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July 20 2007
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Is Tea a Powerful Health Tonic?

There are hundreds, perhaps thousands, of scientific papers researching tea, but the results are often split. While one study might find that tea boosts immune function, another often shows no effect. The research is hampered by the fact that most of the studies have examined effects on animals, and little research has been done on the differences between various types of tea.

Nonetheless, a growing number of studies have suggested potential health benefits from tea, and this has attracted a great deal of interest. Research has indicated that tea could have beneficial effects including:

  • Improved mental alertness
  • Lower blood cholesterol and triglyceride levels
  • Reduced blood pressure
  • Lower risk of ***, colon, lung, ovarian and prostate cancer, and
  • Protection again Type 2 diabetes

In 2006, a Japanese company petitioned the FDA for permission to label green tea as offering protection against heart disease. The agency denied the request, saying that the research on the subject was "supportive but not conclusive."

One component of tea, epigallocatechin gallate (EGCG), could help prevent psoriasis, prostate cancer and colon tumors. It is now being used as an ingredient in health foods, beverages and dietary supplements.

The Washington Post July 17, 2007



Dr. Mercola Dr. Mercola's Comments:

2.25 billion gallons of tea -- about 132 cups of tea per person per year -- is consumed in the United States. However, people in China, Japan and other parts of Asia often drink multiple cups per day.

There is some pretty compelling evidence that the polyphenols in green tea are more effective at fighting the progression of cancer than the antioxidants found in red wine, grapes and peanuts. In addition, the EGCG (epigallocatechin gallate) in tea could be another useful cancer-prevention tool.

But the health benefits of tea are still ripe for discussion, with some studies showing positive results and others finding no effect. Even studies yielding positive results seem to show that you may actually need five to 10 cups per day in order to reap these benefits -- and it's also not yet clear whether or not decaf varieties work as well.

Since tea contains about half the caffeine found in coffee, it can really add up. Caffeine comes with its own set of problems, including its ability to worsen insulin sensitivity, which is a major cause of chronic illness.

As a general rule I don't recommend drinking anything but pure water. But if you're partial to tea, drink it in moderation, especially as some teas also contain high levels of fluoride.  Additionaly, be sure to avoid fake “health” drinks, such as Coca-Cola’s Enviga, which contains a trace amount of EGCG swimming in an ocean of processed junk.

So you might consider adding a high quality green tea to your regimen. Like most products you have to be careful in selecting the right one. You need to make sure that is low in fluoride and not oxidized. I am currently in the process of researching a number of companies so I can provide a recommendation for you in the near future.

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Community Comments ( 53 )
Comment on this Article
  
  
Bridestein
[ Joined on 12/06 ] [ Posted on July 19, 2007 ]
19 Points        
   
 
Savvy User
The guy who drinks tea even though he hates it, needs to stop. His body is giving him a very strong message which he is choosing to ignore to his own peril.
I have done the most harm by forcing myself to consume things in the name of 'health' that my body clearly rejected. Two strong clues are gagging and the inability to remember to take whatever it is, despite your best intentions. I usually feel resistant when it's a bad idea.
Listen to your body - it talks to you all the time!

 [ Reply ]
Mercola
  
treevalenzua
[ Joined on 02/07 ]  [ Posted on August 7, 2007]
3 Points        
   
Novice User
  Mercola

As a Chinese Herbalist, I have "forced" myself to drink quite a few awful tasting concoctions in the form of a thick dark tea that I prepared myself from dried herbs.  Although the taste is horrible...sometimes to the point of gagging...I found that by the second day, my body was craving the tea regardless of the taste.  

I could easily gulp down the bitter drink and see my health improving every day.

Mercola
  
drphildc
[ Joined on 06/06 ]  [ Posted on August 8, 2007]
1 Points        
   
Novice User
  Mercola

I agree that we all can benefit from listening to our bodies more closely. I would add though, that most people are ok with sweet and salt tastes; and have a measure distaste for other flavors like spicey, bitter and pungent. When expanding ones food choices, it can take some time for foods with these other tastes to become palatable. I think there are many nutritious and beneficial foods that may not at first get an "mmm mmm good" response, but are worth trying several more times before being abandoned as disharmonious.

  
  
ChiroTom5
[ Joined on 03/07 ] [ Posted on July 19, 2007 ]
12 Points        
   
 
Savvy User
But what about people who hate vegetables?  Is it ok for them to only eat other, less healthy food just because they don't like veggies?  If he hates the tea so much, he should try adding raw honey to it.  That stuff makes everything yummy!
 [ Reply ]
Mercola
  
Bridestein
[ Joined on 12/06 ]  [ Posted on July 19, 2007]
6 Points        
   
Savvy User
  Mercola
Who said anything about eating other less healthy foods?
Also there is a difference between emotionally disliking foods and having your body sending you messages not to eat them.
And in fact some people do not do well with lots of vegetables depending on their genetics. Like Eskimos for instance.
Mercola
  
