Eligibility requirements included age 22 years and older, with SBP
120 to 159 mm Hg and DBP 80 to 95 mm Hg, based on average BP
measured during 3 screening visits spaced at least 1 week apart.
Persons were excluded who took antihypertensive medication or any
medication affecting blood pressure.20 Of 412 men and women
randomly assigned into the trial, 204 were assigned to the control
diet. Of these, 188 (92.2%) completed all three feeding periods. Data
analyses here are based on these 188 participants.