Researchers have found that people who drink between 3-5 cups of coffee per day are less likely to have coronary artery calcium (CAC) than those who drank no coffee at all. There was also a correlation between people who drink between 1-3 cups of coffee per day and a reduced prevalence of CAC, according to a paper published Monday in the journal Heart.
Calcium in the coronary artery isn’t always a problem, but at high enough levels it can be a sign of coronary heart disease, which occurs when plaque builds up in the coronary arteries and reduces blood flow to the heart.
The data came from over 28,000 men and women over a two year span, who completed a 103 item food frequency questionnaire. Their CAC was tracked by CT scans that measured the amount of calcium in their arteries.