Dietary Polyphenol Intake, Blood Pressure, and Hypertension: A Systematic Review and Meta-Analysis of Observational Studies.

Increased intake of foods rich in anthocyanins can help to fight off hypertension.

​This study assessed the impact of high dietary exposure to polyphenols and flavonoids on the risk of hypertension using a meta-analytic approach. A total of 20 studies were considered for this meta-analysis. 

Researchers found out that habitual consumption of generous portions of foods packed with anthocyanins—a subclass of flavonoids—decreased the likelihood of acquiring hypertension by 8%. The data from this meta-analysis suggest that individuals who want to cut down their risk of hypertension should add more anthocyanin-containing foods to their diet.