Low Sodium-DASH Diet Combo Best for Hypertensive Adults?

A low sodium-DASH diet combination lowers blood pressure (BP) in adults with hypertension, according to the results of preliminary research at the American Heart Association’s (AHA) Scientific Sessions 2017.In the study, 412 adults with pre- or stage 1 hypertension, not using antihypertensive medications, were assigned to either the DASH or control diet group. DASH diets, which are recommended by the US-based National Heart, Lung, and Blood Institute and the AHA, include fruits, vegetables, and whole grains, along with low or fat-free dairy, fish, poultry, beans, seeds, and nuts. Participants in the control diet group remained on their regular diet.

Within their assigned groups, participants were given each of 3 sodium levels (50, 100, and 150 mmol/d at 2100kcal) in random order over a 4-week period, separated by 5-day breaks. Compared with the high-sodium control diet, the low sodium-DASH diet lowered systolic blood pressure (SBP) by -5.30, -7.48, -9.70, and -20.79 mmHg across strata of baseline SBP (<130, 130-139, 140-149, and ³150 mm Hg, respectively).

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