Current evidence from experimental studies in animals and humans along with 
findings from prospective studies indicates beneficial effects of green and 
black tea as well as chocolate on cardiovascular health, and that tea and 
chocolate consumption may reduce the risk of stroke. The strongest evidence 
exists for beneficial effects of tea and cocoa on endothelial function, total 
and LDL cholesterol (tea only), and insulin sensitivity (cocoa only). The 
majority of prospective studies have reported a weak inverse association between 
moderate consumption of coffee and risk of stroke. However, there are yet no 
clear biological mechanisms whereby coffee might provide cardiovascular health 
benefits. Awaiting the results from further long-term RCTs and prospective 
studies, moderate consumption of filtered coffee, tea, and dark chocolate seems 
prudent.