Drinking both tea and coffee each day has the most protective effect compared to drinking either one on its own, researchers from Japan's National Cerebral and Cardiovascular Centre have discovered.
Drinking one cup of coffee each day-but no green tea-reduces the risk of a stroke by 20 per cent, while drinking three cups of tea produces a 14 per cent lower risk, and four cups a day lowers the risk further to 20 per cent.
But drinking at least one cup of coffee and two cups of green tea has the most protective effect, reducing the risk by 32 per cent.
The researchers had analysed the lifestyles and diets of 83,269 adult Japanese aged from 45 to 74 years over a 13-year period.
(Source: Stroke, March 14, 2013; doi: 10.1161/STROKEAHA.111.677500).