Saturday, May 05, 2007

GREEN TEA,TOO MUCH OF A GOOD THING?

For those of you who believe in good nutrition and nutraceuticles(me) for optimal health, I recently came across an article from (Chemical Research in Toxicology, vol 20, p 583) which I would like to share with you knowing that it might apply to many. This information also appeared in Science Daily.

Green tea is good for you, but only if drunk in moderation. While the polyphenols in green tea are credited with preventing heart disease and cancer, it seems they can cause liver and kidney damage if consumed in very large quantities, a review of studies into the toxicity of polyphenols has shown.
"People shouldn't be too alarmed by this, but those taking supplements may experience problems," says lead author Chung Yang of Rutgers, the State University of New Jersey.
He stresses that up to 10 small cups of green tea a day is fine. Problems are likely in people who take supplements, which can contain up to 50 times as much polyphenol as a single cup of tea.
Yang's review cites experiments in which rodents and dogs died from liver poisoning when given very large doses of polyphenols. He also reports cases of people with liver toxicity after overdosing on green-tea-based supplements. Their symptoms disappeared when they stopped taking the pills, only to return when they started taking them again.

2 comments:

Anonymous said...

Thanks for your astute sharing of information - I'm quite new to the joys of blogs and all this wide wide world has to offer - your blog is really interesting, compeling, enlightening and right-on target! And off-center. Very nice. Keep up the good work and thanks.

sara

Green Tea said...

Nice post, thanks for sharing this wonderful and useful information with us.

Green Tea Weight Loss

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New York, New York, United States
I do not give up my Autonomy,especially to the Medical Profession. Passionate, Creative, Able to see Beauty within Simplicity, I Am Not A Diabetic, rather I have Diabetes (there is a big difference between the two on many levels).Type 1 Diabetes since 5 years of age. Belief in G-D