 It is accepted knowledge, that a potassium rich diet lowers blood pressure as demonstrated in the well constructed DASH Dietary Approaches to Stop Hypertension study 5. In addition to a high potassium level the DASH diet also contained high levels of magnesium, calcium and low-fat dairy products and a low level of saturated fat, so whether the blood pressure lowering effect of the DASH diet was merely a result of the high potassium level or a result of the combined diet is difficult to tell. Nonetheless a meta-analysis demonstrated a significant systolic and diastolic blood pressure lowering effect of administration of an high-dose oral potassium supplementation compared to placebo or administration of an low-dose oral potassium supplementation 6. The risk of stroke, the main adverse outcome of long time hypertension, has also been demonstrated to be reduced with a high dietary potassium intake 7. And one study demonstrated that, the need for antihypertensive medication in hypertensive subjects can be reduced after an increase in the dietary potassium intake from natural foods 8. A high dietary potassium intake thus seems beneficial. 