Low- and no-fat dairy foods are good sources of calcium and protein, which can help maintain a healthy blood pressure.
Try to get two to three servings of dairy every day. Choose skim or 1% milk, buttermilk, and low- or no-fat cheeses and yogurt. Frozen low-fat yogurt is OK, too. One serving equals 1 cup of yogurt or milk, or 1 1/2 ounces of cheese -- about the size of three dice.