Doctor Exposes Fluoride as Poison

Fluoride Reduces IQ – 23 published studies

From the Fluoride Action Network

23 published studies report an association of reduced IQ
with high fluoride exposure

Print version (pdf)

In the summer of 2008, the following two reports reviewed the published studies reporting an association of high fluoride exposure and reduced IQ. The fluoride levels in water in these studies range from 0.88 – 9.4 ppm.

Connett M, Limeback H.
Fluoride and its effect on human intelligence. A systematic review.

International Association for Dental Research 83rd General Session and Exhibition. Toronto, Canada.
Poster 2205. July 4, 2008.

Tang Q-Q, Du J, Ma H-H, Jiang S-J, Zhou X-J.
Fluoride and Children’s Intelligence: A Meta-analysis.
Biol Trace Elem Res. 2008 Aug 10. 2008.

The Tang et al. study cites 16 studies, including 5 Chinese studies that had not been translated into English. FAN plans to have them translated.

The Connett & Limeback review, published prior to Tang et al., found 18 out of 20 studies reporting an association to fluoride exposure and lowered IQ. Their results are reproduced below in the following Table.

The citations for the 23 studies are listed at the end with links to the Chinese and translated versions.

The Fluoride journal published 6 of the translated Chinese studies on fluoride’s impact on IQ in its April-June 2008 edition (Qin-1990, Chen-1991, Guo-1991, Liu-2000, Hong-2001, Li-2003) and will publish more translated studies in later editions.

Twelve (12) of the human/IQ studies were originally published in Chinese. Julian Brooke translated these studies into English under contract with Fluoride Action Network.

In their review of the toxicology of fluoride, the committee who authored the 2006 National Research Council of the National Academies report on fluoride (NRC), cited only 3 of the 23 studies in its ‘Findings on Human Cognitive Abilities’, and cited 6 of the 23 studies in its references (Yang et al., 1994; Li et al., 1995; Lin et al., 1991; Zhao et al., 1996; Lu et al., 2000; Xiang et al., 2003). 5 studies (including one untranslated Chinese study) were published after the NRC report was released. The NRC report stated:

Human Cognitive Abilities.
In assessing the potential health effects of fluoride at 2-4 mg/L, the committee found three studies of human populations exposed at those concentrations in drinking water that were useful for informing its assessment of potential neurologic effects. These studies were conducted in different areas of China, where fluoride concentrations ranged from 2.5 to 4 mg/L. Comparisons were made between the IQs of children from those populations with children exposed to lower concentration of fluoride ranging from 0.4 to 1 mg/L. The studies reported that while modal IQ scores were unchanged, the average IQ scores were lower in the more highly exposed children. This was due to fewer children in the high IQ range. While the studies lacked sufficient detail for the committee to fully assess their quality and their relevance to U.S. populations, the consistency of the collective results warrant additional research on the effects of fluoride on intelligence. Investigation of other mental and physiological alterations reported in the case study literature, including mental confusion and lethargy, should also be investigated.
Ref: bottom of page 220 to page 221

The NRC report also stated:

On the basis of information largely derived from histological, chemical, and molecular studies, it is apparent that fluorides have the ability to interfere with the functions of the brain and the body by direct and indirect means. To determine the possible adverse effects of fluoride, additional data from both the experimental and the clinical sciences are needed.
http://www.nap.edu/openbook.php?record_id=11571&page=222

