Research says drinking coffee helps prevent liver cancer
Photo source: Hot water is poured into a glass of ground Ethiopian coffee. (Bloomberg)
A survey of Singaporean Chinese found that drinking three or more cups of coffee a day reduced the risk of liver cancer by 44%.
Researchers from the Department of Epidemiology at the National University of Singapore suggested that two kinds of oil caffeine and caffeinol found in coffee beans have hepatoprotective effects.
There are more and more signs that the idea that coffee is bad for health is wrong. The study, which began in 1993, provides the latest evidence. The study involved more than 63000 Chinese Singaporeans between the ages of 45 and 74 who are thought to have a higher risk of developing liver cancer.
Associate Professor Xu Yunpei, who participated in the study, recently wrote in the US Journal of Cancer cause and Control that the findings mean that coffee drinkers can reduce their worry about liver cancer.
The magazine quoted Xu Yunpei as saying: "Tea often gets a very positive description, while coffee often has to struggle with a bad image."
However, her team's study of green tea found that green tea had no effect on preventing liver cancer.
A 2008 study also found that drinking four or more cups of coffee a day may reduce the risk of diabetes by 30%.
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People who drink a lot of coffee have a lower risk of prostate cancer
Compared with non-drinkers, people who drank six or more cups of coffee a day had a nearly 20% lower risk of prostate cancer over the past 20 years, the researchers found. Scientists at Harvard University followed 47911 men who regularly reported their coffee consumption. More importantly, compared with non-coffee drinkers, people who drink a lot of coffee suffer from fatal prostate disease.
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Women drinking coffee can reduce the risk of depression
Researchers at the Harvard School of Public Health surveyed more than 50,000 women between the ages of 50 and 70 and how much coffee they drank every day. Women who drank 2 to 3 cups of caffeinated coffee a day reduced their risk of depression by 15%; if they drank more than 4 cups of coffee a day, they were 20% less likely to become depressed. Dr. Karestan Koenen, Mailman School of Public Health, Columbia University
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