Swiss Chard, Spinach and Beet Greens
Green leafy vegetables, such as swiss chard, beet greens, and spinach, contain high amounts of minerals and nutrients, including potassium. When these vegetables are served raw, one cup has around 140-290 mg of potassium. Leafy vegetables have the tendency to shrink when cooked, but their potassium content remains the same.
Dates, Raisins, and Prunes
Common dried fruits include prunes, raisins, and dates. When fruits are dried, their nutrients become concentrated, including potassium. A cup of prunes contain 1,274 mg of potassium, almost five times the potassium in a cup of plums.