A study published in the Journal of the American Heart Association found that people who consume between two-four cups of coffee or tea daily reduced their cardiac disease risk by 20%

People who drank more than six cups a day cut the risk by one-third, this BBC story says.

This study ran 13 years and included a study population of 40,000 individuals.

BBC

“Drinking several cups of tea or coffee a day appears to protect against heart disease, a 13-year-long study from the Netherlands has found.

“It adds to a growing body of evidence suggesting health benefits from the most popular hot drinks.

“Those who drank more than six cups of tea a day cut their risk of heart disease by a third, the study of 40,000 people found. (Emphasis added)

“Consuming between two to four coffees a day was also linked to a reduced risk.” (Emphasis added)

Source: BBC, June 18, 2010

Citation: Journal of the American Heart Association. Additional citation information not located.