A study, done in December of 2009, was published in the Indian Journal of Biochemistry & Biophysics. They gave a group of participants 1 teaspoon of cardamom powder daily for several weeks. The results showed a significant reduction in blood pressure. Combined with ginger and cinnamon, both warming spices that improve circulation, you can make a lovely tea to help your heart get healthy.
"This is notable because there (are) a lot of people out there with blood pressure in the 130s that we might previously have left alone, but if the results of this trial (are) as we think they are, it might be reason to try to get them to 120," said Dr. John D. Bisognano, professor of medicine at the University of Rochester Medical Center and president-elect of the American Society of Hypertension.