LONDON (Reuters) - People who eat three to four cups of coffee a day are more likely to benefit their health, with less risk of premature death and heart disease than those who do not.

The study, which compared evidence from more than 200 previous studies, found that coffee consumption was associated with a reduced risk of diabetes, liver disease, dementia and certain cancers.
The scientists said three to four glasses a day gave the greatest benefit, except in the case of pregnant women or are more likely to fracture.

Coffee is one of the most common drinks in the world. To better understand its health effects, Robin Paul, a public health specialist at the University of Southampton, UK, led the research team to review 201 observational research studies and 17 clinical trials in different countries Amid different circumstances.

"Coffee seems safe in the usual consumption patterns," the Paul team concluded in a study published in the British medical journal BMG.

The study found that the risk of premature death was lower among those who ate three cups daily.

No more than three cups of coffee per day were associated with damage, but their beneficial effects were less clear.

The study also linked coffee to lower risk of several cancers, including prostate, skin and type 2 diabetes.

The team confirmed that it was not possible to draw definitive conclusions about the causes and effects of their review, because they included a lot of data based on the observation, but they said that the results reached to strengthen reviews and other recent studies on the amounts of coffee that is addressed.