Is coffee good for our cardiovascular health?
There is some new research which looks at the effects of coffee on our cardiovascular health, as well as all cause mortality. And the findings may surprise you.
Despite what you may have been told in the past, much of the intuitive advice on caffeinated drinks may have been ill founded. After all, while it makes sense that coffee might cause arrhythmia or be detrimental to our cardiovascular health, it looks like there is a growing body of evidence that suggests the opposite.
A recent study from September 2022 found that coffee was beneficial for preventing all cause mortality, and, as counter intuitive as it may seem, it was not associated with arrhythmias, which are abnormal heart beats.
The authors concluded, "Decaffeinated, ground, and instant coffee, particularly at 2–3 cups/day, were associated with significant reductions in incident CVD and mortality. Ground and instant but not decaffeinated coffee was associated with reduced arrhythmia."
While this supports the findings of previous studies, the real weight of the study comes from the sample size of 449 563 people who are enrolled in the UK biobank. A down side to the sample is that is is a recall survey, so, participants may not be trustworthy sources of information. However, there remains a growing body of evidence to suggest that moderate doses of coffee are good for your cardiovascular system, as well as your overall mortality.
David Chieng, Rodrigo Canovas, Louise Segan, Hariharan Sugumar, Aleksandr Voskoboinik, Sandeep Prabhu, Liang Han Ling, Geoffrey Lee, Joseph B Morton, David M Kaye, Jonathan M Kalman, Peter M Kistler, The impact of coffee subtypes on incident cardiovascular disease, arrhythmias, and mortality: long-term outcomes from the UK Biobank, European Journal of Preventive Cardiology, 2022;, zwac189, https://doi.org/10.1093/eurjpc/zwac189
Voskoboinik A, Kalman JM, Kistler P, Caffeine and arrhythmias: time to grind the data JACC Clin Electrophysiol 2018; 4: 425-432.