Thyroid UK
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Addition of fluoride in water supplu

As some areas add fluoride to the water without public knowledge, are there any research papers on the amount of fluoride put in the water, and the effects on the thyroid?

Does the public have the right to say no to fluoride in water? Do the problems of fluoride

outweigh the benefits of adding it to water supplies. Comments would be welcome.

24 Replies

I don't have any research papers to link you to, but it is well-known that fluoride has a detrimental effect on thyroid.

There are no advantages to adding fluoride to water. Except for industry because, in fact, what they add to water and toothpaste, is industrial waste that they would otherwise have to pay to dispose of. They now dispose of it by putting it into our bodies! But, as far as I know, we have no say in the matter!


Thanks greygoose for info on fluoride in water and in toothpaste. I have screened out toothpaste with fluoride in. I was looking at drugs containing fluoride

which include Prozac Seuroxat andFfluoxetine, but there is no information available to say that t3 formation is affected in the thyroid given by the doctors who prescribe it. Do you know of any other types of antidepressants or drugs such as antibiotics which contain fluoride?

I was shocked to see that an MP was wanting to add fluoride to every region water supply even with the knowledge of the dangers of fluoride to the thyroid gland.


It is quite a big accusation that fluoride is added without public knowledge.

Most of us can readily obtain quite comprehensive analyses of our water supplies (I certainly can fidn mine online with minimum effort). We also have Freedom of Information Act rights to request further information. (Won't always be fulfilled but we can ask.)


Hi Helvella. My comments were concerns of absence of information given to the public

when they join a water company. We all pay our bills but are never told of additives

including fluoride to our tap water. The fact we have freedom of information to request

information doesn't seem to conform to trading standards of fitness for purpose.

As we have weather and pollen counts, perhaps water boards in each region should

state what additions they make to domestic water, and give warnings if there are any

problems with water standards on the internet. The usual line from public health sources are that

the addditives are within normal limits, but fluoride is known to harm thyroid health.

Could it be that some sensitive people, are drinking water with fluoride which even if

in traces, can affect them?


Not sure what you are really expecting.

The information is available. It is up to you whether or not you go and read it, or act on it.

Of course, if you cannot freely choose a location which has a water supply you are happy to consume, your options are limited. Most of us cannot make the precise details of the water supply a make-or-break issue when moving. That is most obviously the case when there is some degree of pressure to move to a specific location (e.g. for work purposes, or educational establishment).

So we are left with the options of in some way processing our water such as filtering or distilling, or importing it (in bottles or in bulk) from wherever we can. We cannot expect a new main to supply water from another location! :-)

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We cannot expect a new main from another location, but we could expect information concerning the toxicity of fluoride, and the fact that it cannot be removed by ordinary water filter cartridges and builds up even when the water is filtered.

Also as fluoride is imported from China it may contain harmful additives such as lead and arsenic.

I don't expect any change in water boards methods of disinfecting water.

May be public awareness can be raised as to the incidence of hypothyroid disease in areas where fluoride has been added to the water supply.

For example the West Midlands has a higher incidence of hypothyroid disease than Greater Manchester which does not add fluoride to the water.

Not that that could be conclusive evidence.


Is fluoride for water treatment in the UK imported from China? Never managed to find any support for that idea - but I haven't really spent much time looking.

I agree that there should be proper investigation as to why the difference between West Midlands and Greater Manchester. Trouble is, there are so many factors that could produce differences - other than fluoride - so it requires very careful research.

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15 love! You are right.

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Years ago when someone was hyper they were given fluoride to reduce it!


That's interesting. I wonder why this practise has stopped. Other administrators seem

to have information that fluoride added to water is damaging to the thyroid.


ThyroidUK has an article on flouride

A couple of other articles - this one inks to an interesting study which found:

"We found that higher levels of fluoride in drinking water provide a useful contribution for predicting prevalence of hypothyroidism. We found that practices located in the West Midlands (a wholly fluoridated area) are nearly twice as likely to report high hypothyroidism prevalence in comparison to Greater Manchester (non-fluoridated area). Interpretation In many areas of the world, hypothyroidism is a major health concern and in addition to other factors—such as iodine deficiency—fluoride exposure should be considered as a contributing factor. The findings of the study raise particular concerns about the validity of community fluoridation as a safe public health measure."

