According to a study by the University of California, San Francisco (UCSF), there is no evidence that moderate coffee consumption can cause cardiac arrhythmia. On the contrary, consumption was associated with a 3% lower risk of arrhythmia, premature ventricular contractions or other common heart disease.
In the new study, scientists tried to understand whether habitual coffee intake was associated with an arrhythmia risk and whether genetic variants affecting caffeine metabolism could modify that association. In all, the survey had 386,258 participants.
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The researchers used genetic data and noted that people with the genetic variants associated with faster metabolism drank more coffee. The analysis provided a method to test the relationship between caffeine and cardiac arrhythmia in a way that did not rely on participant reports.
Approximately 4% of participants developed arrhythmia. No evidence of an increased risk of arrhythmias was observed. But it is worth noting that detailed information on the type of coffee involved in the study was not available.
“Only a randomized clinical trial can definitively demonstrate the clear effects of coffee or caffeine consumption, but our study found no evidence that drinking caffeinated beverages increases the risk of arrhythmia. The antioxidant and anti-inflammatory properties of coffee may play a role. paper, and some properties of caffeine may protect against some arrhythmias,” the authors conclude.
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