How Coffee Really Affects Your Heart Health

You’ve heard it before: coffee’s bad for your heart, tea is good. But if you love your morning cup — or worry it might be hurting you — here’s what the science actually says about coffee and cardiovascular health.

The short answer: for most people, coffee has little to no negative impact on heart health. Habitual drinkers see no meaningful blood pressure rise from two cups, and filtered coffee doesn’t affect cholesterol levels. In fact, coffee can be part of a healthy diet — even for those with heart concerns.

What Early Studies Got Wrong About Coffee

Concerns about coffee and health aren’t new. Back in 17th-century Europe, coffee was thought to aid digestion and treat gout — but also blamed for causing impotence and paralysis. Those ideas were wrong, just like some modern myths. Today, researchers focus more specifically on coffee’s relationship with heart health, especially blood pressure, cholesterol, and artery function.

How Coffee Impacts Blood Pressure and Heart Rate

Some non-habitual coffee drinkers may experience a temporary rise in blood pressure — about 2 to 3 mm Hg — after two cups of coffee. But for regular drinkers, this effect doesn’t occur. Coffee can cause a brief increase in heart rate, but it doesn’t lead to any dangerous heart rhythm abnormalities.

Coffee, Cholesterol, and Filtered Brewing

Unfiltered or boiled coffee (like French press or Turkish coffee) contains natural oils that can raise both total cholesterol and LDL (“bad”) cholesterol levels. However, filtered coffee — such as that made with a paper filter — removes these oils, and studies show it has no significant impact on cholesterol. That means choosing filtered brewing methods is key for heart-conscious coffee drinkers.

Does Coffee Cause Heart Disease or Artery Issues?

Large, long-term studies — tracking coffee drinkers for 10 to 20 years — consistently show no increase in coronary heart disease risk among people who drink regular (caffeinated) or decaffeinated coffee. In fact, some research suggests that two cups of coffee per day may help promote arterial relaxation. There’s no solid evidence that coffee causes heart disease.

Coffee and Heart Attacks: What’s the Real Risk?

For individuals who already have coronary heart disease, there is a very small potential risk. In sedentary people with risk factors who aren’t used to drinking coffee, a morning cup might slightly increase the chance of a heart attack — but the risk is minimal. This may be due to exaggerated temporary changes in blood pressure or nervous system activity affecting vulnerable plaque. Genetic factors also play a role: a Costa Rican study found that slow caffeine metabolizers might have a higher risk of heart attack after drinking coffee. Overall, though, the actual risk is extremely low.

And What About Tea?

Comparing coffee and tea directly is tricky, since tea drinkers often have healthier overall diets and lifestyles. Observational studies suggest both black and green tea may help reduce coronary heart disease risk — but only at around 5 to 6 cups per day. There’s no clear winner between coffee and tea when it comes to heart benefits.

FAQ

Does coffee increase blood pressure?

For non-habitual drinkers, two cups of coffee may raise blood pressure by 2–3 mm Hg temporarily. But regular coffee drinkers don’t experience this effect. If you have high blood pressure but enjoy coffee, you can usually continue drinking it without issues.

Is unfiltered coffee bad for cholesterol?

Yes. Unfiltered or boiled coffee (like French press or Turkish) contains oils that can raise total and LDL cholesterol. Filtered coffee removes these oils and doesn’t negatively affect cholesterol levels.

Can coffee cause heart attacks?

For most people, no. There’s a very small increased risk only in sedentary individuals with existing heart disease risk factors who aren’t used to drinking coffee. Even then, the risk is minimal and not a concern for the general population.

Does decaf coffee have the same heart effects as regular coffee?

Long-term studies show no difference in coronary heart disease risk between regular and decaf coffee drinkers. Both are considered safe for heart health.

Is tea better for your heart than coffee?

Not necessarily. Both tea and coffee appear to have heart benefits in observational studies, but tea drinkers often have healthier lifestyles overall. You need about 5–6 cups of tea daily to see a cholesterol benefit. Choose based on taste preference.

Should I avoid any types of coffee for heart health?

Avoid unfiltered or boiled coffee (e.g., French press, Turkish) as it can raise cholesterol. Filtered coffee is safe. If you add sugar, opt for low-calorie, low-fat options.

Recommended FrontStreet Coffee for Heart-Conscious Brewing

For filtered coffee that supports heart health, try FrontStreet Coffee’s Ethiopia Humbera — bright and juicy with citrus and floral notes — or Yirgacheffe, offering lemon, berries, and soft acidity. Both shine as filtered pour-overs and deliver smooth, low-oil cups. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.