The key facts

  • Regular tea consumption was associated with an 11% lower risk of vascular disease
  • The most pronounced effect was seen with six to eight cups a day
  • Very hot tea was associated with an increased risk

A large study based on data from nearly 486,000 people

Regular tea consumption may reduce the risk of vascular disease by 11%. Researchers came to this conclusion after analyzing data from nearly 486,000 adults living in China. The results were published in the Journal of Internal Medicine (JIM). The study involved 485,934 people whose health was monitored for an average of 9.05 years. During this time, scientists recorded 14,863 cases of vascular disease, including cardiovascular and cerebrovascular disorders, cor pulmonale, and peripheral artery disease.

Six to eight cups a day and tea type

The analysis showed that people who regularly drank tea had, on average, an 11% lower risk of developing these diseases. The strongest association was observed with the consumption of approximately six to eight cups a day. According to the researchers, black tea showed a more consistent association with a reduced risk of vascular disease than green tea. The most favorable results were also linked to drinking tea of moderate strength. Very hot tea, on the other hand, was associated with an increased risk of vascular disease.

Connection with habits and lifestyle

The researchers also assessed the relationship between tea consumption, harmful habits, and physical activity. The most favorable indicators were observed in people who regularly drank tea, did not smoke, and led an active lifestyle.