Question: are greens high in potassium?
Answer: Load Up on Dark Leafy Greens like Spinach and Bok Choy Some of the best sources of potassium are dark leafy greens such as spinach, which when cooked has more than 800 mg of potassium per cup; bok choy, which contains around 600 mg per cup when boiled, and Swiss chard, which has almost 1,000 mg per cooked cup.