How Many Cups of Coffee Are Safe for the Cardiovascular System?

A large-scale study has shown that up to five cups of black coffee per day (about 400 mg of caffeine) are safe for the heart. Scientists emphasize the importance of a pure composition without sugar and cream. Regular consumption is associated with a reduced risk of diabetes, cardiovascular diseases, strokes, and heart failure. However, the reaction to caffeine is individual and depends on genetics, age, and health. Energy drinks pose a greater threat due to their high caffeine concentration.

A new scientific study, reported by Martha Stewart, has proven that moderate coffee consumption is safe for the cardiovascular system. Scientists have established that healthy adults can safely drink up to five standard cups of black coffee, about 240 ml each, per day, equivalent to approximately 400 mg of caffeine. The key condition is that the coffee must be high-quality, black, without sugar, fatty cream, syrups, or other caloric additives that negate the benefits. Regular consumption of pure black coffee is statistically associated with a reduced risk of type 2 diabetes, cardiovascular diseases, strokes, heart failure, and certain types of heart rhythm disorders. Professor of Medicine at the University of California, San Francisco, Dr. Gregory Marcus emphasizes that the reaction to caffeine is individual and depends on age, health, medications, genetics, and metabolism. Separately, researchers warn about the danger of energy drinks, which contain 3-4 times more caffeine per unit volume and more often lead to adverse heart effects.