Good news for coffee lovers, your daily cup may help your heart

Coffee drinkers can finally put one common worry to rest. According to new research, your daily coffee habit likely is not damaging your heart, and in some cases, it might even be doing it a favour.

Coffee drinkers can finally put one common worry to rest. According to new research, your daily coffee habit likely is not damaging your heart, and in some cases, it might even be doing it a favour.

The American Heart Association recently released a new scientific statement titled “Caffeine and Cardiovascular Disease”, published in the journal Circulation on 20 July 2026. After reviewing the latest research on how caffeine affects strokes, coronary artery disease, and irregular heartbeats, the writing group concluded that consuming up to 400 milligrams of caffeine daily, roughly the equivalent of five 8-ounce cups of coffee, is safe for most adults and may even lower cardiovascular risk in certain situations.

Gregory Marcus, who chaired the writing group and serves as a professor of medicine at the University of California, San Francisco, said that most people who regularly drink caffeinated coffee or tea can feel reassured. According to him, these beverages are unlikely to raise cardiovascular risk and may actually offer some health benefits instead.

The research also found some nuance around blood pressure. Drinking one to three cups a day may cause a slight rise in blood pressure for those who already have healthy levels, while consuming more than that appears to have the opposite effect, lowering it instead.

Interestingly, not all coffee compounds are equally beneficial. A substance found in unfiltered coffee, known as cafestol, has been linked to higher LDL cholesterol levels. Some of coffee’s protective effects against conditions like type 2 diabetes may also come from other compounds in the drink rather than caffeine alone.

Marcus noted that the strongest evidence of benefit is seen in relation to type 2 diabetes, atrial fibrillation, heart attack, and stroke, although caffeine has also been associated with a slight increase in premature ventricular contractions, a type of irregular heartbeat.

The real concern arises once caffeine intake exceeds that 400-milligram threshold, something that becomes far easier to do with energy drinks and caffeine shots compared to regular coffee. In fact, two caffeine-related heart disease deaths in the United States between 2022 and 2023 were linked to Panera Bread’s highly caffeinated Charged Lemonade, a product the company eventually discontinued.

Marcus explained that energy drinks have not been studied as extensively as naturally occurring caffeine sources like coffee, but the available evidence suggests they are more likely to cause harm than good.