Light-to-moderate coffee drinking associated with health benefits

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Light-to-moderate coffee drinking associated with health benefits
Image: Pixabay

Up to three cups of coffee per day is associated with a lower risk of stroke and fatal heart disease, according to new research by European Society of Cardiology (ESC).

Up to three cups of coffee per day is associated with a lower risk of stroke and fatal heart disease, according to research presented at ESC Congress 2021.

“To our knowledge, this is the largest study to systematically assess the cardiovascular effects of regular coffee consumption in a population without diagnosed heart disease,” said study author Dr. Judit Simon, of the Heart and Vascular Centre, Semmelweis University, Budapest, Hungary.

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“Our results suggest that regular coffee consumption is safe, as even high daily intake was not associated with adverse cardiovascular outcomes and all-cause mortality after a follow-up of 10 to 15 years,” she continued. “Moreover, 0.5 to three cups of coffee per day was independently associated with lower risks of stroke, death from cardiovascular disease, and death from any cause.”

Even though coffee is among the most consumed beverages in the world, little is known about the long-term impact of regular consumption on cardiovascular health.

This study investigated the association between usual coffee intake and incident heart attack, stroke and death. The study included 468,629 participants of the UK Biobank with no signs of heart disease at the time of recruitment. The average age was 56.2 years and 55.8 per cent were women.


Participants were divided into three groups according to their usual coffee intake: none (did not consume coffee on a regular basis, 22.1 per cent), light-to-moderate (0.5 to 3 cups/day, 58.4 per cent) and high (more than 3 cups/day, 19.5 per cent).

The researchers estimated the association of daily coffee consumption with incident outcomes over a median follow-up of 11 years using multivariable models. The analyses were adjusted for factors that could influence the relationship including age, sex, weight, height, smoking status, physical activity, high blood pressure, diabetes, cholesterol level, socioeconomic status, and usual intake of alcohol, meat, tea, fruit and vegetables.

Compared to non-coffee drinkers, light-to-moderate consumption was associated with a 12 per cent lower risk of all-cause death, 17 per cent lower risk of death from cardiovascular disease and 21 per cent lower risk of incident stroke.


To examine the potential underlying mechanisms, the researchers analysed the association between daily coffee intake and heart structure and function over a median follow-up of 11 years. For this, they used data from 30,650 participants who underwent cardiac magnetic resonance imaging (MRI), which is considered the gold standard for the assessment of cardiac structure and function.

Dr. Simon said, “The imaging analysis indicated that compared with participants who did not drink coffee regularly, daily consumers had healthier sized and better functioning hearts. This was consistent with reversing the detrimental effects of ageing on the heart.

“Our findings suggest that coffee consumption of up to three cups per day is associated with favourable cardiovascular outcomes. While further studies are needed to explain the underlying mechanisms, the observed benefits might be partly explained by positive alterations in cardiac structure and function.”

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Deirdre Tynan is an award-winning journalist who enjoys bringing the best in news reporting to Spain’s largest English-language newspaper, Euro Weekly News. She has previously worked at The Mirror, Ireland on Sunday and for news agencies, media outlets and international organisations in America, Europe and Asia. A huge fan of British politics and newspapers, Deirdre is equally fascinated by the political scene in Madrid and Sevilla. She moved to Spain in 2018 and is based in Jaen.

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