Yes, moderate coffee consumption is generally safe for those with atrial fibrillation, but it’s best to consult a healthcare provider for personalized advice.
If you have atrial fibrillation (AFib), you might wonder if your daily coffee habit is safe. Recent research suggests moderate coffee consumption may not worsen AFib and could even offer some benefits.
Can You Drink Coffee With AFib?
Multiple large studies show coffee doesn’t increase AFib risk. A 2025 study in Circulation found each daily cup of coffee was associated with a 3% lower risk of developing arrhythmias. Another study of healthy women found no link between caffeine intake and increased AFib risk.
How Much Caffeine Is Safe?
The Journal of the American College of Cardiology suggests up to 300mg of caffeine daily (about 3 cups of coffee) is generally safe for people with heart rhythm issues. The FDA considers 400mg (4-5 cups) safe for healthy adults.
How Coffee Affects Your Heart
Caffeine stimulates the release of epinephrine and norepinephrine, which can affect heart function. However, coffee also contains antioxidants and other compounds that may benefit heart health.
Individual Responses Vary
While most people tolerate moderate caffeine well, some find it triggers palpitations. If coffee worsens your AFib symptoms, consider reducing intake or switching to low-caffeine alternatives.
Other Caffeinated Drinks and AFib
| Drink | Caffeine Content | AFib Considerations |
|---|---|---|
| Black Coffee | 95mg per 8oz | Most studied, generally safe |
| Green Tea | 28mg per 8oz | Low doses may protect against AFib |
| Energy Drinks | 80-300mg per can | High caffeine plus stimulants may trigger AFib |
Energy Drink Warning
Unlike coffee, energy drinks combine high caffeine with other stimulants. Cases of AFib in young people after energy drink consumption have been reported, as noted in this AHA study.
Practical Tips for Coffee Drinkers With AFib
- Track your symptoms with a food diary
- Consider limiting espresso, which has higher caffeine concentration
- Try single-serve brewing methods to control portions
- Avoid coffee if you notice consistent symptom worsening
When to Avoid Coffee
If you have sleep disorders, anxiety, or uncontrolled high blood pressure, your doctor may recommend limiting caffeine regardless of AFib status.
The Bottom Line
Current evidence suggests moderate coffee consumption (1-3 cups daily) is safe for most people with AFib. As research continues to evolve, always consult your cardiologist about your specific situation. Remember that lifestyle factors like stress management and sleep quality often impact AFib more than moderate caffeine intake.
