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Posts Tagged ‘dentistry’

Harvard Study Links Fluoride in Water to Lower IQ

In Uncategorized on August 29, 2012 at 4:20 pm

Harvard University researchers’ review of fluoride/brain studies concludes “our results support the possibility of adverse effects of fluoride exposures on children’s neurodevelopment.” It was published online July 20 in Environmental Health Perspectives, a US National Institute of Environmental Health Sciences’ journal (1),

“The children in high fluoride areas had significantly lower IQ than those who lived in low fluoride areas,” write Choi et al.

Further, the EPA says fluoride is a chemical “with substantial evidence of developmental neurotoxicity.

Senior author Philippe Grandjean says, “Fluoride seems to fit in with lead, mercury, and other poisons that cause chemical brain drain. The effect of each toxicant may seem small, but the combined damage on a population scale can be serious, especially because the brain power of the next generation is crucial to all of us…This risk should not be ignored,” he says.

Fluoride (fluosilicic acid) is added to US water supplies at approximately 1 part per million attempting to reduce tooth decay.

Water was the only fluoride source in the studies reviewed and was based on high water fluoride levels. However, they point out research by Ding (2011) suggested that low water fluoride levels had significant negative associations with children’s intelligence.

Choi et al. write, “Although fluoride may cause neurotoxicity in animal models and acute fluoride poisoning causes neurotoxicity in adults, very little is known of its effects on children’s neurodevelopment.” They recommend more brain/fluoride research on children and at individual-level doses.

“It’s senseless to keep subjecting our children to this ongoing fluoridation experiment to satisfy the political agenda of special-interest groups,” says attorney Paul Beeber, NYSCOF President.  “Even if fluoridation reduced cavities, is tooth health more important than brain health? It’s time to put politics aside and stop artificial fluoridation everywhere,” says Beeber.   

After reviewing fluoride toxicological data, the National Research Council reported in 2006, “It’s apparent that fluorides have the ability to interfere with the functions of the brain.”

Choi’s team writes, “Fluoride readily crosses the placenta. Fluoride exposure to the developing brain, which is much more susceptible to injury caused by toxicants than is the mature brain, may possibly lead to damage of a permanent nature.”

Critics of this research review falsely claim it’s irrelevant because the studies represent high water fluoride levels.

But according to Paul Connett, PhD, co-author of The Case Against Fluoride, “Xiang et al, 2003, one of the 27 studies reviewed by Choi estimated that the threshold for the lowering of IQ was 1.9 ppm. A child drinking two liters of water at 1 ppm fluoride (2 mg of fluoride per day) would get more fluoride than some of the Chinese children drinking one liter of water at 1.9 ppm (1.9 mg/day).

‘Moreover another study ( Ding et al., 2012) found a lowering of IQ in the range of 0.3 – 3 ppm. No matter how you cut it – and no matter how much you want fluoridation to continue for emotional reasons – the science says that there is no adequate margin of safety – by any normal and rational toxicological standard – to protect ALL of America’s children from this serious end point. This outdated practice must be ended QUICKLY before we do further damage to our children and our future. If you must have fluoride, then brush it on your teeth and spit it out but don’t force it on the whole population via our drinking water.”

Fluoride accumulates in the body. Even low doses are harmful to babies, the thyroid, kidney patients and heavy water-drinkers. There are even doubts about fluoridation’s effectiveness (2).  New York City Legislation is pending to stop fluoridation. Many communities have already stopped

Infant formula when mixed with fluoridated water delivers 100-200 times more fluoride than breastmilk. (3)

Audio of radio interview with Paul Connett, PhD, Executive Director, Fluoride Action Network regarding this study is here: http://tinyurl.com/d6x6gog

http://www.fluoridation.webs.com

http://www.FluorideAction.Net

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All Infant Formula Contains Fluoride at Tooth Discoloring Levels

In Uncategorized on October 27, 2009 at 10:17 am

October 2009 – All infant formulas, whether ready-to-feed,
concentrated or organic, contain fluoride at levels which can discolor
developing teeth, reports the October 2009 Journal of the American
Dental Association (JADA) (1).

Fluoride, added to some bottled and public water supplies ostensibly
to prevent cavities, is also in many foods and beverages, including
infant formula. Excessive fluoride discolors and/or weakens permanent
teeth (moderate fluorosis).

Researchers measured fluoride content of 49 infant formulas. See:
http://www.freewebs.com/fluoridation/infantformulafluoride.htm

The research team concludes,  “Most infants from birth to age 12
months who consume predominantly powdered and liquid concentrate
formula are likely to exceed the upper tolerable limit [of fluoride]
if the formula is reconstituted with optimally fluoridated water (0.7
– 1.2 ppm).”

Surprisingly, the study reveals that all 6-month-olds and younger will
also exceed the lower “adequate intake” (0.01 mg/day) from all
formulas (concentrated or not) risking moderate dental fluorosis from
formula, alone. (2)

Breast milk contains about 250 times less fluoride than “optimally”
fluoridated water and isn’t linked to fluorosis.

