Of the 343 persons who drank in the five tea studies, tea, and 171 172 were used as controls, for a median duration of four weeks. Drinking tea was not associated with a reduction in blood pressure in any of the studies. http://www.proscar5mg.org/users-reviews
Dirk Taubert and his colleagues at the University Hospital of Cologne, Germany conducted meta-analysis meta-analysis of 10 previously published studies, five of cocoa ‘s effects on blood pressure and five with tea. All results have been published from 1966 to 2006, involving at least 10 adults and lasted at least seven days. The studies were either randomized trials, in which some participants were randomly assigned to cocoa or tea and some control groups or used a crossover design, in which the participants was blood pressure blood pressure and evaluated after consuming cocoa products or tea.