Study Reveals the Benefits of Tea for Heart Health and Warns Against a Common Habit

A large-scale study published in the Journal of Internal Medicine has revealed a possible link between regular tea consumption and a reduced risk of cardiovascular diseases. Researchers also highlighted an important factor related to the temperature and strength of the beverage.

The study, which followed nearly 486,000 adults in China over a median period of nine years, recorded 14,863 cases of vascular disease. The findings showed that regular tea consumption was associated with an 11% lower risk of vascular disease compared with irregular consumption. This association included cardiovascular diseases, cerebrovascular diseases, and peripheral artery disease.

However, the researchers emphasized that this observational study identifies an association between dietary habits and health outcomes without directly establishing a causal relationship.

Regarding different types of tea, the findings indicated that the association between tea consumption and reduced vascular risk was more consistent among black tea drinkers than among green tea drinkers. Both varieties come from the same plant, Camellia sinensis, and contain polyphenols, plant compounds known for their antioxidant properties.

The study also warned against drinking tea at excessively high temperatures, as this habit was associated with an increased risk of vascular diseases. Researchers pointed to the potential thermal damage that very hot liquids can cause to the tissues of the mouth and esophagus, recommending that tea be allowed to cool slightly before consumption.

In terms of quantity and strength, the analysis found that the lowest risk levels were observed among individuals who consumed between six and eight cups of tea daily, within the group of regular tea drinkers who consumed tea at least once a week. More favorable results were also observed among those who preferred moderately strong tea.

Nevertheless, the researchers stressed the importance of considering caffeine content and individual tolerance, depending on each person’s health condition.

Finally, the study emphasized that drinking tea alone is not enough to provide complete protection against cardiovascular diseases. The data showed that the lowest risk was recorded among individuals who combined regular tea consumption with avoiding smoking and maintaining consistent physical activity.

These findings reinforce the idea that cardiovascular health depends on a combination of healthy, complementary lifestyle habits rather than any single dietary choice.