New findings indicate that drinking up to five cups of coffee daily could be safe for most adults and might lower the risk of cardiovascular diseases. The American Heart Association issued a scientific statement saying that up to 400 milligrams of caffeine a day, the equivalent of about five eight-ounce cups, is generally safe for most individuals.

The statement highlights that regular consumption of caffeinated coffee, without adding sugar, flavors, or cream, may be associated with reduced risks of Type 2 diabetes, heart disease, stroke, heart failure, and some irregular heart rhythms.

“Experimental studies suggest that the bioactive compounds in coffee may have antioxidant and anti-inflammatory properties, which may help explain some health benefits,” the statement noted.

The researchers advised caution, noting that studying caffeine’s effects on the cardiovascular system poses challenges. They suggested that the health benefits linked to coffee consumption might be attributed to elements in coffee other than caffeine. Despite promising observations, most studies on caffeine remain observational and do not establish direct cause and effect.

The statement also emphasized the need for further research on coffee and other caffeine-containing products. It pointed out that higher caffeine levels, such as those in energy drinks, were tied to potential cardiovascular harm.