Hypertension is very common disease in many places and millions are suffering .It has very link to potassium nin blood , Hypertension remains the leading cause of cardiovascular disease (CVD), affecting approximately 1 billion individuals worldwide [1]. More than 72 million Americans, or nearly 1 in 3 adults, are estimated to have hypertension but only 34% achieve blood pressure (BP) control [2–5]. Nearly 70 million more adults are at risk of developing prehypertension, BP between 120/80 mm Hg and 140/90 mm Hg. Over 90% of adults in the United States will probably develop hypertension, especially systolic elevations, by age 65 [3]. Hypertension is associated with an increased risk of morbidity and mortality from stroke (cerebrovascular accident, CVA), coronary heart disease (CHD), myocardial infarction, congestive heart failure, and end-stage renal disease. Poor BP control is even more of a challenge for patients with diabetes and chronic kidney disease, who have lower recommended BP goals [6]. Hypertension remains the most common reason for patient visits to physician’s offices and is the primary reason for the use of prescription antihypertensive drugs, with an annual cost of almost $20 billion. Diet in the Prevention and Treatment of Hypertension Several epidemiologic studies [7–10] suggest that diet plays an important role in determining BP. So how potassium is playing?