Raised blood pressure is the leading preventable cause of cardiovascular disease, and hypertensive people are three times more likely to develop cardiovascular disease. High blood pressure increases the workload of the heart and can damage the endothelial lining of blood vessels, cause increased lipid infiltration into the arterial wall, worsen endothelial damage, and increase atherosclerotic deposition (Thomas & Bishop, 2007) . The most significant influences are obesity, excess alcohol and excessive salt intake (Williams et al., 2004). Dietary modifications have been shown to reduce systolic and diastolic blood pressure (Apple, 1997). One review showed that among overweight hypertensive people, a 3-9% weight reduction is associated with an approximately 3 mmHg decrease in systolic and diastolic blood pressure. Furthermore, weight loss diets can reduce the need for dosage of antihypertensive drugs (Mulrow et al., 2008). A reduction in alcohol intake lowered systolic and diastolic blood pressure by an average of 3.3 and 2.0 mmHg (Xin, He, Frontini, Ogden, Motsamai, & Whelton, 2001). On the other hand, excess sodium and inadequate potassium consumption are directly linked to hypertension and many systems are affected, including renal function, the renin-angiotensin-aldosterone system, atrial natriuretic factor, the nervous system sympathetic, adrenergic receptors, endothelin and nitric oxide and ion transport (Weinberger, 1996). Furthermore, insulin can promote renal sodium reabsorption; numerous studies have suggested that hyperinsulinemia could be involved in the pathogenesis of salt sensitivity in blood pressure (Rocchini, 1994). Therefore, insulin resistance has been hypothesized to be responsible for increased sodium retention in some obese individuals (Rocch...... middle of paper ...... and, but the entire lifestyle ( Segasothy & Phillips, 1999).The vegetarian diet is cost-effective, safe and relatively easy to implement, it should be planned cautiously with sufficient supplementation to avoid vitamin deficiency and malnutrition (Sticher et al, 2010). of fruits, vegetables, low-fat dairy foods, moderate alcohol consumption, reduction of salt and saturated and total fats. It has been introduced as a nutritional approach to prevent and treat hypertension (Appel et al., 1997). three weeks and then randomized into study groups for eight weeks. Although the duration of the study was relatively short, it showed a corresponding reduction in systolic and diastolic blood pressure of 3.5 mm Hg and 2.1 mm Hg, respectively. subjects without hypertension (Appel). et al., 1997).