Tea and reducing the risk of heart attack and strokes

There is strong evidence to suggest that antioxidants in green tea can inhibit the development of heart disease and reduce the risk of stroke and heart attack.


Drinking green tea can reduce cholesterol levels and tea flavonoids may increase coronary flow and promote the function of healthy blood vessels.


BBC News - Green tea 'may protect the heart'


Tea and Heart Attacks

A Japanese study in 2004 concluded that green tea consumption was associated with a lower incidence of Coronary Artery Disease in Japan and a long term study in Japan found, tea drinkers consuming more than 230gms of tea per day had a lower rate of first heart attacks and had significantly less risk of dying from a heart attack, and than those who drank less tea.

Tea and Heart Disease

A 2008 study at the Athens Medical School in Greece has shown that drinking green tea rapidly improves the health of the delicate cells lining the blood vessels and helps lower the risk of heart disease. “People who drink green tea have better blood vessel function just 30 minutes later. Specifically, green tea improves the function of endothelial cells. Endothelial cell dysfunction plays a key role in the development of clogged arteries, a process called atherosclerosis.”


This finding adds to the growing evidence that suggests flavonoids, the powerful antioxidants in green tea, may protect the heart. Black tea has previously been linked to short- and long-term improvements in endothelial function, but this is the first study to show that green tea offers a short-term improvement in the health of arteries.


Alexopoulos, N. European Journal of Cardiovascular Prevention and Rehabilitation, June 2008: vol 15: pp 300-305.


In another study, it was claimed that people who drank more than 6 cups a day of black tea had a 50% lower risk of coronary heart disease compared to those who drank no tea, even after adjusting for factors such as smoking, diet and weight.

Tea and Hypertension

A 2004 study in China showed that regularly drinking moderate strength green or oolong tea for 1 year, significantly reduces the risk of developing high blood pressure (hypertension) in the Chinese population.

Tea and Strokes 

Large quantities of black tea and other foods containing flavonoids such as fruit and vegetables, could help to reduce the risk of strokes. And research indicates that gallotannin, a substance found in green tea, may be more powerful than existing medicines in treating brain damage after a stroke.