For general guidelines, Duke University Medical Center and the American Kidney Foundation have divided foods into low, moderate and high potassium groups. Some of the more common foods in each category are:
HIGH potassium (more than 225 milligrams per 1/2 c. serving)
These foods would be beneficial to athletes or to others who incur heavy fluid loss. Patients on potassium-restricted diets should avoid them, or eat them sparingly, as advised by their nutritionist.
All meats, poultry and fish are high in potassium.
Apricots (fresh more so than canned)
Oranges and orange juice
Potatoes (can be reduced to moderate by soaking peeled, sliced potatoes overnight before cooking)
MODERATE (125 – 225 mg per serving)
These foods can be a large part of most people’s balanced nutrition plan. Persons restricting their potassium might be cautioned to include no more than one or two servings from this list per day, depending on their medical restrictions.
Summer squash, including zucchini
LOW potassium (less than 125 mg per serving)
These foods give less electrolyte value per serving for people who need to increase their potassium levels.
They should be a major part of the menu plan for people limiting their intake.
Mandarin oranges, canned