India says fluoride damages your brain

[Wild Cobra]

yeah so the volume of the toothpaste is so small that it's actually not much, gotcha. but between the water supply and the toothpaste, I just really don't see the point in taking the risk. fluoride hasn't been proven to be good for the teeth at all, this is a myth. with nothing to gain and health to lose, i just abstain from it until further notice. my city has an unusually high amount of fluoride in the water, some 2.5 times what is in the surrounding cities. I guess it's at the high end of "safe levels"

I guess we all have to be afraid of something. My fear is heights.

[Blake]

toms of maine

Toms of Maine fluoride-free contains hydrated silica.

http://www.tomsofmaine.com/products/...ree-toothpaste

this link says hydrated silica damages enamel:

http://www.oramd.com/6HiddenDangersinToothpaste.pdf

oh noes! what are you going to do?!?!?!?

[TDMVPDPOY]

using a rat compared to a human being when dosage to weight ratio or consumption....then adjusting the results for a human being is just fkn fail

[ChumpDumper]

yeah someone explain it i'm interested. never claimed to be the founder of this theory, what i find interesting is that all of these foreign studies in countries that don't use fluoride find that it's harmful and are adamantly against it.

Actually the region where the study was done has a natural level of fluoride 3-7 time that of fluoridated water supplies in the US.

http://www.fluorosisinandhra.org/fluorosisinap_page.htm

I can see why they would want to study the effects of fluoride, but I don't see why they used a level of fluoride three times the level found in the most naturally fluoridated water supply listed.

[Agloco]

i'm a finance major not a scientist

You know, as I read through this thead I said to myself "I'll bet YH doesn't even know what ppm means."

RG has a way of getting to the heart of the matter.

[boutons_deux]

fluoride helps the body absorb aluminum, aluminum is linked with Alzhemer's.

[boutons_deux]

Mercola hates fluoridation, has big compilation of studies:

http://search.mercola.com/search/pag...spx?k=fluoride

[JoeChalupa]

I think the Crest spokes model is hot.

[RandomGuy]

i'm a finance major not a scientist

It's basic algebra, and a tiny, small, easily doable bit of critical thinking.

You do more complex stuff in finance classes than what I asked you to do.

[TDMVPDPOY]

kindian study....did they base the results from the ganji river

[RandomGuy]

You know, as I read through this thead I said to myself "I'll bet YH doesn't even know what ppm means."

RG has a way of getting to the heart of the matter.

Indeed.

Now that we have the meaning of PPM cleared up, i.e. parts per million, the question remains.

Sounds good to me.

I don't eat it by the pound.

Let's try some math, Mr. 3.8

1000 millileters of water contains how much floride at 1ppm?

1 millileter of toothpaste contains how much floride at 1000ppm?

While you are calculating that, maybe someone else will tell the class approximately how much toothpaste out of the 1 millileter that ones places on the toothbrush actually is consumed in the act of brushing ones teeth? A rough estimate will do.

No, I am not concerned.

http://en.wikipedia.org/wiki/Litre
Milliliter = one thousandth of a liter

One liter = .87 quart = A biggish glass of water
One milliliter = 1 cubic centimeter = a VERY big dollop of toothpaste

So let's crunch the math.

1ppm * 1000 milliliters = .001mL total floride compound in glass of water
1000ppm * 1 millileter = .001mL total floride compound in a very large dollop of toothpaste.

The total floride in ONE large dollop of toothpaste is equivalent to the total floride in ONE large glass of water.

If one swallows all that toothpaste, then that is the equivalent of one glass of water.

If one does not swallow the toothpaste, but rather spits 95% of it out, you would have to brush your teeth about 21 times in a day before you have consumed more floride than in the large glass of water, if you use an entire mL.

Given that most use about half (my guess) of that, probably less, that means you would, conservatively, have to brush your teeth about 50 times per day to get the same amount of floride as one large glass of water , or .125 times the recommended amount of water, one is supposed to drink on a daily basis.

I am not a scientist. I am an accountant, albeit one with a high degree of scientific literacy.

No, I am not worried about the floride in toothpaste. When I brush my teeth, I use quite a bit less than 1mL, and I certainly don't brush them fifty times a day.

[RandomGuy]

On a side note, bad for your brain health or not, my teeth have gotten a lot whiter and more healthy since switching to fluoride free toothpaste. And there are also some studies which link it to alzheimers, another disease previously unheard of before the time fluoride was introduced to the water system.

Living to be old enough to get Alzheimers was previously unheard of before the time flouride was introduced to the water system.

Cause, meet correlation.

Black and white people dating was previously unheard of before the time flouride was introduced to the water system.

I wonder if flouride causes racial mixing?

"some studies" = "some people".

http://demog.berkeley.edu/~andrew/1918/figure2.html

Life expectancy for a 50 year old in 1950 was... -3 years. The average person born in 1900 would die by age 50.

The big jumps in life expectancy didn't really take place until the 40's.

Given that
1) most people didn't live long enough to get it,
and
2) there was therefore very little research done on it, so there was very little diagnosis

Drawing a link between floride in the water and Alzheimers, requires a bit more proof.

One reported study suggests that relatively high fluoride in drinking water plays a preventive role in Alzheimer's disease

http://www.ncbi.nlm.nih.gov/pubmed/1617567

If there were real strong links, they would be easy to spot and identify. The fact that there is a lot of studies on it, and they give conflicting results, suggests that we need to work a bit more at understanding it and the links are not all that strong.