Study makes major predictions for tea drinkers

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Those who drink at least two cups a day tend to live longer

Britons who say they drink at least two cups of tea a day tend to live longer than those who don’t, a study from the National Health Database has found.

Scientists analyzed nearly 500,000 people aged 40 to 68 who are included in the UK Biobank, a database intended to help explore possible links between various medical conditions and genetic or environmental factors affecting patients. The paper, which was published Tuesday in the medical journal Annals of Internal Medicine, sought to find out if there was a correlation between tea drinking habits and mortality.

After reviewing over a decade of data, the researchers found that « Higher tea consumption was modestly associated with lower all-cause mortality risk among those who drank two or more cups daily. » The trend was similar whether the participants drank coffee or whether their genes allow them to metabolize caffeine, according to the report.

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The study does not imply causation, only correlation, and did not take into account factors not reflected in the database, such as the size of cups consumed. But the results indicate the drink can be part of a healthy diet, said the authors, who work at the National Institutes of Health at Bethesda in the United States.

The report is significant because the health benefits of tea have been studied primarily in Asia, where green tea is more popular than black tea, which predominates in Europe, including the UK.

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