There are a number of different approaches to managing high blood pressure, but did you know that the foods you eat can lower blood pressure? It’s true. For example, oranges, spinach, broccoli and bananas all are rich in the mineral potassium. It is a well-known fact that potassium can lower blood pressure, and some physicians even prescribe potassium supplements to their hypertensive patients. People should not supplement their diets, however, with potassium pills unless under the direct supervision of their health care providers. Consuming too much potassium can cause side effects such as heart rhythm abnormalities, dizziness and gastrointestinal upset.