Study 1
Study type:
Randomised, double-blind, placebo-controlled trial
Dose:
250 mL/day of beetroot juice (containing ~6.4mmol of nitrate) or a placebo (250 mL of nitrate-depleted beetroot juice)
Participants:
64 hypertensive men and women aged 18 to 85
Duration:
4 weeks
Results:
Daily supplementation with beetroot juice (dietary nitrate) was associated with a reduction in blood pressure. Specifically, the mean 24h ambulatory blood pressure decreased by 7.7/5.2 mmHg and the mean clinical blood pressure decreased by 7.7/2.4 mmHg. These reductions are clinically significant as they resemble the average reduction in blood pressure after a single anti-hypertensive drug at standard dose (9.1/5.5 mmHg). The authors of the study suggested that dietary nitrate could be used as an adjunctive therapy for managing hypertension.
Year:
2014
Link: