper medical care provided by a physician. Always consult with your doctor for appropriate examinations, treatment, testing, and care recommendations. Do not rely on information on this site as a tool for self-diagnosis. If you have a medical emergency, call 911.