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A Chinese study tracking more than 485,000 people reported that regular tea drinking reduced the risk of vascular disease, but drinking hot tea may increase the risk, and the results cannot be interpreted as direct cause and effect or recommendations for drinking tea.
When drinking tea, you should not only pay attention to the type of tea, but the temperature can also be related to health. A Chinese study of more than 485,000 adults found that people who drank tea at least three days a week had an 11% lower risk of vascular disease than those who drank tea less often. However, those who were accustomed to drinking hot tea had a 16% higher risk of vascular disease.
USA Today reported that some researchers pointed out that the above results suggest that tea drinking habits are related to disease risk, but it cannot be proven that drinking tea or specific temperatures can directly prevent or cause disease.
The study, published Oct. 21 in the Journal of Internal Medicine, followed adults ages 30 to 79 for nearly nine years and recorded more than 14,800 cases of vascular disease, including heart attacks, strokes and peripheral artery disease, CNN reported.
The study found that people who habitually drank “hot tea” had a 16% higher risk of vascular disease than those who did not drink tea regularly. In contrast, drinking room temperature tea or hot tea that is moderately hot and comfortable to drink is associated with a lower risk of vascular disease. However, the study relied primarily on participants’ self-reported tea drinking habits, and other differences in lifestyle may also have affected the results. It cannot be concluded that the difference in risk is due to the temperature of the tea.
Which is better, black tea or green tea?
The researchers also compared the association between different types of tea and the risk of vascular diseases and found that black tea was associated with a lower risk of different types of vascular diseases, while green tea did not show the same widespread association. Additionally, drinking concentrated tea in moderate amounts reduces the risk of vascular disease.
Tea contains natural compounds such as polyphenols, including flavonoids. Previous research has explored the potential antioxidant and anti-inflammatory effects of these ingredients, but this study did not confirm whether they explain the association between tea drinking and vascular disease risk.
How much tea is a good amount to drink in a day?
The study found that among those who drank tea at least once a week, those who drank about six to eight cups of tea a day had the lowest risk of vascular disease. However, this does not mean that people should start drinking six to eight cups of tea a day to avoid disease. The study did not determine the amount of tea needed to prevent disease, and the results cannot be construed as direct tea drinking recommendations.
The report recommends that when drinking tea, people should avoid drinking hot beverages that are hot and can cause irritation to the mouth or esophagus. They should not change the amount of tea they drink or consider drinking tea as a way to prevent heart disease based solely on this study.
Summary FAQ
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Research shows that people who drink tea at least three days a week have about an 11% lower risk of vascular disease than those who drink tea less often. However, this is only a statistical correlation and cannot prove that drinking tea directly prevents heart disease.
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In the study, people who reported they often drank hot tea had a 16% higher risk of vascular disease. The researchers reminded that high-temperature drinks may cause irritation to the mouth or esophagus, but it is still not possible to confirm that the temperature of the tea itself increases the risk.
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Priority should be given to avoiding hot tea which can burn your mouth. It is safer to choose tea at room temperature or medium temperature. However, intentionally drinking large amounts of tea is not recommended because studies have not yet confirmed the optimal amount of tea, and it cannot be used as a basis for disease prevention.
