New Study Links Regular Tea Consumption to Lower Risk of Vascular Disease

A comprehensive new study published in the Journal of Internal Medicine indicates that regular tea consumption can lower the overall risk of developing vascular disease by 11%. Researchers from the Chinese Academy of Medical Sciences and Peking Union Medical College analyzed health data from nearly 486,000 participants over an average follow-up period of about nine years to evaluate how tea impacts cardiovascular wellness.

During the multi-year tracking period, 14,863 cases of vascular disease were recorded, which included heart attacks, strokes, pulmonary heart disease, and peripheral artery disease. After adjusting for lifestyle factors such as smoking, exercise, and body weight, the analysis revealed that individuals who consumed tea at least three days a week experienced an 11% reduction in risk compared to those who drank it less frequently.

The data showed that the lowest estimated risk occurred among individuals who drank approximately six to eight cups of tea per week. Furthermore, participants who maintained regular tea habits, refrained from smoking, and engaged in high levels of physical activity saw their risk of vascular disease plummet by approximately 45%.

Medical experts attribute these potential cardiovascular benefits to natural antioxidant and anti-inflammatory compounds found in tea, such as polyphenols and flavonoids. According to Dr. Leana Wen, an emergency physician and clinical associate professor at George Washington University, these compounds help blood vessels relax, improve blood pressure, and reduce overall strain on the heart.

The study also evaluated variations based on tea type and preparation methods, noting that black tea was associated with lower risks across a broader range of cardiovascular conditions than green tea. However, the research sounded a note of caution regarding beverage temperature. Drinking extremely hot tea was associated with a 16% higher risk of vascular disease compared to abstaining from regular tea consumption.

Dr. Wen advised consumers to avoid drinking tea at temperatures hot enough to scald the mouth or throat. Additionally, health professionals caution that excessive consumption of caffeinated varieties like green and black tea can lead to unwanted side effects such as anxiety, insomnia, and gastrointestinal issues, reminding the public to stay well within the recommended daily limit of 400 milligrams of caffeine.

Complementing these findings, updated dietary guidelines from the American College of Cardiology emphasize that moderate amounts of coffee and tea—equivalent to two to five standard cups per day—are safe for most adults and associate with lower risks of cardiometabolic diseases. Health authorities continue to recommend unsweetened beverages like water and tea as superior alternatives to sugary drinks for long-term heart health.