Studies related to Nitric Oxide and Blueberry

Daily Blueberry Consumption Improves Blood Pressure And Arterial Stiffness In Postmenopausal Women With Pre- And Stage 1-hypertension: A Randomized, Double-blind, Placebo-controlled Clinical Trial

Effect Increase
Values 9.11 vs 15.35 in blueberry group vs. 9.81 to 10.73 μM in placebo. The Blueberry group had a significant within-group increase, but there was no significant groupxtime interaction.
Trial Design Randomized trial
Trial Length 1-6 months
Number of Subjects 40
Sex Female
Age Range 45-64, 65+
Body Types Obese, Overweight
Notes for this study:
48 postmenopausal women with pre- or stage 1 hypertension were given placebo or 22 g (11 g twice daily) freeze-dried blueberry powder for 8 weeks. The powder had 4.69 mg/g anthocyanins and 8.45 mg/g phenolics. After 8 weeks, systolic and diastolic blood pressure dropped to an extent less than that of hypertensive medications. Brachial-ankle pulsewave velocity also dropped. Carotid-femoral pulsewave velocity remained unchanged.
Funding issues for this study:
Supported by the US Highbush Blueberry Council but also by the US Department of Agriculture.

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