American Heart Association (AHA) defines safe and beneficial daily coffee consumption levels

For decades, coffee was often viewed by the medical community as a beverage carrying cardiovascular risks due to its temporary effects on heart rate and blood pressure. However, a recent scientific statement from the American Heart Association (AHA), published in the journal Circulation, provides a more objective perspective. Synthesized data suggests that moderate coffee consumption is not only safe but also offers unexpected health benefits for adults.

Specifically, the AHA identifies the safe caffeine consumption threshold for most adults as a maximum of 400 mg per day, equivalent to about five 240 ml standard cups of coffee. This level not only avoids increasing cardiovascular disease risk but is also directly linked to a reduction in the risk of heart failure, stroke, and all-cause early mortality. Experts suggest that individuals consuming 2-4 cups daily often achieve optimal health protection.

However, cardiologists emphasize that these benefits stem exclusively from black coffee or coffee brewed through paper filters. Adding excessive sugar, cream, or syrups turns the beverage into a high-calorie treat, canceling out its cardiovascular benefits. Furthermore, brewing methods are critical; non-filtered coffee, such as French press or Turkish coffee, contains high levels of cafestol, a compound that can elevate blood LDL cholesterol if consumed frequently.

The AHA also issues a strict warning regarding the difference between coffee and energy drinks. Energy drinks deliver massive amounts of caffeine in a short period, combined with other stimulants, which can lead to sudden blood pressure spikes and arrhythmias. For patients with atrial fibrillation, results from the DECAF trial indicate that maintaining a consumption of at least one cup of coffee per day does not increase adverse events and may even reduce the risk of recurrence by 39% compared to total abstinence.

Scientists note that there is no one-size-fits-all formula, as responses to caffeine depend on age, genetics, and underlying conditions. A study of over 18,000 individuals in Japan warns that patients with severe hypertension (160/100 mmHg or higher) who consume two or more cups of coffee daily face double the risk of cardiovascular death. Individuals with complex medical histories, insomnia, or palpitations should consult a physician to determine their appropriate consumption levels.