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Green tea and flouride....  This thread currently has 1,051 views. Print Print Thread
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Lloyd
Wednesday, December 20, 2006, 6:54am Report to Moderator Report to Moderator

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While doing other research I ran across this:

It turns out that both green and black tea products contain high amounts of naturally occurring fluoride. Tea leaves accumulate more fluoride (from air and soil pollution) than most other edible plants. Fluoride content in tea has risen dramatically over the last 20 years (probably due to increasing levels of pollution) as has tea consumption. Various studies within the past few decades show levels of fluoride in tea leaves to range from 50 to 340 ppm; recently, average levels of fluoride in a typical cup of tea exceeded 1 mg, or approximately 4 times the recommended amount for fluoridated drinking water. One cup of such tea would exceed amounts formerly prescribed by physicians as a treatment for hyperthyroidism, due to the effect of fluoride as a thyroid gland poison. And, the fluoride in tea is absorbed by the body in similar manner to fluoride in drinking water. [5g]


The article also has other complaints about tea (both green and black). The reference regarding flouride [5g] is: [5g] "Green Tea, Fluoride and the Thyroid"; Andreas Schuld, Parents of Fluoride Poisoned Children (PFPC), Vancouver, B.C., Canada; 1999 August 24; In: webpage at http://bruha.com/fluoride/

A table of some flouride in food values is at: http://bruha.com/pfpc/html/f-_in_food.html   Wherin it appears even canned sardines have appreciable flouride value.

I have no clue what to make of any of this. It seems worth looking at more closely to check for merit. Have at it!

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Don
Wednesday, December 20, 2006, 7:13pm Report to Moderator Report to Moderator

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I have always assumed that probably one of the main reasons that Dr. D only recommends 1-3 cups of green tea a day is because of the flouride content, although it may be some other reason too.

It is discouraging to read that the flouride level in tea has "risen dramatically".


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Don
Wednesday, December 20, 2006, 11:46pm Report to Moderator Report to Moderator

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Sam Dan
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Quoted from Alan_Goldenberg
Wherin it appears even canned sardines have appreciable flouride value.

I don't think it is as bad as it first appears. The number given for the sardines is per kg and a serving size would only be a small fraction of that.



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RHTeacher
Thursday, December 21, 2006, 1:29am Report to Moderator Report to Moderator

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This is a little off the subject but involves green tea - I went to give blood today and my hemeglobin count was one point too low to be able to give.  the nurse asked if I drank a lot of tea.  I told her that I drink green tea but only about 16 oz per day maximum.  She thought that might be a problem with iron absorption.  Have there been any other threads about that?  How would I find them?  Maybe I should cut back on the green tea for that reason and the flouride.
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Lloyd
Thursday, December 21, 2006, 1:57am Report to Moderator Report to Moderator

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Quoted from ironwood55

I don't think it is as bad as it first appears. The number given for the sardines is per kg and a serving size would only be a small fraction of that.




Actually, that would make it about the same as a cup of tea (1-4oz tin).

Whether or not to worry about it is the issue. I have no real feel for whether or not that should be troublesome. If it is, then a tin of sardines or a cup 'o tea is similar.
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Don
Thursday, December 21, 2006, 1:59am Report to Moderator Report to Moderator

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Drinking tea with meals will reduce iron absorption. I think it is probably OK in the amounts you indicated if you drink it in between meals, but if you are already doing this maybe it be worth cutting back for a month or two.


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Schluggell
Thursday, December 21, 2006, 9:56am Report to Moderator Report to Moderator

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The form of Fluoride in say an herbal like Tea - is drastically different from the form of the industrial waste product that is added back to the water that causes health problems....Also to consider, is that the fluoride sources used by industry to add to water is not considered "Food Grade"...

Regardless - plants and vegetable foods, have more than one chemical in their makeup that helps to assimilate the particular chemical/nutrient in question.
A natural form of Fluoride is needed by the body, albeit very trace amounts, much lower than doses added to water.

The form of Fluoride found in Tea is Calcium Fluoride {CaF}. A natural mineral in nature {Fluorite}.
The forms used by industry added to our water include Sodium Fluoride {NaF}, Sodium Hexafluorosilicic Acid {H2SiF6}, and Stannous Fluoride {SnF2} - which lets just say are synthesized commercially.


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Lloyd
Friday, December 22, 2006, 10:06pm Report to Moderator Report to Moderator

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Quoted from Schluggell
The form of Fluoride in say an herbal like Tea - is drastically different from the form of the industrial waste product that is added back to the water that causes health problems....Also to consider, is that the fluoride sources used by industry to add to water is not considered "Food Grade"...

Regardless - plants and vegetable foods, have more than one chemical in their makeup that helps to assimilate the particular chemical/nutrient in question.
A natural form of Fluoride is needed by the body, albeit very trace amounts, much lower than doses added to water.

The form of Fluoride found in Tea is Calcium Fluoride {CaF}. A natural mineral in nature {Fluorite}.
The forms used by industry added to our water include Sodium Fluoride {NaF}, Sodium Hexafluorosilicic Acid {H2SiF6}, and Stannous Fluoride {SnF2} - which lets just say are synthesized commercially.



Your argument may or may not be correct. The question would seem to be the biochemistry, whether the various forms are active (or even how active) in our processes, as to whether or not there should be concern.

Barring a reference to some study or reference that shows those values I still consider it a valid question, albeit one that may be of minor consequence. I won't deny that the flouride salts used in toothpaste and in drinking water are a different form, what I don't know is the relative levels of availabilty compared to that in food. Which is the important question, not whether or not it is "Natural".

