Improved Meta Analysis of randomized controlled trials on the comparative efficacy of daily low-intake of dark chocolate among middle-aged hypertensive patients as compared to placebo

An improved meta analysis is conducted to reveal, as compared to placebo, that daily low-intake of dark chocolate reduces systolic blood pressure (SBP) and diastolic blood pressure (DBP). In this study, there were six studies that met the inclusion-exclusion and were combined for analysis. The study designs used in these studies were randomized controlled clinical trials. The previous meta analysis compared the efficacy of cocoa and tea in relation to the reduction of blood pressure. (Tambert, Roesen, Shomig, 2007) The goal of this meta analysis is to improve this meta analysis study by adding an extra study. Collectively, there were 141 participants in this meta analysis study. The results of the study show that there was a significant decrease in SBP and DBP after taking dark chocolate.