Daily Blueberry Consumption Improves Blood Pressure in Postmenopausal Women with Hypertension

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Johnson, S., Figueroa, A., Navaei, N., Wong, A., Kalfon, R., Ormsbee, L., Feresin, R., Elam, M. (2015).   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.  Journal of the Academy of Nutrition and Dietetics, 115(3), 370-377.

 

            Blueberries have earned the reputation as a disease-fighting superfood because they are packed with nutrients.  One cup of blueberries provides protein, fiber, vitamin C and vitamin K and minerals such as manganese as well as iron, potassium and copper.  Anthocyanins, the purple pigment found in blueberries, is a phytochemical that also offers health benefits.

            An eight-week study on blood pressure and arterial stiffness was performed on postmenopausal women with hypertension to assess the effectiveness of blueberries on reducing hypertension.  Postmenopausal women have a high rate of hypertension, thus increasing their risk of cardiovascular disease. 

             Blueberry consumption is known to increase the production of nitric oxide, possibly increasing vasodilation.  This eight-week study showed improved arterial stiffness in postmenopausal women with hypertension.  The results of the study would suggest that blueberries consumed regularly could potentially reduce the occurrence of hypertension and reduce the risk of cardiovascular disease.  It is not currently known if increasing the amount of blueberries or the duration would improve results. 

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