In a study from Dongguan Third People’s Hospital in China, scientists found that intake of the flavonoid quercetin can greatly reduce high blood pressure in patients suffering from heart disease.
Quercetin is a plant pigment commonly found in many plants and foods, such as onions, teas, apples, and red wine.
The researchers reviewed multiple studies that assessed the impact of quercetin on blood pressure and glucose levels.
Each study assessed blood glucose, total cholesterol, and/or insulin. 17 studies with a total of 886 participants were included.
The team found that quercetin could strongly reduce systolic blood pressure.
Participants who consumed quercetin for eight weeks or more showed strongly changed levels of high-density lipoprotein cholesterol.
Quercetin did not influence total cholesterol or alter fasting blood glucose concentrations.
In addition, quercetin was not found to cause serious adverse events in any of the included studies.
A reduction in blood pressure of more than 10 mmHg lowers heart disease risk by 50% for heart failure, 35% – 40% for stroke, and approximately 20% to 25% for heart attack.
The team confirmed that the favorable effects of quercetin on blood pressure support the use of quercetin for patients with high blood pressure.
If you care about blood pressure, please read studies about new suggestions for treating high blood pressure, and red onion skin could help reduce high blood pressure.
For more information about blood pressure, please see recent studies about how to live with high blood pressure, and results showing cannabis linked to blood pressure reduction in older people.
The study was published in Nutrition Reviews and conducted by Haohai Huang et al.
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