Green Tea vs. Three Common Cancers
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Posted On :
Sep-07-2011
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Article Word Count :
435
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Here in part two of my examination of green tea, I'll look at the evidence for its use against gastrointestinal cancers and breast cancer. In each case, the
news is good.
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Here in part two of my examination of green tea, I'll look at
the evidence for its use against gastrointestinal cancers and
breast cancer. In each case, the news is good.
Gastrointestinal Cancers
A large population study from China involved 931 colon,
884 rectum and 451 pancreatic cancer patients. Compared
to about 1,550 healthy patients, it found that consuming
green tea was linked with a lower risk of these tumors.
This
was stronger among women than men. Another study
involved 185 esophagus, 893 stomach, 362 colon and 266
rectal cancer patients, compared against more than 21,000
healthy people. It proved that the risk of stomach cancer
was lower among green tea drinkers. The best protection
was in seven cups a day.
A recent review of world literature -- with 25 studies in 11
countries -- had three main conclusions:
1. Green tea reduced the risk of colorectal cancer by 18%;
2. Black tea showed some protective effect in women, but
may promote colorectal cancer in men; and
3. More clinical studies are needed to confirm the above
findings.
Breast Cancer
Several large population studies show that green tea could
reduce the risk of breast cancer. One, in Los Angeles,
showed that the risk of breast cancer was lowest in green
tea drinkers, intermediate in green and black tea drinkers,
and unchanged in black tea drinkers.
Another, from Japan, tested 472 breast cancer patients
whose diseases were in stages I, II or III in terms of
severity. They drank between two and eight cups of green
tea a day. Among those in the first two stages, eight cups a
day meant a lower cancer recurrence rate and a longer
disease-free period (compared to two cups).
Another big review looked at 13 old studies from eight
countries. It concluded that green tea is linked with a lower
risk of breast cancer, while black tea may in fact promote
such cancer.
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Article Source :
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Keywords :
cancer, green tea, breast cancer, gastrointestinal cancer,
Category :
Health and Fitness
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Health and Fitness
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