In a report published in the February 2011 issue of the American Journal of Clinical Nutrition shows professor Aedin Cassidy of the University of East Anglia and researchers from Harvard University, that a higher intake of anthocyanins, a type of flavonoids found in raspberries, blood oranges and black currant-may protect against high blood pressure.
The trial is the first to assess the influence of flavonoiders on blood pressure. It included 23.043 men who participated in the Health Professionals follow-up Study, and 133.914 women who participated in the Nurses ' Health Study. We assessed dietary intake every four years over a follow-up period averaging 14 years.
During the follow-up period had 34.647 participants diagnosed with high blood pressure. The research team demonstrated a reduced risk of high blood pressure with the men and women who took the most anthocyanins-specifically 8% lower risk of high blood pressure compared to the group that had the lowest intake. For participants under 60 years was 12% lower risk.
Strawberries and blueberries were the most common sources of anthocyanins among trial participants. Intake of one or more servings of blueberries per week gave a 10% lower risk of high blood pressure compared to the risk for individuals who do not eat fruit as part of the diet (these and 20 other fruit and vegetable extracts are found in the ORAC-MAX 21 capsules).
"Anthocyanins can very easily be included in the diet, as they are found in many common foods", notes Dr. Cassidy, which is affiliated with the Department of Nutrition at the University of East Anglia Medical School. "Blueberries are mentioned most often in the experiment, because it is the most common type of Berry in the United States. Other good sources are blackcurrant, blood oranges, aubergines and raspberry ".
"Our results are exciting-they suggest that a dietary intake of anthocyanins, which most people will be able to overcome, can help to prevent high blood pressure", he concludes.
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