Does drinking Black Tea helps Heart Health?

Tea drinkers may be less prone to develop coronary artery disease, which can result in heart attacks and strokes, according to a growing body of research.

A research published in Circulation: Journal of the American Heart Association offers a potential solution. According to the study, drinking black tea may enhance endothelial cells' ability to line blood arteries in the heart and elsewhere, which helps control blood flow. It has been established that abnormal endothelial cell activity is a critical precursor to atherosclerosis, the arterial-hardening condition that results in coronary artery disease.

Black tea appears to have positive effects on endothelial cells throughout the long and short terms, according to study author Joseph A. Vita, MD. According to Vita, if people continue to drink tea for a month, the advantage is sustained. 

50 individuals with coronary artery disease participated in the trial and were randomized to either consume tea or water. The ability of the brachial artery, an artery that runs down the arm, to widen and let blood to flow, was assessed using ultrasound imaging two hours after consuming roughly two cups of each beverage. According to the paper, after consuming around four cups of tea or water each day for four weeks, longer-term outcomes were assessed using the same methodology.

According to the findings, drinking tea both temporarily and over a longer period of time enhanced arterial function, but drinking water had no such impact.

The Tea Trade Health Research Association, which receives funding from tea producers, supported the study.