Daily Coffee Linked to 39% Lower Risk of Recurrent AFib: JAMA Study Finds
Scientists have challenged the long-held belief that coffee worsens heart rhythm problems, revealing that a daily cup may actually reduce outbreaks of atrial fibrillation (AFib) by 39%. Published in JAMA and part of the DECAF trial, this research overturns previous guidance advising AFib patients to avoid caffeine, instead suggesting coffee could have protective effects.
AFib is a common heart rhythm disorder causing rapid, irregular beats that increase stroke and heart failure risk. Rates are rising globally alongside aging populations and obesity. The DECAF study, led by researchers from UC San Francisco and the University of Adelaide, enrolled 200 regular coffee drinkers diagnosed with persistent AFib or atrial flutter. All participants underwent electrical cardioversion to restore normal heart rhythm, then were randomized to either drink at least one cup of caffeinated coffee daily or abstain for six months.
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