Tea Blog

I frequently grumble about exaggerated claims regarding tea’s health benefits. However, I don’t dismiss the possibility that tea may offer real advantages, and I’ve written a number of articles on the subject. Surprisingly, I had not yet explored the potential relationship between tea consumption and stroke risk.

A stroke occurs when blood flow to the brain is interrupted, either by a clot or a ruptured blood vessel. According to the Centers for Disease Control and Prevention (CDC), stroke is a leading cause of death and disability in the United States, affecting hundreds of thousands of people annually.

While it would be unrealistic to suggest that simply drinking tea can prevent such a serious condition, some research indicates it may help reduce risk. A study conducted by researchers at UCLA suggested that drinking three cups of tea per day may reduce the risk of stroke by approximately 20 percent. This conclusion was based on a meta-analysis of existing studies rather than a single new experiment.

Although green tea often receives the most attention in health-related discussions, researchers found that both green tea varieties known for high antioxidant content and black tea varieties commonly consumed worldwide may offer similar benefits when it comes to stroke risk reduction.

For a general overview of these findings, see this news report summarizing research on tea consumption and reduced stroke risk. For more detailed information, you can review this academic abstract outlining the underlying meta-analysis of tea intake and stroke outcomes.

Another study released earlier in the year found that drinking four cups of green tea—or even one cup of coffee—was associated with a similar reduction in stroke risk. In that case, researchers analyzed data from approximately 84,000 individuals in Japan over a 13-year period. More information is available in this American Heart Association summary of research on green tea, coffee, and stroke risk.

While these findings are promising, it is important to view tea as just one potential factor within a broader lifestyle approach to reducing stroke risk.

See more of William I. Lengeman’s articles in this archive of tea-related writing by the author.

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