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Green Tea Does Not Lower Cancer Risk, Says FDA
July 2, 2005 Green tea, often promoted as a mean
of lowering cancer risk, does not work, says the Food and Drug
Administration. The FDA reviewed studies involving breast and prostate
cancer but also concluded that existing evidence does not support
qualified health claims for green tea consumption and a reduced risk of
any other type of cancer.
Under the FDA "Consumer Health for Better Nutrition
Initiative," the agency annnounced the results of a review of qualified
health claims that green tea may reduce the risk of certain types of
cancer. Based on a systematic evaluation of the available scientific
data, the FDA intends to consider exercising its enforcement discretion
for the following qualified health claims for breast and prostate
cancer:
"Two studies do not show that drinking green tea
reduces the risk of breast cancer in women, but one weaker, more limited
study suggests that drinking green tea may reduce this risk. Based on
these studies, FDA concludes that it is highly unlikely that green tea
reduces the risk of breast cancer."
The further concluded, "One weak and limited study
does not show that drinking green tea reduces the risk of prostate
cancer, but another weak and limited study suggests that drinking green
tea may reduce this risk. Based on these studies, FDA concludes that it
is highly unlikely that green tea reduces the risk of prostate cancer."
Guidance on qualified health claims for
conventional foods and dietary supplements was issued by the FDA in July
2003. The FDA says it will continue to evaluate new information that
becomes available to determine whether changes in these claims, or in
the decision, are necessary.
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