Coffee consumption and blood pressure

Publisher Website
Google Scholar
Abstract
Objective:To examine the effect of moderate coffee consumption on blood pressure over a prolonged period of time. Previous work in this area has used primarily purified caffeine. Design:A prospective, randomized, crossover clinical trial. Setting:A hypertension specialty outpatient clinic at the University of Tennessee, Memphis. Patients:Healthy, young, white men who were moderate coffee drinkers (. Interventions:Subjects were randomized to one of two groups: Group A drank three or more cups of coffee/day for two months, then crossed over to abstaining from coffee for two months; group B abstained from coffee first, then crossed over to drinking coffee. Only filter-brewed coffee was used. Subjects were seen at monthly intervals for blood pressure measurements. Measurements and main results:The average coffee consumption was 3.6 cups/day during the coffee-drinking phases. There was no difference between the coffee-drinking phase and the abstention phase in either systolic blood pressure (110.1 mmHg vs. 108.0 mmHg, respectively; 95% CI of difference-7.3, 2.5) or diastolic blood pressure (67.2 mmHg vs. 69.6 mmHg, respectively; 95% CI of difference-2.2, 6.4). Conclusions:Moderate daily consumption of coffee does not elevate blood pressure.

This publication has 7 references indexed in Scilit: