The kettle clicks off, and you reach for the French press you were given last Christmas. It makes a rich, heavy cup that tastes like a café. Your heart may do slightly better with the plain drip machine sitting beside it.
Key Takeaways
- Board-certified cardiologist Dr. Abid Husain’s advice is to drink coffee black or with a small splash of unsweetened milk, skip sugary syrups and creamers, and cut off caffeine early enough to protect your sleep. The research largely backs him up.
- The one tweak concerns brewing. Large studies link paper-filtered coffee (drip or pour-over), 1 to 4 cups a day, to the lowest heart risk. Unfiltered methods such as French press, boiled coffee and, to a lesser degree, espresso keep natural oils that raise cholesterol.
- A teaspoon of sugar doesn’t appear to wipe out coffee’s benefits. Large, syrupy specialty drinks are a different matter.
- Morning coffee drinkers showed the heart benefit, while all-day sippers did not.
- If your blood pressure runs 160/100 or higher, two or more cups a day was linked to double the risk of dying from heart disease. Talk to your doctor about how much is right for you.
What the cardiologist recommends
Dr. Husain, a board-certified cardiologist based in Colorado, keeps his own coffee black. For people who want something added, he suggests a small amount of unsweetened milk, cream or plant-based milk. If you need sweetness, he suggests a little honey or maple syrup rather than sugary syrups, sweetened creamers or whipped cream.
His reasoning is that coffee itself is rich in beneficial plant compounds, including chlorogenic acids and other antioxidants that may support blood sugar control and blood vessel health. Heavy add-ins bring blood sugar spikes and extra calories that can cancel out those benefits.
He also advises against caffeine in the afternoon if it disrupts your sleep. Poor sleep affects blood pressure, blood sugar, appetite and stress hormones, all of which matter for the heart.
For brewing, he favors espresso and pour-over. The research strongly supports pour-over. Espresso is where the evidence adds a caveat.
The tweak: filter it
The biggest piece of evidence on brewing comes from Norway. Researchers followed 508,747 adults aged 20 to 79 for about two decades. Their findings were published in the European Journal of Preventive Cardiology in April 2020. People who drank filtered coffee were 15% less likely to die from any cause during the study than people who drank no coffee. Their risk of dying from heart disease was 12% lower for men and 20% lower for women. The sweet spot was 1 to 4 cups a day. Unfiltered coffee didn’t show the same advantage, and the extra heart risk was most noticeable in men aged 60 and older.
The reason is a pair of natural oils in coffee beans called cafestol and kahweol, which raise blood cholesterol. When you brew through a paper filter, most of these oils stay behind in the paper. When you press, boil or steep the grounds, they end up in your cup. An unfiltered cup can carry roughly 30 times more of these compounds than a filtered one.
Espresso falls in between. It’s forced through a fine metal screen rather than paper, so some oils get through. In the Tromsø Study, a large Norwegian population study of adults over 40 published in Open Heart in May 2022, men who drank 3 to 5 espressos a day had total cholesterol about 0.16 mmol/L (roughly 6 mg/dL) higher than non-drinkers. For women, the difference was 0.09 mmol/L. French press and boiled coffee raised it more: 0.22 mmol/L in men and 0.18 in women. Filtered coffee barely moved the numbers.
Those increases are modest for any one person. But if your LDL (“bad”) cholesterol is already high, or you’re working to bring it down, making paper-filtered coffee your daily habit is an easy win. Espresso and French press can become an occasional treat.
What the research says about sugar and timing
Sugar: A 2022 study of more than 171,000 UK adults, published in Annals of Internal Medicine, tracked people for seven years. Moderate coffee drinkers (about 1.5 to 3.5 cups a day) had a lower death risk whether they drank it unsweetened or with about a teaspoon of sugar per cup. An editorial published alongside the study pointed out that this doesn’t apply to café drinks with several times that amount of sugar, which fits Dr. Husain’s advice to skip the syrups.
Timing: A study of 40,725 American adults, published in the European Heart Journal in January 2025, backs up his advice about timing. People who drank their coffee mainly in the morning had a 31% lower risk of dying from heart disease than non-drinkers. People who drank coffee throughout the day saw no such benefit.
Who should be more careful
All of these studies are observational. They show links, not proof that coffee itself causes the benefit, and coffee drinkers may differ from non-drinkers in other ways.
The most important caution is for people with severe high blood pressure. A Japanese study of more than 18,600 adults, followed for nearly 19 years and published in the Journal of the American Heart Association in December 2022, looked at people with blood pressure of 160/100 mm Hg or higher. Among them, drinking two or more cups of coffee a day was linked to twice the risk of dying from heart disease compared with non-drinkers. One cup a day showed no added risk.
For most healthy adults, up to 400 mg of caffeine a day, about four cups of brewed coffee, is considered safe. More than that can bring on a racing heartbeat, jitters and insomnia. If coffee makes your heart flutter or pound, bring it up with your doctor.
The bottom line
Take the cardiologist’s advice: drink it black or lightly dressed, skip the syrups, and keep your coffee to the morning, especially if it affects your sleep. Then add the research tweak: make your everyday cup paper-filtered, and save espresso and French press for occasional treats, especially if cholesterol is a concern.
This isn’t a substitute for medical advice. Talk to your doctor about what’s right for you.