Table from Connett and Limeback 2008 review [comments in italics were not in original paper]
Author
(Year)
Group
compared
Water
[F-]ppm
n Urine
[F-]
IQ test IQ
Results
S.D.
+/-
p Conclusion
Hu
(1989)
Low F
High F
<0.70
>7.0
181
198
ND
ND
84.9
85.15
NR
NR
>0.05 “the effect of fluoride poisoning on intellectual ability is negligible”
Ren
(1989)
Low I
High F, low I
Not
reported
169
160
ND Wechsler 85
64.8
22.3
20.4
<0.01 “Disrupted child intellectual development” is “clearly much more serious” from a “ harmful environment containing both high fluoride and low iodine …than the effects of iodine deficiency alone”
Qin
(1990)
Low F
Normal F
High F
0.1-0.2
0.5-1.0
2.1-4.0
147
59
141
ND
ND
ND
Raven 23.03
28.14
21.17
NR
NR
NR
>0.05
<0.01
“A child whose drinking water is above 2.0 mg/L or below 0.2 mg/L manifest intellectual deficits as compared to ‘normal’ control group.”
Guo
(1991)
Control
Endemic    fluorosis
Serum F
0.10
0.15
61
60
ND
ND
Chinese
Binet
83.95
77.30
8.93
8.52
(7-9 yr.)

<0.05

“children living in high fluoride areas have lower IQs”
Lin
(1991)
Low F, (Low I)
High F (high I)
0.34 (0.96 ppb)
0.88 (5.21 ppb)
256
250
1.52
2.56
78
71
NR
NR
<0.01 “low iodine intake coupled with high fluoride intake exacerbates the central nervous lesions and the somatic developmental disturbance of iodine deficiency”
Chen (1991) Low F
High F
0.89
4.55
320
320
ND
ND
Raven 104.03
100.24
14.96
14.52
<0.01 “fluoride has a direct connection with intellectual development of children”
Yang (1994) Low F (Low I)
High F (high I)
0.5 (0.13 mg/L)
2.97 (1.1 mg/L)
416
1102
0.82
2.03
Chinese Comparative Scale of Intelli-gence Test 81.97
76.67
11.97 7.75 >0.05 IQ ‘somewhat’ lower but not significant

“The average IQ scores of children in the high fluoride, high iodine area and the control area were 76.67±7.75 and 81.67±11.97 respectively. This difference is not significant, however the number of children showing moderately low IQ scores in the subject population is significantly higher than the control. See Table 2.”

Li
(1994)
Low F

HF I no fluorosis
HF II fluorosis
HF III flurosis

0.3 in all water
0.5 ppm (grain)

4.7 ppm (grain)
5.3 ppm (grain)
31.6 ppm(grain)

51

33
37
36

ND
ND

ND
ND
ND

Work capacity
(reaction time, short-term memory, etc.)
Two com-ponents  of mental capacity decreased 0.05
and
<0.01
“early prolonged high fluoride intake causes a decrease an a child’s mental work capacity”
Li
(1995)
Low F
High F
fluorosis

low-mild
severe

226
230
1.02
2.69
Rui Wen 89.9
80.3
10.4
12.9
<0.01 High fluoride environment can adversely affect the development of intelligence in children
Wang (1996) Low F
High F
<1.0
>1.0 – 8.6
83
147
ND
ND
Wechsler 101.23
95.64
15.84
14.34
<0.05 “high fluoride intake has a clear influence on the IQ of preschool children”
Zhao
(1996)
Low F
High F
0.91
4.12
160
160
ND
ND
Pau Wan 105.21
97.69
14.99
13.00
<0.01 “The intake of high fluoride drinking water before birth had a significant deleterious influence on children’s IQ. “
Lu
(2000)
Low F
High F
0.37
3.15
58
60
1.43
4.99
Raven 103.5
92.2
13.86
20.45
<0.005 “exposure of children to high levels of fluoride may therefore carry the risk of impaired development of intelligence”
Hong
(2001)
Low F
High F
High F, low I
0.75
2.90
2.94
32
85
28
ND
ND
ND
Raven 82.79
80.58
68.38
8.98
2.28
19.12
>0.05
<0.01
F makes I-deficiency worse, lowering IQ more than just with low I
Li
(2003)
Non-fluorosis
fluorosis
ND
ND
301
419
ND
ND
Raven 96.97
88.67
18.43
15.26
<0.01 Fluoride disrupts intellectual development
Xiang
(2003)
Low F
High F
0.36
2.47
135
155
1.11
3.47
Combined raven 100.41
92.02
0.003 drinking water fluoride levels greater than 1.0 mg/L may adversely affect the development of children’s intelligence”
Wang
(2005)
Control
dental fluorosis
skeletal fluorosis
49
97
57
1.61

