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Nutrition

Discharge Instructions: Eating a High-Potassium Diet

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Your doctor has told you to eat a high-potassium diet. This may be because you have low levels of potassium in your blood. Or it may be because you have high blood pressure. You may also need a high-potassium diet because you take a medicine, such as a diuretic (water pill), that causes your body to lose potassium. Potassium is found in many foods. These include dairy products, nuts, seeds, and beans. It's also found in many fruits and vegetables in high amounts.


Guidelines for a high-potassium diet

  • Eat fruits and vegetables in their fresh or raw form most often.
  • Check labels for ingredients that have potassium. This includes potassium chloride. Add these items to your diet.
  • Try salt substitutes. Many of these have potassium.
  • Don't eat large amounts of licorice. This includes licorice root and teas that have licorice. These can reduce potassium levels in your body.

Eat plenty of high-potassium foods, including:

  • Fruits. Good choices are apricots (canned and fresh), bananas, cantaloupe, honeydew melon, kiwi, nectarines, oranges, orange juice, and pears. Dried fruits include apricots, dates, figs, and prunes. Prune juice also has potassium.
  • Vegetables. Good choices are asparagus, avocado, artichoke, broccoli, bamboo shoots, beets, Brussels sprouts, cabbage, celery, chard, okra, potatoes (white and sweet), pumpkin, rutabaga, spinach (cooked), squash, and tomatoes. Tomato sauce, tomato juice, and vegetable juice cocktail are also good choices.
  • Chicken, fish, clams, and crab.
  • Milk, chocolate milk, buttermilk, and soy milk.
  • Legumes. These include black-eyed peas, chickpeas, lentils, lima beans, navy beans, red kidney beans, soybeans, and split peas.
  • Nuts and seeds. Try almonds, Brazil nuts, cashews, peanuts, peanut butter, pecans, pumpkin seeds, sunflower seeds, and walnuts.
  • Breads and cereals. These include bran and whole-grain products.
  • Chocolate, cocoa, coconut milk, and molasses.


Follow-up

Make a follow-up appointment for a repeat test.


When to call for help

Call 911 if you have:

  • Chest pain.
  • Shortness of breath.
  • Rapid, irregular heartbeat.
  • Paralysis.

Contact your doctor if you have:

  • Vomiting.
  • Extreme tiredness (fatigue).
  • Diarrhea.
  • Muscle cramps, spasms, or twitching.
  • Weakness.

Online Medical Reviewer: Brittany Poulson MDA RDN CD CDE

Online Medical Reviewer: Jessica Gotwals RN BSN MPH

Online Medical Reviewer: Robert Hurd MD

Date Last Reviewed: 09/01/2025

© 2000-2026 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.

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