Thursday, January 15, 2015
It may be worthwhile to infuse some colour in your morning cereal with blueberries. This is desirable because a current research has shown that a cup of blueberries per day could help in reducing blood pressure and arterial stiffness, both of which are associated with cardiovascular disease (CVD), especially in post-menopausal women suffering from pre- and stage-1 hypertension.
These interesting results were published in the Journal of the Academy of Nutrition and Dietetics. The study recruited 48 postmenopausal women with pre- and stage-1 hypertension and randomised them to receive either 22 grams of freeze-dried blueberry powder - the equivalent to one cup of fresh blueberries -- or 22 grams of a placebo powder for 8 weeks. The participants went about their routine diet and exercise regimens during the study period in the meantime.
At the beginning of the study, the researchers measured the participants' blood pressure, arterial stiffness and select blood biomarkers. However, at the end of 8 weeks, those receiving the blueberry powder showed an average 7 mmHg drop in systolic blood pressure and a 5 mmHg reduction in diastolic blood pressure. They also showed an average 97 cm/second (6.5 percent) reduction in arterial stiffness.
In addition, the participants consuming the blueberry powder showed a 68.5% increase in the production of nitric oxide, a biomarker that brings about widening of blood vessels. Studies have shown that arterial stiffness and narrowing of blood vessels are two important factors leading to hypertension.
Talking about the study, the researchers said, “Our findings suggest that the addition of a single food, blueberries, to the diet may mitigate the negative cardiovascular effects that often occur as a result of menopause.” So ensure you add a dash of blue to your diet to reduce the risk of hypertension and CVD.
For study details:-Click Here!