Increased coffee consumption could significantly lower a person’s risk of mortality, according to two new studies published Monday in the Annals of Internal Medicine.
One study surveyed over 520,000 people in 10 European countries in the largest ever study on coffee and mortality. It showed an inverse link between coffee and liver disease, suicide in men, cancer in women, digestive diseases and circulatory diseases. People who drank at least three cups a day had a lower risk for all causes of death than those who were not coffee drinkers.
“We looked at multiple countries across Europe, where the way the population drinks coffee and prepares coffee is quite different,” according to Marc Gunter, reader in cancer epidemiology and prevention at Imperial College’s School of Public Health in the UK and study co-author.
The second study focused specifically on non-white populations, surveying more than 185,000 African-Americans, Native Americans, Hawaiians, Japanese-Americans, Latinos and whites. The data proved that coffee increases longevity across a wide range of races.
The findings show that there is a stronger biological possibility for the link between coffee and longevity. Also, mortality was inversely related to coffee consumption for heart disease, cancer, respiratory disease, stroke, diabetes and kidney disease.
People who drank two to four cups of coffee each day had an 18 percent lower risk of death than people who did not drink coffee, the study reveals. The findings are comparable with data that focused primarily on white populations, according to Veronica Wendy Setiawan, associate professor of preventative medicine at USC’s Keck School of Medicine and study leader.
“Given these very diverse populations, all these people have different lifestyles. They have very different dietary habits and different susceptibilities — and we still find similar patterns,” Setiawan said.
She believes that studies from now and the past prove that for most people, there are no long-term risks associated with drinking coffee.
“Moderate coffee consumption can be incorporated into a healthy diet and lifestyle,” Setiawan said. “These studies and the previous studies suggest that for a majority of people, there’s no long-term harm from drinking coffee.”