People who drink three or four cups of coffee a day are more likely to have a health benefit than a problem, according to a new scientific study. Coffees, among other things, are associated with a reduced risk of heart disease and premature death from any cause.
The researchers, led by Robin Poole of the University of Southampton, published the study in the British Medical Journal, according to Reuters and the BBC, and evaluated data from 218 studies (meta-analysis).
New study shows that coffee consumption is also associated with a reduced risk of type 2 diabetes, liver disease, dementia and certain cancers (prostate, endometrial, skin, liver).
Consuming three coffees a day seems to provide the greatest benefit. Higher consumption is not associated with harm to health, but the benefits are smaller.
The researchers pointed out that the study shows a correlation between coffee and health and does not prove that this is the cause, as other factors may play a role (physical exercise, smoking, age, etc.).
Experts stress that there is no reason to start drinking coffee for health or disease prevention reasons. However, as Professor Paul Roderick of the University of Southampton put it, "the benefits of moderate coffee consumption outweigh the risks."
Moderate consumption is considered to be 440 milligrams of caffeine, which corresponds to three to four coffees. An instant coffee has about 100 mg of caffeine, a filter coffee of 140 mg, and a tea of 75 milligrams.
New research confirms that too much coffee (more than two a day) can harm pregnancy, increasing the risk of miscarriage. Also, women who are at risk for fractures should limit their coffee.
The researchers stressed that coffee is generally healthier when drunk without added sugar, milk or cream or a fatty snack as an accompaniment.