NEW YORK, Sept 18: A recent study suggests that a morning cup of coffee might offer more health benefits than just a quick boost. The research, led by Dr. Chaofu Ke, an associate professor of epidemiology and biostatistics at Soochow University in Suzhou, China, finds that moderate caffeine intake—about three cups of coffee or tea a day—could reduce the risk of developing cardiometabolic multimorbidity (CM).

CM, characterized by the coexistence of at least two cardiometabolic conditions such as coronary heart disease, stroke, and type 2 diabetes, may be mitigated by regular caffeine consumption, according to the study. Dr. Ke noted that “coffee and caffeine consumption may play an important protective role in almost all phases of CM development.”

The study analyzed data from approximately 180,000 participants in the UK Biobank, a comprehensive biomedical database tracking individuals over time. Participants initially free from cardiometabolic diseases provided self-reported information on their caffeine intake from coffee and tea. Researchers then cross-referenced this data with medical records and death certificates to assess disease incidence.

Results indicated a significant reduction in the risk of new-onset cardiometabolic multimorbidity among moderate caffeine consumers. Specifically, those who drank three cups of coffee daily saw a 48.1% reduced risk, while those consuming 200 to 300 milligrams of caffeine per day experienced a 40.7% reduction in risk, compared to individuals who drank less than one cup or none at all.

Dr. Gregory Marcus, associate chief of cardiology for research at the University of California, San Francisco, praised the study's robust sample size and methodology. He noted, “These observations add to the growing body of evidence that caffeine, and commonly consumed natural substances like tea and coffee, may enhance cardiovascular health.” However, Marcus emphasized that while the study suggests a link between caffeine consumption and improved heart health, it remains observational.

Marcus cautioned against drawing definitive causal conclusions, noting that other unmeasured factors could influence the observed benefits. For instance, individuals who consume caffeine might also engage in healthier lifestyle practices such as a balanced diet and regular exercise.

The study did not consider the effects of caffeine from carbonated beverages or energy drinks, leaving open questions about whether these sources of caffeine would have similar benefits. Dr. Ke also acknowledged this limitation.

While existing literature supports the potential benefits of caffeine, Marcus advised caution before adopting a new caffeine routine. He highlighted that “more is not necessarily better” and warned that excessive caffeine, particularly from energy drinks, could pose risks such as harmful heart rhythm disturbances.

Overall, while the study offers promising insights for those who already enjoy coffee or tea, it is not an endorsement to start a caffeine regimen, especially given the potential risks of high-dose caffeine consumption.