People who drink two to three cups of coffee a day are more likely to live longer and have less cardiovascular disease than those who don't.
Scientists are interested in investigating the association between drinking more coffee and a longer life. A daily habit of six or more cups of coffee may increase the risk of dementia.
"Ground, instant and decaffeinated coffee were associated with equivalent reductions in the incidence of cardiovascular disease and death from cardiovascular disease or any cause," said Peter Kistler from the Baker Heart and Diabetes Institute.
Mild to moderate intake of ground, instant and decaffeinated coffee should be part of a healthy lifestyle.
The UK Biobank contains records on people's genetics, health, and lifestyles. The sample gave an average of 12 and a half years' worth of health and diet information to over four hundred thousand people.
Over 100,000 people said they didn't drink coffee at all because they were grouped according to their daily coffee consumption. The researchers took into account the effects of age, sex, ethnicity, Obesity, high blood pressure, diabetes, smoking status, and tea and alcohol consumption.
The differences in heart health outcomes and death from any cause for all coffee drinkers were calculated by Kistler and colleagues.
Coffee drinkers who drink instant, ground and decaffeinated coffee have a lower chance of dying. Those who drank two or three cups of coffee a day were more likely to live longer than those who did not.
Researchers can't guess what's going on. A wide variety of potential compounds could be involved.
Coffee contains more than 100 biologically active components, but it is the most well-known component.
The relationship between coffee drinking, cardiovascular disease and survival was likely caused by the non-caffeinated compounds.
Those who drank two to three cups of coffee a day had the lowest risk of developing cardiovascular disease.
Ground and instant coffee, but not decaffeinated, were linked to a lower risk of arrhythmia. Just a few cups each day seemed to be the sweetest spot.
Coffee is a complex substance that interacts with the body in a number of different ways. The link between coffee drinking and longevity is only made stronger by the fact that this study covered many people.
There are some limitations that need to be considered. The database records were mostly white, making it hard to generalize. Coffee drinking was self- reported and the database doesn't factor in changes in coffee consumption over time.
It's possible that the morning brew is doing you some good.
Kistler says that small amounts of coffee of all types can be enjoyed as a heart healthy behavior.
The research was published in a journal.
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