“Babies don’t need fluoride and fluoride ingestion doesn’t reduce
tooth decay,” says attorney Paul Beeber, President, New York State
Coalition Opposed to Fluoridation, Inc. “So why are US babies still
exposed to unnecessary fluoride chemicals via the water and food
supplies and why aren’t parents informed of the consequences?” asks
Beeber.

Up to 48% of school children have fluorosed teeth – 4% severe, reports
the Centers for Disease Control (CDC) (3).

Both the CDC and the American Dental Association’s web sites advise
parents to avoid mixing fluoridated water into concentrated infant
formula, but they have never effectively broadcast this information to
parents or the media (4,5).

A review of human studies by different researchers published in JADA
(July 2009) concluded, “Our systematic review indicated that the
consumption of infant formula [concentrated and ready-to-feed] is, on
average, associated with an increased risk of developing at least some
detectable level of enamel fluorosis.” (6)

“Parents, protect your children since dental and government agencies
won’t. Petition local and state legislators to stop adding unnecessary
and harmful fluoride chemicals into public water supplies and,
thereby, into our food supply,” says Beeber. “Further, demand that the
fluoride content of all food products be required on labels.”

Researchers agree that infant formula levels should be lowered.

“One interpretation of the available
evidence would be that public health officials should create
guidelines for infant formula consumption ensuring that the upper
intake level established by the Institute of Medicine… is not
exceeded. Another approach would be to strive for ‘biological
normality’ and to strive for fluoride levels observed in breast milk,”
write Hujoel et al. in “Infant Formula and Enamel Fluorosis: A
Systematic Review. (6)

A recent investigation by the Environmental Working Group (EWG) found
that over-exposure to fluoride among infants is a widespread problem
in most major American cities. EWG’s study found that, on any given
day, up to 60% of formula-fed babies in US cities were exceeding the
Institute of Medicine’s “upper tolerable” limit for fluoride. (6a)

In 2004, fluoride researcher Dr. Teresa A. Marshall told Reuters
Health, “Very young infants are unlikely to benefit from the caries-
prevention effects of fluoride…They may be at increased risk of dental
fluorosis.” (7) Marshall co-authored “Associations between Intakes of
Fluoride from Beverages during Infancy and Dental Fluorosis of Primary
Teeth,” in the Journal of American Clinical Nutrition. (b)

In 2000, researcher A K Mascarenhas evaluating only well-conducted
studies from the 1980s through the 1990s concluded in Pediatric
Dentistry that infant formula was a major risk factor for dental
fluorosis. (8)

As part of the on-going Iowa Fluoride Study, Levy and his team
measured the fluoride content of infant formula and found from 0.15 to
0.30 ppm in ready-to-feed infant formula. (9)

Common household water filters (e.g. carbon filters) do not remove
fluoride and unlike chlorine, which dissipates upon boiling, fluoride
becomes more concentrated when water is boiled.

Only distillation, reverse osmosis and political activism removes fluoride from tap water.

Parents are advised to control their chldren’s total daily fluoride intake with the help of their dentists.  But most dentists don’t know what foods contain fluoride and at what levels.  Also, most dentists are unaware that fluoride ingestion does not reduce tooth decay e.g. http://tinyurl.com/Yoder The USDA set up a Fluoride in Foods database to help parents out.  However, that also is not well-advertised.

USDA: Fluoride-content of common foods: http://www.ars.usda.gov/Services/docs.htm?docid=6312

Pictures of fluorosis
http://www.fluoridealert.org/health/teeth/fluorosis/moderate-severe.html

SOURCE:  New York State Coalition Opposed to Fluoridation, Inc.
http://www.orgsites.com/ny/nyscof
http://www.FluorideAction.Net

 

References:

1)   “Assessing a potential risk factor for enamel fluorosis: a
preliminary evaluation of fluoride content in infant formulas,”
Journal of the American Dental Association October 2009

2) http://fluoridation.webs.com/intakefromformula.htm

3) http://www.cdc.gov/mmwr/preview/mmwrhtml/figures/s403a1t23.gif

4) http://www.cdc.gov/fluoridation/safety/infant_formula.htm

5)  http://www.ada.org/prof/resources/pubs/adanews/adanewsarticle.asp?art…

6)  “Infant Formula and Enamel Fluorosis: A Systematic Review,”
Journal of the American Dental Association by Hujoel, et al, July 2009

6a) “National Academy Calls for Lowering Fluoride Limits in Tap
Water,” EWG News Release, March 2006 http://www.ewg.org/node/21000

7) “Too Much Fluoride May Harm Babies’ Teeth,” Reuters Health, May 5,
2004
http://www.fluoridealert.org/media/2004c.html

8) Pediatric Dentistry. July-August 2000. “Risk factors for dental
fluorosis: a review of the recent literature,” by Mascarenhas AK
http://www.ncbi.nlm.nih.gov/pubmed/10969430?dopt=Abstract

9) Dental Clinics of North America 47(2003), “Current and future role
of fluoride in nutrition,” by Warren & Levy, 225-243

More evidence that infant formula is linked to dental fluorosis:

http://tinyurl.com/AllFormulaContainsFluoride