 The diets that patients will eat in this study are the DASHsodium-restricted DASHSRD diet as well as a control diet based on the average reported diet collected using Food Frequency Questionnaires during our pilot study. Patients will be randomized to one diet for three weeks and then crossover to the other diet for three weeks. Patients will then be asked to eat the DASHsodium-restricted diet on their own at home with dietary support for an additional eight weeks. 