Coffee reduces risk of death from some diseases, Harvard study finds
People who drink three to five cups of coffee per day are less likely to die prematurely from heart disease, suicide, diabetes or Parkinson's disease, according to research.
Both caffeinated and decaffeinated coffee were shown to have benefits, said the study by researchers at the Harvard University Chan School of Public Health published in the latest edition of the journal Circulation.
The study compared people who did not drink coffee, or drank less than two cups daily, to those who reported drinking "moderate" amounts of coffee, or up to five cups daily.
The study did not prove a cause-and-effect for coffee and the reduced likelihood of certain diseases, but uncovered an apparent link that aligns with previous research, and that scientists would like to probe further.
"Bioactive compounds in coffee reduce insulin resistance and systematic inflammation," said first author Ming Ding, a doctoral student in the Department of Nutrition.
"That could explain some of our findings. However, more studies are needed to investigate the biological mechanisms producing these effects."
No protective effect was found against cancer in this study.
Some previous research has pointed to a link between coffee consumption and a lower risk of certain cancers.
The study was based on data gathered from three large, ongoing surveys including some 300,000 nurses and other health professionals who agree to answer questionnaires about their own medical conditions and habits at regular intervals over the course of 30 years.
"In the whole study population, moderate coffee consumption was associated w Continue reading