The health benefits of coffee is a well-researched topic, and the general conclusion is that drinking more coffee is better. Consider these:
- The risk of heart failure or stroke went down 8% for each additional cup of coffee per day in a study by the American Heart Association and the University of Colorado School of Medicine.
- Habitual coffee drinkers were 10-15% less likely to die during any 10 year period than non-coffee drinkers in a British study of 498,123 people.
- Coffee drinkers tended to live longer than non-coffee drinkers according to a Stanford University study that tracked 100 people over several years.
- There was a 64% lower risk of dying among study participants drinking 4 cups per day compared to non-coffee drinkers in a Spanish study.
Is there a limit to the benefits? If four cups of coffee per day is beneficial is there an upper limit, a point where the benefits cease? Yes.
A recent study of almost 350,000 people published in the March 2019 edition of The American Journal of Clinical Nutrition found that six cups per day is the tipping point. High blood pressure is a known consequence of excess caffeine consumption. Beyond six cups per day the risk of heart disease increases by 22% according to the study.