Six cups of java a day is good for prostate?

“Six cups of coffee a day 'can slash prostate cancer risk'

By FIONA MACRAE

Last updated at 5:45 PM on 18th May 2011

Drinking cup after cup of coffee could more than halve the odds of developing a deadly prostate tumor, research suggests.

A 20-year study of almost 50,000 men found those who drank at least six cups a day were 20 per cent less likely to get prostate cancer than those who never touched the stuff.

Strikingly, they were 60 per cent less likely than the non-coffee drinkers to die of the disease. 

Significant: Researchers have discovered that drinking several cups of coffee a day could reduce the chance of getting prostate cancer by 20 per cent

Those who like to restrict their caffeine intake will be glad to know the study found decaffeinated coffee to be just as effective. 

The research is significant because prostate cancer, the most common cancer among British men, affects 37,000 a year and kills more than 10,000.

However, the Harvard University researchers say that non-coffee drinkers shouldn’t change their habits based on this study alone.

Importantly, the link cannot be explained away by the coffee drinkers having healthier lifestyles. In fact, they were more likely to smoke and did less exercise.

Caffeine is credited with a host of health benefits, including cutting the odds of asthma, Alzheimer’s and multiple sclerosis.

But in this case, the researchers believe that other plant chemicals in coffee are behind the benefits.

They think compounds such as anti-oxidants may cut the odds of prostate cancer and reduce the likelihood of deadly tumors by altering levels of sex hormones, regulating blood sugar levels and cutting inflammation.

‘An association between coffee and lower risk of advanced prostate cancer is biologically plausible,’ they reported.

Kathryn Wilson, the study’s lead author, said: ‘If our findings are validated, coffee could represent one modifiable factor that may lower the risk of developing the most harmful form of prostate cancer.’ But British experts said other studies had failed to find that coffee protected against prostate cancer.

Dr Helen Rippon, head of research management at the Prostate Cancer Charity, said: ‘It is important to remember that studying diet is difficult because you are not studying a standardized product – coffee can be prepared in many different ways from many different varieties of bean.

‘That is why it is so important that studies like this are repeated by others, to see if the result stands up in other groups of men.

‘Although this study is a welcome addition to our knowledge, it is far from definitive and we would not recommend men who are not already habitual coffee drinkers to become so in the hope of preventing prostate cancer.’

She pointed out that heavy caffeine intake is associated with other health problems.

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