1. Vegetables, such as wax gourd, cucumber, tomato, celery and leek, are rich in potassium.

2. Fruit foods, such as oranges, tangerines, grapefruit and watermelons, are also rich in potassium.

3. Bean foods, such as soybeans, mung beans, black beans and red beans, are rich in potassium.

4. Fungal foods, such as auricularia auricula, Hericium erinaceus and Pleurotus ostreatus, are also rich in potassium.