Cardiovascular health and coffee: Insights from a recent cohort study

Coffee consumption has long been a subject of debate in cardiovascular health, with concerns over its potential pro-arrhythmic effects and transient increases in blood pressure. The recent study by Zhou et al. provides compelling evidence that moderate coffee intake (1–3 cups per day) is associated with reduced all-cause and cardiovascular mortality, particularly among individuals with pre-existing cardiovascular and cerebrovascular diseases. This commentary expands on the study's findings, highlighting potential mechanisms of protection, including anti-inflammatory and antioxidant effects, as well as its impact on endothelial function and metabolism. Additionally, it underscores key knowledge gaps, such as the influence of brewing methods, genetic variability in caffeine metabolism, and sex differences in cardiovascular responses to coffee consumption. While habitual coffee intake appears safe and potentially beneficial for most individuals, further research is needed to refine personalized recommendations based on genetic, hormonal, and metabolic differences. Given coffee's widespread consumption, incorporating these insights into clinical guidelines and public health recommendations could have significant implications for disease prevention and management.