With the use of a randomized , crossover intervention-study design , 49 adults ( 56 % women ) with elevated blood pressure ( mean SEM age : 53 2 y ; systolic blood pressure : 135 1 ; diastolic blood pressure : 80 1 mm Hg ) underwent a high-dairy condition ( +4 servings conventional nonfat dairy products/d ) and isocaloric no-dairy condition ( +4 servings fruit products/d ) in which all dairy products were removed .