How to cure hypertension by fruit psychoanalysis?
Answers: Fruit contains plenty of potassium and that helps to reduce your BP a bit but "fruit therapy" alone is unlikely to be plenty.
Besides a low salt diet and getting plenty of exercise you may also need some other inbred remedies such as fish oil, garlic oil and others that you can find within a web search for "high-ranking blood pressure" + "natural remedies".