I lived in Birmingham from 1948 to 1994. Birmingham added flouride to its water in 1964. I developed hypothyroidism in 1974, my mother did a few years later, as did my sister in-law, and later on still my daughter in law. Sort of bears out the findings of that study!

And, of course, there will be articles that dismiss the connection!!!!

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I have recently read that the fluoride is a by product of aluminium manufacture. It is industrial waste, and if imported comes from China with

additives such as lead and arsenic. I think your information concerning

fluorides in the West Midlands in comparison to Greater Manchester shows

a link with hypothyroidism. I am saving up for a water distiller which is the only method of removing fluoride and other chemicals from the water.

H20 have a range imported from the USA but are a British on line company

with a telephone number, so can order one by phone.


I live in Wales now and Welsh Water does not add flouride to our water supply. It does contain naturally occuring flouride which is not removed, but it's good to know there is no addition of the industrial waste type flouride.


Is wales the exception to adding fluoride because of it's natural ocurring fluoride? What are the components of natural fluoride

as opposed to chemically processed fluoride which can't be

removed from purification of water and is known to be harmful?


As far as I know the amount of naturally occuring flouride varies depending on location.

Each area decides whether or not to add flouride. Currently there are no plans to add it to our water here in Wales (Dwr Cymru/Welsh Water is our water supplier).

According to Welsh Water naturally occurring levels are typically less than 50 microgrammes/litre.

According to NHS Choices in areas where fluoride has been added it brings it up to around 1mg of fluoride per litre of water, which they say is a level found to reduce tooth decay levels.

You can Google to see if your area adds flouride to it's water.

An article in the Telegraph

Most articles mention about flouride protecting teeth. There aren't many you'll find in newspapers mentioning the problems flouride causes but you can find some on the internet

I can't help with the science of natural v chemically processed flouride, all I know is that the flouride that is added to water is waste product


Thanks Susie. Read that imported fluoride can contain lead and arsenic which are part of by products of processing. This can be in toothpaste

and water?


I think where flouride is added then it is going to be the 'waste product', they're not going to be adding naturally​ occurring flouride. So yes, water (where flouride is added) and toothpaste I imagine contains the waste product type.


I don't think any fluoride ions can be readily removed from water. Whether they were in the original water or added during treatment - or as a tea bag!

I don't think there ever was a formal, rational, scientific (or pseudo-scientific) rationale for the addition of fluoride across the country. Clearly they wouldn't be adding it where fluoride was already high - but the obvious approaches (add to lowest fluoride areas) was not followed either.

The Welsh question can be partially answered by the water company! (Assuming Dwr Cymru rather than a Severn Trent area.) Not sure if this link will automatically download a PDF or if you have to click on "Fluoride Fluoridation" at the right of the page:

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It's catch 22 - if we don't know if fluoride is building up in the water, as it cannot be removed during

purification processes. Thank you for your interesting reply.



The trouble with a distiller is that it removes all of the good minerals and nutrients that are contained within tap water as well as the bad.



I suppose it depends on the area. The chlorine is so strong in our postcode that we have to

filter water. Ours is a soft water area. Hard water areas have more calcium which could affect

the parathyroids?


The powers that be seem to be able to add Flouride and we can do zip about it

They are under the delusion that its good for kids teeth but conveniently ignore the damage it does to thyroid ,bones and whole body

Alum and other Aluminium salts are also often used in water treatment works and is even worse

Flouride is the waste product of the Aluminium industry which instead of paying for its disposal they have conned authorities in adding it to water supplies

Flouride is the non stick coating on cookware

Everyone needs to check every item of cookware and totally get rid of all Aluminium and non stick coated cookware

Only ever use Stainless Steel or Cast Iron or glass

Do not believe any claims that anodised aluminium is safe or that ceramic is not coated aluminium .....its the heating of aluminium in pans, slow cookers ,coffee machines,that causes the problem by creating a kind of radiation that affects the food and you

A very easy proof is to put bowls of food in front of newly weaning puppies or kittens ...the dish thats cooked in aluminium will be ignored until its total starvation state

So animals have inbuilt instinct to avoid poisons

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I read some where that cats have a strong survival rate as their thyroid glands

cope with toxins and even radiation. I wonder why rabbits get mixymodoema giving them hypothyroid so they die? I agree with your comments entirely. I've just bought a new frying pan to replace an aluminium one, but after your comments may be I should

chuck it out. It has a white surface and looks innocuous!


I suggest your white coating on frypan is ceramic onto aluminium

Sadly little better than non stivk coated


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