A recent study which held at the University of Western Australia told that having a cup of black tea a day may cut the blood pressure. This study involves 95 volunteers with normal blood pressure, later they grouped into two separate clusters. A group drank black tea mean while the other drank a beverage with caffeine inside.
The result was measured after each group drank their beverages three times per day for six months. After the six months, volunteers who drank black tea indicate to have lower blood pressure for 2 mm Hg compared to the early stage when the study started. The other volunteers who drank beverage with caffeine showed their blood pressure went up about 1 mm Hg for the systolic and went up foe 0.5 mm Hg for the diastolic.
“Those are small changes and are nothing like what you would see if you took a blood pressure lowering medication,” said Dr. Joseph Vita, who has studied flavonoids at the Boston University School of Medicine and was not involved with the study.
The research was funded through government grants and by Unilever Research and Development, which is an arm of the company that owns the Lipton brand. According to the researchers, the findings might provide a bigger benefit if they are applied to a large group.
Read more: http://www.foxnews.com/health/2012/01/26/drinking-black-tea-may-cut-blood-pressure/