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Black raspberry for blood pressure
Black raspberry extract may lower blood pressure in those with elevated levels. In this study, 45 people with prehypertension took a placebo or 1,500 mg or 2,500 mg of black raspberry extract powder per day. After eight weeks, while there were no changes for placebo, those in the high-dose black raspberry group saw an average decrease of 3.3 mmHg in 24-hour systolic blood pressure, and a 5.4 mmHg decrease in nighttime systolic blood pressure. The berry benefit may come from the bioactive anthocyanins, flavanols, resveratrol, and tannins in the fruit that stimulate nitric oxide, a natural compound that relaxes and dilates blood vessels.


Reference: Nutrition Journal; October, 2015, Published Online.
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