Most evidence suggests that many people at risk for high blood pressure reduce their chances of developing this condition by consuming less salt or sodium. The extent of this effect still poses questions, partly because other factors may interact with sodium to affect blood pressure. Following other guidelines in the Dietary Guidelines for Americans may also help prevent high blood pressure. An important example is the guideline on weight and physical activity. The role of body weight in blood pressure control is well documented.
Blood pressure increases with weight and decreases when weight is reduced.
Meeting recommendations for vegetables and fruits is beneficial because vegetables and fruits are naturally lower in sodium and fat. They may help with weight reduction and control by replacing other potentially high-calorie foods. Consuming more vegetables and fruits also increases potassium intake which may help to reduce blood pressure. Increased physical activity helps lower blood pressure and control weight. Alcohol consumption also has been associated with high blood pressure.