You've been told to cut back on your sodium to reduce your blood pressure. How about potassium? Increasing the amount of potassium you consume speeds up your body’s ability to flush sodium out. In addition to bananas, try other potassium rich foods, such as baked potatoes, sweet potatoes, orange juice, winter squash, tomato puree, lima beans, cantelope, and yogurt.
http://www.health.gov/DietaryGuidelines/dga2005/document/pdf/Chapter8.pdf (p.40)
http://www.fda.gov/fdac/features/2005/305_eat.html#lowersodium
Potassium, magnesium, and calcium: their role in both the cause and treatment of hypertension.
Houston MC, Harper KJ. J Clin Hypertens (Greenwich). 2008 Jul;10(7 Suppl 2):3-11. Review.