Premise: How to avoid high blood pressure<br>Incorporate vegetables, fruits, whole grains and low-fat dairy products into your daily diet. Certain nutrients have been found to help prevent high blood pressure: potassium, calcium, magnesium, and omega-3s. There is no need to take supplements of these nutrients if you have a well-balanced diet.
Hypothesis: Potassium, calcium, magnesium, and omega-3s should be supplemented even when you have a well-balanced diet.