ChiroTom5
[ Joined on 03/07 ]  [ Posted on July 21, 2007]
21 Points        
   
Savvy User
  Mercola
Well, first of all...I don't think that anything that I said warrented a 2 point deduction.  I was just asking a simple honest question.  I was pointing that out because I have a friend who absolutely loathes veggies, but she loves Taco Bell, which she eats all the time.  Are you telling me that since she likes the Taco Bell, that it's good for her and that her body accepts it but not veggies?  All that trans fat and saturated animal fat and countless chemical additives are better for her body than veggies?  That sounds a bit silly to me.  Or what about the case with Chlorella and Spirulina.  They are being hyped by many experts as two of the healthiest foods to consume.  I'd be willing to bet that nobody likes how they taste.  Does that mean that nobody should be consuming them and that the experts are wrong?  Finally, how could you possibly know whether this man's body is rejecting the tea or if he's just emotionally disliking it?  I don't think that taste is a good indicator of the body rejecting something.  If it made him sick, put him into anaphylaxis, or killed him, then I'd say that his body is rejecting it.  There are so many things out there that taste terrible but have wonderful benefits to your body.  I'm sorry if I'm coming off a bit hostile, but I just can't imagine why I would have lost 2 points for what I said.  That dropped me from savvy to apprentice.  There's no perks for apprentice!
Mercola
  
helpingheart
[ Joined on 06/06 ]  [ Posted on July 21, 2007]
4 Points        
   
Savvy User
  Mercola
Chiro Tom - good post.....I gave you points on both....a suggestion - just leave out the word 'hate' next time....most likely the word rubs the wrong way.  'Dislike' maybe a better term to use.  Keep up the good posts!  : )
  
  
helpingheart
[ Joined on 06/06 ] [ Posted on July 19, 2007 ]
10 Points        
   
 
Savvy User
Recently I found out about organic traditional Yerba Mate leaves tea - the benefits are 24 vitamins/minerals, 15 amino acids, abundant antioxidants and naturally occurring caffeine - I feel this tea gives me energy and a positive frame of mind to go about my day - health food type stores usually carry this tea, and the original brand is Guayaki.  Cheers! - To Tea Drinking!  : )
 [ Reply ]
Mercola
  
William76
[ Joined on 08/07 ]  [ Posted on August 7, 2007]
2 Points        
   
Novice User
  Mercola

I agree.  Yerba Mate works great for me.  Everything else makes me jittery.

Mercola
  
Rendi
[ Joined on 06/06 ]  [ Posted on August 7, 2007]
2 Points        
   
Novice User
  Mercola

I've never tried Yerba Mate tea. I have tried a red tea, Rooibos. It tastes great and is promoted as organic and it contains several minerals. But, it also lists naturally occurring flouride. How is natural flouride any different than any other flouride? Has anyone else tried any of the red teas?

Mercola
  
emm76
[ Joined on 07/06 ]  [ Posted on August 7, 2007]
2 Points        
   
Apprentice User
  Mercola

Eco Teas has an excellent Mate that is unsmoked.  It is wonderful and no smokey aftertaste.  The site also sells Rooibos tea.  The Guayaki brand is ok but it can still have a little smokey aftertaste, if you like that.  But if you don't like smoke I would suggest Eco Teas and it is priced very well.  

  
  
Russ Bianchi
[ Joined on 09/06 ] [ Posted on July 19, 2007 ]
10 Points        
   
 
Savvy User
Green Tea is good for some plant sterols and antioxidants, but generally over hyped on total content.
 [ Reply ]
Mercola
  
jennifer howard
[ Joined on 01/07 ]  [ Posted on July 19, 2007]
7 Points        
   
Apprentice User
  Mercola
Anything hyped in the mainstream media is bound to be exaggerated as a panacea or wonder potion. I agree.
  
  
Texas_Cheryl
[ Joined on 07/07 ] [ Posted on July 24, 2007 ]
6 Points        
   
 
Novice User
They say "tea contains about half the caffeine found in coffee" like that's a bad thing.  If trying to cut down on caffeine then replacing coffee and sodas with tea can be a good thing.  I think we all agree water is best but sometimes you want something different.  Natural tea will always be better than those chemical concoctions most people call soda.
 [ Reply ]
  
  
jennifer howard
[ Joined on 01/07 ] [ Posted on July 19, 2007 ]
4 Points        
   
 
Apprentice User
I am sooooo sick of people saying they don't do something or other because there is no definitive scientific evidence to show its benefit. Don't let someone else do the detective work for you all of the time, and if the act won't hurt you and you don't hate it....what the heck, why not give it a shot? I have found teas to be quite beneficial for my health and actually enjoy a nice warm cup. Green tea is not the only brew with health effects, there are many. As a breastfeeding mother I love Mother's Milk blend and when I was pregnant Red Raspberry Leaf blend did wonders.
 [ Reply ]
  
  
mmc88121
[ Joined on 11/06 ] [ Posted on July 19, 2007 ]
4 Points        
   
 
Moderator User
I have never found green tea to be bitter.  Although I know many people who say it is.  I think if you find something to be extremely bitter it might not be what your body needs.

Mary
 [ Reply ]
  
  
Biologic_Dentistry
[ Joined on 07/07 ] [ Posted on July 26, 2007 ]
3 Points        
   
 
Novice User
yerba mate has far less fluoride than green or black teas. i found the info a few years ago, but they don't list it anymore.  here is more info on tea and fluoride, though: 

http://curezone.com/blogs/m.asp?f=1184&i=26
 [ Reply ]
  
  
remobec_203
[ Joined on 11/06 ] [ Posted on July 20, 2007 ]
3 Points        
   
 
Apprentice User
When I was young, I treated my mom to a tea room thing for Mother's Day. I didn't much care for tea, but I tried to order the kinds I thought I might like... like watermelon tea (?). I remember that one for some reason. It was dreadful, but I was taught to finish what I took, so I dutifully drank the stuff. Then the people came up and refilled! It was terrible. I didn't say anything but kept swallowing what they gave me. lol

Anyway, I've found that if you think you don't like tea, it may be just because you haven't found the kind you like. I'd suggest sipping friends' teas (if they're willing) or taking a teabag from a friends' pack to try it out. My favorites are the herbal teas (mint is my all-time favorite). I never much cared for green tea until I discovered Republic of Tea.

If tea drinking's a habit you want to develop, experiment and you may find some you really like.
 [ Reply ]