Coffee and Tea Both Benefit Heart Health, Studies Show

If you’ve been told to cut back on coffee for your heart, or been told tea is the only heart-healthy choice, it’s time for an update. Decades of conflicting claims have left many confused—but current research offers clear, evidence-based guidance. Whether you're drinking coffee or tea, your morning brew doesn't have to come with guilt.

In short: both coffee and tea can be part of a heart-healthy diet. Just avoid unfiltered coffee, which raises cholesterol. For tea, benefits increase around 5–6 cups per day. Your best bet? Choose based on taste—and filter your coffee.

The Long Debate: Is Coffee Bad for Your Heart?

Since the 1600s, coffee has had a bad reputation—from claims it caused impotence and paralysis, to modern worries about heart disease. But much of that early criticism was unfounded, and modern science paints a far more nuanced picture. Researchers once believed coffee raised blood pressure, harmed cholesterol, and might even trigger heart attacks. The truth? It’s complicated, but far less alarming than you’ve likely heard.

What Coffee Really Does to Your Heart

Here’s what studies show:

• Caffeine and Blood Pressure: For non-habitual drinkers, two cups can raise blood pressure by 2–3 mm Hg. Regular coffee drinkers see no significant change.
• Heart Rate: Coffee causes a temporary rise in heart rate, but not irregular heartbeat.
• Cholesterol: Unfiltered or boiled coffee (like French press or Turkish) contains oils that raise LDL and total cholesterol. Filtered coffee removes these compounds—so drip or pour-over methods are fine.
• Arteries: Some older studies claimed coffee hardened arteries, but newer ones suggest two cups daily may help arteries relax.
• Hypertension: Coffee does not cause chronic high blood pressure. Even people with hypertension can safely drink it.
• Coronary Heart Disease: Large, long-term studies show no increased risk of coronary heart disease among regular coffee or decaf drinkers over 10–20 years.
• Heart Attacks: For those with existing heart disease or risk factors—especially sedentary people not used to caffeine—a morning coffee might slightly raise heart attack risk. This effect is small, varies by genetics, and is mainly a concern for those with additional vulnerabilities. (People who metabolize caffeine slowly may be at slightly higher risk, per a Costa Rican study.)

And What About Tea?

Tea drinkers often have healthier lifestyles overall, which complicates comparisons. But observational studies find both green and black tea can help reduce coronary heart disease risk—with benefits typically appearing at around 5–6 cups per day. Like filtered coffee, tea is not linked to increased heart risks and may offer additional antioxidant protection.

So which is better? There’s no definitive answer. Much depends on your habits and preferences. Both beverages, in sensible amounts and prepared properly, support cardiovascular health.

What to Drink (and Avoid) for Heart Health

To sum up:

• Drink coffee? Choose filtered methods (pour-over, drip, AeroPress) to avoid cholesterol-raising oils.
• Avoid unfiltered coffee (French press, boiled, Turkish) if you’re watching your heart health.
• If you add sugar, opt for low-calorie, low-fat choices.
• Tea? Aim for 5–6 cups daily for the strongest heart benefits—but even a few cups are fine.
• Drink what you enjoy—your long-term habit matters more than any single cup.

Frequently Asked Questions

Does coffee really raise my blood pressure?

If you don’t usually drink coffee, two cups may temporarily raise your blood pressure by 2–3 mm Hg. But for regular coffee drinkers, there’s no significant or lasting impact on blood pressure.

Can coffee cause heart attacks?

For people with existing heart disease or risk factors—especially if they’re not used to caffeine—a single cup of coffee might slightly increase the chance of a heart attack. This risk is very small, influenced by genetics, and mainly applies to sedentary individuals. Most coffee drinkers aren’t at risk.

Is unfiltered coffee bad for cholesterol?

Yes. Unfiltered coffee (like French press, boiled, or Turkish) contains natural oils that can raise both total and LDL cholesterol. Using a filter (as in drip or pour-over brewing) removes these compounds and is safer for cholesterol levels.

How many cups of tea are needed for heart benefits?

Most studies show heart benefits from drinking around 5–6 cups of tea per day, whether green or black. That said, even fewer cups are still safe and may offer some advantages.

Is decaf coffee better for my heart?

No strong evidence shows decaf is safer than regular coffee when it comes to heart health. Both are considered neutral to beneficial for coronary heart disease and hypertension when consumed as part of a normal diet.

Should I worry about coffee if I have high blood pressure?

No. Research shows coffee does not cause chronic high blood pressure, and people with hypertension can continue drinking it without added risk.

Recommended FrontStreet Coffee for Heart-Conscious Coffee Drinkers

For a heart-healthy coffee routine, try FrontStreet Coffee’s washed Yirgacheffe for its bright acidity and citrus notes, or their fruity Ethiopia Humbera with notes of blueberry and jasmine. Both are best brewed using filtered methods like pour-over or drip to avoid cholesterol-raising oils. FrontStreet’s Classic Blend also offers a balanced, smooth profile ideal for everyday drinking. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.