Research, published in the journal Heart, found that people who consumed three to five cups a day had the least risk of coronary calcium in their arteries.
Coronary artery calcium is an early indicator coronary atherosclerosis, a build-up of fatty material which can narrow arteries and lead to blood clots, a trigger for heart attacks.
Researchers from South Korea studied a group of more than 25,000 people, who had no signs of heart disease.
Victoria Taylor, our Senior Dietitian, said: “While this study does highlight a potential link between coffee consumption and lower risk of developing clogged arteries, more research is needed to confirm these findings and understand what the reason is for the association.
“We need to take care when generalising these results because it is based on the South Korean population, who have different diet and lifestyle habits to people in the UK.”