Your Tea Drinking Habits Could Affect Heart Health, Study Shows

A recent study suggests that the way you drink tea might play a significant role in your heart health.

The research indicates that factors such as the temperature, strength, and type of tea can affect your cardiovascular well-being.

Key Findings of the Study

Published in the Journal of Internal Medicine, the study analyzed data from over 485,000 Chinese adults aged 30 to 79. It explored various aspects of their tea-drinking habits, including how often they drank tea, their preferred tea types, brewing strengths, and the temperatures at which they consumed their tea.

During an average follow-up of nearly nine years, researchers documented more than 14,800 instances of cardiovascular diseases, which encompassed heart attacks, strokes, and peripheral artery disease.

Individuals who indulged in tea at least three times a week exhibited an 11% lower risk of developing vascular disease compared to those who did not consume tea regularly. In contrast, those who drank their tea at extremely high temperatures faced a 16% increase in the risk of vascular disease.

Temperature and Strength Matter

The research also highlighted the importance of tea strength, noting that moderate-strength tea was linked to a reduced cardiovascular risk. Among the different types, black tea showed more consistent associations with a lower risk of various cardiovascular conditions compared to green tea.

Dr. Leana Wen, a wellness expert and clinical associate professor at George Washington University, discussed these findings. She noted that while individuals who regularly consumed tea had a lower risk, drinking it at a “burning hot” temperature significantly raised the risk of vascular disease.

Health Benefits of Tea

Tea boasts natural compounds called polyphenols, including flavonoids, which come with antioxidant and anti-inflammatory properties. These are believed to help protect the lining of blood vessels and enhance arterial health, leading to lower blood pressure.

Earlier studies have shown that regular tea consumption can aid in improving blood pressure and cholesterol levels, contributing to lower incidences of strokes and heart attacks.

Moreover, opting for unsweetened tea instead of sugary beverages can further aid in maintaining cardiovascular health by reducing sugar intake, which is beneficial for weight management.

Choosing the Right Tea

Both black and green tea come from the same plant, Camellia sinensis, but variations in processing yield different polyphenol compositions. Though both types offer health benefits, black tea had more consistent results in lowering cardiovascular risks in this study.

Dr. Wen advised that there’s no need for those who enjoy green tea to switch to black tea. Both can contribute to a heart-healthy diet, especially when consumed without added sugars.

Recommendations on Tea Consumption

The research indicated that participants drinking six to eight cups of tea daily exhibited the lowest risk of vascular disease. However, it’s essential to approach this recommendation with caution due to variations in individual preferences and definitions of cup sizes.

It’s also crucial to consider caffeine intake—an 8-ounce cup of black tea typically contains 30 to 50 milligrams of caffeine, which can have effects on sleep and anxiety. The FDA recommends limiting caffeine to 400 milligrams per day for adults, advising pregnant individuals to keep it under 200 milligrams.

Practical Advice for Tea Drinkers

For those who enjoy tea, it's wise to avoid consuming it at excessively hot temperatures to prevent burns. Consuming tea at a comfortable temperature not only helps in enjoying it better but might also shield against potential health risks.

Those new to tea shouldn’t feel pressured to start. There are numerous other ways to lower risks of cardiovascular disease, including maintaining regular physical activity, refraining from smoking, managing blood pressure and cholesterol, and following a nutritious diet.