Coffee vs. AFib: can ditching your morning cup keep your heart in rhythm?
NCT ID NCT05121519
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at whether stopping coffee helps prevent atrial fibrillation (AFib) from returning after a heart shock treatment called cardioversion. Two hundred coffee drinkers with AFib were randomly assigned to either keep drinking coffee or avoid it for six months. Researchers tracked how many people in each group had another AFib episode.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
coffee
What this could lead to
If quitting coffee reduces AFib recurrence, it could offer a simple lifestyle change to help manage the condition.
What could go wrong
This is a small, completed trial. Results may not apply to everyone, and quitting coffee might not make a difference for all patients.
Disclaimer
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This is a summary of
the original study
.
Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Locations
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Royal Adelaide Hospital
Adelaide, Australia
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Sunnybrook Health Science Centre
Toronto, Canada
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UCSF Parnassus
San Francisco, California, 94143, United States