Published: Wed, July 12, 2017
Medicine | By Daryl Nelson

Coffee may reduce risk of death, new studies find

Coffee may reduce risk of death, new studies find

Funding for the study has been extended by another five years so researchers can look into coffee consumption in relation to specific types of cancer.

In addition, people consuming two to three cups a day reduce their chances of death by 18 percent.

"We can not say drinking coffee will prolong your life, but we see an association", author Veronica W. Setiawan, of USC, said in a statement. "This ... gives us greater confidence that coffee may have beneficial health effects".

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An earlier study found one cup of coffee a day cuts the risk of developing liver cancer.

"This study is the largest of its kind and includes minorities who have very different lifestyles", Setiawan said.

Increased coffee intake also led to fewer chances of dying from some of the leading causes of death in the country, from heart disease and cancer to chronic lower respiratory disease and kidney disease.

Coffee is the world's favourite beverage, with an estimated 2.25 billion cups drunk globally each day.

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Leader of the U.S. study, Dr Veronica Setiawan also told the Daily Mail UK that it is the antioxidants and phenolic compounds that play an important role in cancer prevention.

Furthermore, it is still unclear how coffee acts on the body to improve people's health. More experimental research will be needed in coming years to shed light on the chemical compounds in coffee that are exerting a protective effect.

More than 680,000 people across the globe were studied by scientists in the two pieces of research.

The first study was conducted in Hawaii and Los Angeles, California. The feel-good beans are believed to boost the immune system and reduce inflammation.

Plus, Guallar said, if people load their coffee with cream and sugar, that adds calories and unhealthy fats. According to experts, it is not clear whether the lowered risk of death is due to the coffee itself or some other reasons like healthy behavior of the participants. After studying over 185,000 African-Americans, Native Americans, Hawaiians, Japanese-Americans, Latinos, and whites, the research found that coffee increases longevity across various races. Participants completed questionnaires about diet, lifestyle, and family and personal medical history. Those who drank two or three cups per day saw an even higher 18 percent reduced risk of death. After 16 years, nearly 42,000 had died from a range of conditions including cancer, circulatory diseases, heart failure and stroke. Drinking four or more cups of coffee per day was linked to a higher risk for death from any cause. "So, I guess I should drink more, right?" The remaining 21% had irregular coffee consumption habits.

58,397 participants (31%) died during the course of the study for which the major causes are the cardiovascular disease (36%) and cancer (31%). The scientists analysed the results categorising people's sex, age, tobacco smoking, alcohol drinking and the level of their physical activity.

Coffee drinkers may have healthier livers and better glucose control than non-coffee drinkers, say the researchers.

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