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- RESEARCH HIGHLIGHT
A Daily Cup of Coffee May Significantly Reduce Atrial Fibrillation, New Study Finds
In a surprising turn of events that could reshape dietary recommendations for millions, a major clinical trial has demonstrated a nearly 40% reduction in the recurrence rate of atrial fibrillation among individuals who consume a single cup of coffee each day. The findings, released on November 20, 2025, directly challenge the long-held medical belief that caffeine is a trigger for this common heart arrhythmia.
atrial fibrillation (AFib), a quivering or irregular heartbeat, affects an estimated 33.5 million people worldwide and dramatically increases the risk of stroke, heart failure, and other cardiovascular complications. The DECAF trial – a rigorously controlled study – offers a potential, simple intervention for managing this condition. This research is notably notable given the increasing prevalence of AFib as global populations age and the limitations of current treatment options, which often involve medication with significant side effects or invasive procedures. Researchers are now focused on understanding the underlying mechanisms driving this protective affect, with the hope of developing more targeted therapies.
The DECAF Trial: Key Findings
The DECAF trial, conducted across multiple cardiology centers, involved a cohort of patients already diagnosed with atrial fibrillation. Participants were randomly assigned to either continue their usual caffeine intake or to consume a standardized daily dose of coffee. Over a one-year follow-up period, researchers observed a statistically significant 38.8% lower rate of AFib recurrence in the coffee-consuming group compared to the control group. The study meticulously accounted for confounding factors such as age, sex, pre-existing health conditions, and medication use.
while the precise mechanism remains under inquiry,researchers hypothesize that compounds within coffee,beyond caffeine,may play a role in stabilizing heart rhythm. Further studies are planned to explore the impact of different coffee types, brewing
