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- $Unique_ID{BRK01973}
- $Pretitle{}
- $Title{Benefits of Green Tea Against Cancer}
- $Subject{benefit Benefits Green Tea teas Cancer cancers cancerous stomach
- tannin Camellia sinensis chemical chemicals phytochemical phytochemicals Black
- Oolong plant plants Epigallocatechin gallate EGCG antioxidant antioxidant
- caffeine coffee coffees}
- $Volume{}
- $Log{
- Anatomy of the Stomach-Esophagus*0008702.scf}
-
- Copyright (c) 1993 Tribune Media Services, Inc.
-
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- Benefits of Green Tea Against Cancer
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- QUESTION: I have been given to understand that the population of Japan has a
- far smaller number of cases of stomach cancer than we do in the United States.
- I also understand that this is the result of the tannin in the green tea they
- drink. Can you offer me an in depth explanation of this if you know anything
- about it? I would like to know if I should add green tea to my menu. Thank
- you.
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-
- ANSWER: Green tea is one of three different types of tea produced from the
- leaves of the Camellia sinensis. These leaves contain a large number of plant
- chemicals or phytochemicals, and these may change depending upon the process
- used in the preparation of the tea. Both Black tea and Oolong tea can be
- produced as well as Green tea. Green tea is prepared in a manner that
- conserves the polyphenols that are present in the leaf. It is these
- polyphenols, often mistakenly called tannins, that are suspected of being the
- plant chemical responsible for the lowered incidence of cancer, particularly
- stomach cancer in recent surveys of the Japanese population.
- The polyphenols in Green tea account for about 15-30 percent of the
- weight of the leaf. About half of this is chemical known as Epigallocatechin
- gallate (EGCG), the most biologically active of the polyphenols in Green tea.
- It is this compound that has attracted the interest of research scientists
- seeking to understand the relationship between Green tea and the low cancer
- rates. It may act as an antioxidant, but other possibilities are also being
- investigated.
- A cup of brewed green tea (4 ounces) contains about 60-125 mg of
- polyphenols, about half of which is EGCG. You may also be interested in the
- fact that the same cup of tea would contain 35-50 mg of caffeine, compared to
- the 75-95 mg contained in a cup of coffee.
- Before you make the decision that Green tea is the answer to your
- prevention strategy, be aware that in the Japanese population that was
- studied, the average daily consumption of Green tea was between 10-20 cups a
- day (4 ounces), and it may be that the protective effect requires this amount
- of tea intake.
-
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-
- The material contained here is "FOR INFORMATION ONLY" and should not replace
- the counsel and advice of your personal physician. Promptly consulting your
- doctor is the best path to a quick and successful resolution of any medical
- problem.
-