Soybeans are another excellent source of potassium and magnesium. Look for soybeans in the pod (edamame) in the freezer case at your grocery store; for a healthy snack, boil one cup and pop them directly out of the shell into your mouth. If you miss the salt, lightly sprinkle with salt substitute. You'll definitley want to try this Edamame and Brown Rice Salad.
When it comes to lowering your blood pressure, these foods are among your best bets.