Coffee Consumption Linked to Lower Risk of Atrial Fibrillation, New Trial Suggests
NEW YORK – A new clinical trial indicates that drinking caffeinated coffee may be associated with a reduced risk of atrial fibrillation (A-fib), the most common type of irregular heartbeat. The research, detailed in recent reports, suggests a potential cause-and-effect relationship between coffee consumption and A-fib recurrence.
Previous observational studies hinted at a link between coffee intake and lower A-fib risk, but this new trial establishes a more definitive connection, according to Dr. Gregory Marcus. “I was somewhat surprised at the magnitude of how protective caffeinated coffee does seem to be to prevent atrial fibrillation,” Marcus saeid.
The study found that consuming just one cup of coffee daily appeared to offer a protective effect. It remains unclear whether drinking more than one cup provides additional benefit.
However, experts emphasize moderation. Dr. Johanna Contreras, a cardiologist at Mount Sinai Fuster Heart Hospital in New York, noted the study’s key takeaway: “drinking a cup of coffee a day seems to be perfectly safe for peopel with A-fib, rather than that coffee is protective.” She cautioned, ”There’s not a hard-and-fast rule. Not everyone has the same reaction to caffeine.” Excessive caffeine intake from multiple sources, such as coffee, Red Bulls, and Celsius, is different and possibly problematic.
Researchers speculate the benefit may stem from anti-inflammatory compounds in coffee,or potentially caffeine’s stimulation of the adrenaline response,which could help prevent A-fib episodes often occurring during periods of relaxation.
It’s vital to note the trial focused on individuals not currently experiencing A-fib episodes. Caffeine could worsen symptoms during an active A-fib event, potentially increasing pulse rate.
For those who already enjoy coffee, the findings offer reassurance. “This shows you can have a cup of coffee in the morning and be OK if you have A-fib,” Contreras said. The study did not account for differences in exercise habits or diet, and further research is needed to fully understand the relationship.
