According to a new study, drinking cranberry juice may improve blood pressure as well as vascular function.
10 healthy men between the ages of 18 and 40 participated in this study. Each participant drank 2 cups of cranberry juice per day. Researchers prepared the cranberry concentrate with concentrations of water ranging from 0 to 117%.
Cranberry juice is a source of phytonutrients which include phenolic acids, anthocyanins and proanthocyanidins. Because of this rich source of polyphenols cranberry juice was used to evaluate the effect it could have on vascular function. The majority of science on cranberries has focused on its benefits for supporting urinary tract health.
All of the cranberry juices improved flow-mediated vasodilation (FMD), which measures the flow of blood and vascular health. The cranberry juices that had the highest concentrations of cranberry polyphenols showed improvement in systolic blood pressure. The cranberry juices which were equivalent to drinking cranberry juice cocktail contained between 25-27% cranberry juice.
Further research is planned on a larger group of participants.
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