Egan BM et al
Does dark chocolate have a role in the prevention and management of hypertension?: commentary on the evidence.
Hypertension. 2010 Jun;55(6):1289-95. Epub 2010 Apr 19.
Several open-label studies reported that dark chocolate lowered BP among volunteers with a wide range of ages and baseline BPs. These studies suggest that dark chocolate could be useful for the prevention and management of hypertension in a broad segment of the population.