date:Apr 12, 2013
d Asian traditional medical systems. In the late 1990s, Iranian researchers clinically demonstrated the effectiveness of this treatment. They assigned 54 adults with high blood pressure to drink 10 ounces of either or hibiscus tea or black tea once a day for 12 days. They found that while blood pressure decreased in both groups, it decreased significantly more in the hibiscus group (a total of 10 percent).
This was followed by a pair of studies that compared with hibiscus tea directly to pharma