Key result
Dietary counseling for calorie reduction lowered systolic and diastolic blood pressure by a net 2.4 mm Hg and 1.8 mm Hg at 3 years, and sodium reduction significantly reduced hypertensive events.
Why the study?
Does dietary counseling for calorie and sodium reduction lower blood pressure in healthy adults with high-normal diastolic blood pressure?
Population
841 healthy men and women aged 25 to 49 years, with diastolic blood pressures of 78 to 89 mm Hg
Comparison
Dietary counseling over a 3-year period vs Control treatment group (no dietary counseling)
Design
RCT, randomly assigned
Follow-up
3 years
Authors
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Supports dietary counseling for calorie/sodium reduction in high-normal BP; confirms long-term efficacy in primary-prevention RCT.
RCT (n=841)
Does dietary counseling for calorie and sodium reduction lower blood pressure in healthy adults with high-normal diastolic blood pressure?
Dietary counseling to reduce calories and sodium effectively lowers blood pressure and reduces hypertensive events over 3 years in healthy adults with high-normal diastolic blood pressure.
Hypertension Prevention Trial Research Group Hypertension Prevention Trial Research Group (1990) conducted an RCT in High normal diastolic blood pressure (n=841). Dietary counseling (reduced calories, reduced sodium, reduced sodium and calories, or reduced sodium and increased potassium) vs. No dietary counseling was evaluated on Blood pressure. Dietary counseling for calorie reduction lowered systolic and diastolic blood pressure by a net 2.4 mm Hg and 1.8 mm Hg at 3 years, and sodium reduction significantly reduced hypertensive events.
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