A study of nearly 450,000 Britons concludes that daily coffee consumption is “associated with a significant reduction in cardiovascular events and mortality”.
A “significantly reduced” mortality risk. A new study, published Tuesday in European Journal of Preventive Cardiology, analyzed the benefits of coffee for the body. She concludes that drinking 2-3 cups of coffee a day, whether decaf, ground or instant, is “associated with a significant reduction in cardiovascular events and mortality.”
“These results suggest that light to moderate consumption of ground, instant and decaf coffee should be considered part of a healthy lifestyle,” said Peter Kistler of Baker Institute for the Heart and Diabetes (Australia), one of the co-authors of the study.
The study was carried out with information provided by a cohort of 449,563 participants, with a mean age of 58 years, taken from the UK Biobank database. It “contains detailed genetic and health information from half a million British participants”. The median follow-up for this group “was 12.5 years,” the authors say.
A 27% lower probability of death from two to three cups of ground coffee
Participants were divided into six groups: those who did not drink coffee, less than one a day, one, two to three, four to five and more than five cups a day. Among the approximately 450 thousand profiles selected for the study, 198,062 (44.1%) were consumers of soluble coffee, 82,575 (18.4%) of ground coffee and 68,416 (15.2%) of decaf.
The results of each group were compared to understand the impact of coffee on health and, if the benefits of this drink are observed with one cup a day, they peak with 2 or 3 cups. With higher consumption (4 cups or more), there are always benefits, but they are less and less important.
Compared to people who didn’t drink coffee, those who consumed 2 to 3 cups of decaf coffee a day had a 14% lower average probability of death, says Bloomberg. That same probability was 27% for two to three cups of ground coffee a day and 11% for soluble coffee.
Also compared to the group of non-coffee drinkers, the risk of cardiovascular disease was reduced by 6% for decaf (2 to 3 cups a day), by 20% for those who consume ground coffee and by 9% for coffee. soluble group.
On the other hand, “ground and instant coffee – but not decaf – were associated with reduced arrhythmia” in participants.
Coffee is made of “over 100 components”
It is still difficult to understand which element plays in favor of health in coffee. Coffee is a “complex alliance of more than 100 biologically active components, with caffeine being the most recognizable”, underline the researchers. It is also to partially study the other components that decaf are part of the study.
Coffee “also contains polyphenols”, antioxidants “and microelements such as magnesium”, the study notes. However, “these constituents have been shown to reduce oxidative stress, modulate metabolism” or even “improve the gut microbiome.”
Several other studies prior to this one have already noted the benefits of coffee consumption on the body. In 2017, research found “that higher coffee consumption was associated with a lower risk of all-cause mortality, most particularly diseases of the circulatory and digestive system.”