1 Because of this strong evidence, DASH has been a consistent part of national blood pressure and dietary guidelines since its original publication. 1 DASH was particularly effective for those with hypertension (SBP and DBP change: −10.7 and −4.7 mm Hg, respectively) and among black individuals (SBP and DBP change: −6.8 and −3.7 mm Hg, respectively). 1 Blood pressure changes were observed in subgroups of men, women, racial/ethnic minorities, white individuals, and both hypertensive and prehypertensive participants. Compared with a control diet typical of US consumption, the DASH diet produced reductions in systolic blood pressure (SBP) and diastolic blood pressure (DBP) of 5.5 and 3.0 mm Hg, respectively-with results evident as early as 2 weeks after baseline.
Dash diet trial#
The initial DASH trial was a 4-site, randomized controlled feeding study. 1 Since the creation of DASH 20 years ago, numerous trials have demonstrated that it consistently lowers blood pressure across a diverse range of patients with hypertension and prehypertension. 1 DASH is not a reduced-sodium diet, but its effect is enhanced by also lowering sodium intake. It also limits foods high in saturated fat and sugar.
It emphasizes foods rich in protein, fiber, potassium, magnesium, and calcium, such as fruits and vegetables, beans, nuts, whole grains, and low-fat dairy. 1 The DASH diet is considered an important advance in nutritional science. This year marks the 20th anniversary of the publication showing the blood pressure–lowering effects of the Dietary Approaches to Stop Hypertension (DASH) diet.
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