There is a tendency to answer questions in a simplistic form that does not in fact answer the question, but rationalizes instead. In this particular case the answer given may well be correct in a general way and I don't have any real problem with the thesis being presented. I'm just looking for something a little more solid which may not be available.
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resting
Friday, December 22, 2006, 10:57pm Report to Moderator Report to Moderator

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Lloyd,

your questioning is more than valid.  Many years ago I worked in a silver refinery.  In this part of our country the silver was in a spiez(sp?) ore.  This is an arsenous based ore - a 'natural' poison.  Since arsenic is poisonous, I always wondered about the health consequences of daily handling this material (the fluoride in tea is drunk)  - we were never told!

John


The object of life is not to be on the side of the majority but to escape finding oneself in the ranks of the insane. Marcus Aurelius

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Maria Giovanna
Saturday, December 23, 2006, 8:52pm Report to Moderator Report to Moderator

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Kyosha Nim
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Hi John,
if green tea is dangerous how many dangers we do not know !
However I like it and cannot think my morning without two or three cups of green tea.
I'll try to drink rooibos, chamomile or ginger tea in the late afternoon or evening.
I'll really miss green tea in the afternoon.
Best wishes and Merry Christmas !
Maria Giovanna


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Eric
Saturday, May 31, 2008, 11:20pm Report to Moderator Report to Moderator

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I was reading through a book at the health food store that starts out hating on green tea.  His argument was that green tea in its ancient, natural state is great, but that everything you get today is going to cause cancer, rather than prevent it, due to high fluoride contents.  Apparently green tea absorbs atmospheric fluoride more than any other plant, and drinking 1 cup has anywhere from 1-20 mg of fluoride, which is many times more than the amount of fluoride in fluoridate water, and will cause all of these severe health problems, etc..  I was skeptical, but I'm also open minded, so I wasn't sure what Dr. D's or any of the other med. pro's on here opinion is.  


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Melissa_J
Sunday, June 1, 2008, 12:11am Report to Moderator Report to Moderator

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I know Dr. D. has responded to this question before, but unfortunately I can't find the specific quote.  Basically that the amount of flouride in green tea isn't enough to cause problems, especially if it is one's primary source of flouride (as in they don't drink flouridated water or use flouride toothpaste).  It's also a more natural form of flouride than found in flouridated water or toothpaste.

The gunpowder type of green tea is the highest in flouride.


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Lloyd
Sunday, June 1, 2008, 12:33am Report to Moderator Report to Moderator

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If you limit yourself to 2-3 cups/day the amount of flouride is pretty low. There should be an old thread on the ER board (or elsewhere in the forum) that I remember participating in, which discusses the amount of flouride in foods and a link that was found for flouride values in various foods.
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Lola
Sunday, June 1, 2008, 12:45am Report to Moderator Report to Moderator

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flouride and aluminum in teas can be found at
http://curezone.com/blogs/fm.asp?i=985120
roughly 1/3 of the way down the web page.


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Mrs T O+
Sunday, June 1, 2008, 12:59am Report to Moderator Report to Moderator

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I'm sure it's safer in its natural state, just like with iron in meat. We Os eat a lot of meat, but don't get that disease with the long name.
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TJ
Sunday, June 1, 2008, 2:26pm Report to Moderator Report to Moderator

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In fluoridated water, supposedly the fluoride isn't as bad as the other stuff that goes in WITH the fluoride!
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Melissa_J
Sunday, June 1, 2008, 4:12pm Report to Moderator Report to Moderator

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Quoted from Mrs T O+
I'm sure it's safer in its natural state, just like with iron in meat. We Os eat a lot of meat, but don't get that disease with the long name.


Do you mean hemochromatosis?  Os can get it, though I don't know that meat alone will cause it, or if supplements are usually involved.  I had it before having children, now teeter more on the anemia side of things.  One theory is that hemochromatosis is an adaptation to celiac disease, as the genes are very close to each other (linked).

Anyway, if we do get it, the Red Cross is always happy to take our O blood donations.



Type O+ blogger, secretor afterall. Gluten intolerant. With two gluten intolerant sons:  A+ Secretor 10 yo (also fructose intolerant and slightly egg allergic), and  O- 7yo.
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Christopher1
Wednesday, September 25, 2013, 1:49pm Report to Moderator Report to Moderator

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Guess I'll have to change from green tea to yerba mate. I'm sensitive to fluoride.

Not going to risk it.
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ruthiegirl
Wednesday, September 25, 2013, 2:18pm Report to Moderator Report to Moderator

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Let's not forget that the amount of fluoride in drinking water is counting on you drinking 8 cups a day plus using it for cooking (including tea) plus possibly absorbing more through the skin from bathing.  There's a considerable difference in the amount of total fluoride ingestion from 1-3 cups of tea rather than 8+ cups of water!

If a cup of green tea, brewed in un-fluoridated water, is equal to the fluoride in 1 cup of fluoridated water, then the tea drinkings are still getting less fluoride per day than the ones using fluoridated tap water.


Ruth, Single Mother to 19yo   O- Leah , 18yo O- Hannah, and  12yo B+ Jack


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Seraffa
Wednesday, September 25, 2013, 11:02pm Report to Moderator Report to Moderator

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I mentioned something 2 weeks ago about spontaneously going off green tea when my thyroid kicked up again. I still never think about drinking it. I get the every-which-way-purified-with-minerals-added-back-in gallons of water from water machines that don't rely on the city tap water. And I still forget to drink green tea except for 2 days ago. I bought white tea for when I get a tea urge when I found out it was a neutral  . I don't take showers for very long, either. I hope my glycerin soap helps take the flouride off my skin.  


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