Is there a Link between Coffee and Atrial Fibrillation?

You may be familiar with AFib ( atrial fibrillation), which is also called AFib. Research shows that caffeine does not cause AFib or abnormal heart rhythms.

Are Coffee and AFib inextricably linked?

Many studies have been done, and it does not seem that there's a link between drinking coffee and getting AFib.

One large study of data on hundreds of thousands of people found that drinking coffee was not associated with an increased risk of AFib.

Another large study of men found evidence that drinking coffee could actually reduce your risk of AFib. The study found that people who drank at least one cup of coffee per day were less likely to develop AFib. Another study was done in 2021 and found that every cup of coffee consumed by a person linked to a 33% reduced risk of having an abnormal heart rhythm, also known as arrhythmia.

What Does AFib Have to Do with the Caffeine Level You Consume?

People with AFib are not advised to consume the highest amount of caffeine. According to the Journal of the American College of Cardiology's review of the research, consuming up to 300 mg of caffeine per day is safe. It may also protect you from heart arrhythmias.

Studies have found that regular caffeine intake isn't associated with AFib. One study examined healthy women's intake of caffeine from coffee, tea, soda, and chocolate . A higher risk of AFib was not associated with caffeine. The study reported that small to moderate amounts of caffeine could even be helpful.

Another study has found that AFib risks may go down with increased caffeine intake. One study found that the risk of AFib decreased with every 300 milligrams of caffeine, or about three cups of coffee, people got per day.

What Does Coffee and Caffeine Do to Your Heart?

We don't know what the role caffeine plays for heart health. Aside from caffeine, coffee could reduce the likelihood of AFib.

Also, coffee promotes the production of hormones such as epinephrine or norepinephrine which affect the function and health of the heart.

You may notice a different effect depending on whether you consume caffeine regularly or not. The way you consume coffee, including with or without meals, may affect its effects. Experts say more studies should be done to find out how caffeine impacts first-time AFib and recurring AFib for people with and without arrhythmias.

What is known about AFib and other caffeinated drinks? In most studies, coffee is the main source of caffeine. It contains caffeine as well as fats, carbs, minerals, vitamins and antioxidants. Coffee is a different beverage than energy drinks or soda.

A 2016 study found that drinking green tea could protect against AFib, but only in low doses. Both persistent AFib which lasts longer than seven days and paroxysmal AFib which can end on its own in 7 days, as well as persisting AFib from green tea had their effectiveness decreased. However, people who drank more tea had less protection.

Many energy drinks contain high amounts of caffeine and herbs that can act as stimulants. There is not much information on this drink, but there are cases of AFib among young people who have consumed energy drinks without or with alcohol.

In short, can I drink coffee with AFib?

The research on the topic is inconsistent. The evidence does not support the idea that AFib sufferers should consume moderate amounts of caffeine. However, caffeine and coffee can have different effects on people.

There are other factors that can impact how your coffee consumption affects your health. One study of people with AFib found that major life stress may make you drink more coffee, leading to a higher risk of AFib. Consuming too much espresso can increase the likelihood of developing persistent AFib. However, this study only included 400 people, while the studies previously mentioned were much larger.

Keep in mind, many studies look at healthy people who drink coffee regularly for a long time. A built up tolerance to caffeine could play an important role in your heart's health.

Your doctor should be consulted if caffeine is triggering your AFib. Coffee can trigger their AFib, according to some people.