Watermelon

Until the age of 55, more men suffer from high blood pressure than do women. Research suggests that foods rich in potassium can reduce the risk of high blood pressure and stroke. The evidence is so convincing that the Food and Drug Administration recently allowed food labels to bear a health claim about the connection between potassium-rich foods and blood pressure. "There isn't a dietary requirement for potassium," says Kathleen Cappellano, nutrition-information manager at Tufts University in Boston . "But a good goal is about 2000 milligrams or more a day." Watermelon, a rich source of this mineral, has more potassium -- 664 mg -- in one large slice than the amount found in a banana or a cup of orange juice. So cut yourself another slice and enjoy the taste of summer.