Tea is a popular beverage around the world. Previous studies have shown an association between tea drinking and reduced mortality. But these studies have mostly looked at Asian populations who typically drink green tea. In places such as Europe and the United States, black tea is more common. The few studies done on black tea-drinking populations have produced mixed results.

A research team led by Dr. Maki Inoue-Choi of NIH’s National Cancer Institute (NCI) investigated the association between tea drinking and mortality in the United Kingdom, where black tea is popular. The team used data on nearly half a million people, ages 40-69, who enrolled in the UK Biobank study between 2006 and 2010.