1.35

Raven percentiles
5-25 >75
4
14
24
8
12
2
<0.01 “..Negative correlation between urine fluoride and intelligence”

“…The numbers of below-average IQ subjects from the two fluorosis groups were clearly higher than the control group. Further demonstrating that high fluoride intake has a damaging effect on intellectual ability.  Even the control group had 16.3% of subjects in the low range, suggesting that even moderate levels of fluoride contamination such as were present in the control zone can still have a noticeable effect on the intellectual development of children.”

Seraj
(2007)
Low F
High F
0.4
2.5
85
41
ND
ND
Raven 98.9
87.9
12.9
11.0
0.000 “High F may be associated with impaired development of intelligence”
Rocha-Amador (2007) Low F
Mod F
High F
0.8
5.3
9.4
52
20
60
1.5
6.0
5.5
Wechsler b values
-6.7
-11.2
-10.2
<0.001
<0.001
<0.001
“Children exposed to either F or As have increased risks of reduced IQ scores”
Trivedi
(2007)
Low F
High F
2.01
5.55
101
89
2.30
6.13
Stanford-Binet 100.04
91.72
1.23
1.13
<0.001 “..the mean IQ level of students exposed to high F drinking water was significantly lower than that of the students to a lower F level drinking water”
Wang
(2007)
Low F
High F
0.5
8.3
110
106
1.5
5.1
Raven 105
101
15
16
<0.05 “Children’s intelligence and growth can be affected by high concentrations of As or fluoride.”

For the sources to this table click here

The Truth About Hydrofluorosilicic Acid

Ok folks, this one is downright crazy! It is so hard for me to believe that this stuff (Hydrofluorosilicic Acid) is a known toxic waste produced by the phosphate industry, yet it is added to all of our water supplies even though there has never been a single study that shows it to be safe.

a former EPA official said it this way:

‘”If this stuff gets out into the air, it’s a pollutant; if it gets into the river, it’s a pollutant; if it gets into the lake it’s a pollutant; but if it goes right into your drinking water system, it’s not a pollutant. That’s amazing… There’s got to be a better way to manage this stuff” (Hirzy 2000)

You will be shocked to learn the history of How this all came about. Check out this short (10 min) videi I just made. It is based of the excellent article here (go there for references)

Fluoride and the Pineal Gland

Here is a video I just made based of the article here

Berkey Water Filters

The single animal study of pineal function indicates that fluoride exposure results in altered melatonin production and altered timing of sexual maturity. Whether fluoride affects pineal function in humans remains to be demonstrated. The two studies of menarcheal age in humans show the possibility of earlier menarche in some individuals exposed to fluoride, but no definitive statement can be made. Recent information on the role of the pineal organ in humans suggests that any agent that affects pineal function could affect human health in a variety of ways, including effects on sexual maturation, calcium metabolism, parathyroid function, postmenopausal osteoporosis, cancer, and psychiatric disease. SOURCE: National Research Council. (2006). Fluoride in Drinking Water: A Scientific Review of EPA’s Standards. National Academies Press, Washington D.C. p221-22. “In conclusion, the human pineal gland contains the highest concentration of fluoride in the body. Fluoride is associated with depressed pineal melatonin synthesis by prepubertal gerbils and an accelerated onset of sexual maturation in the female gerbil. The results strengthen the hypothesis that the pineal has a role in the timing of the onset of puberty. Whether or not fluoride interferes with pineal function in humans requires further investigation…” SOURCE: Luke J. (1997). The Effect of Fluoride on the Physiology of the Pineal Gland. Ph.D. Thesis. University of Surrey, Guildford. p. 177.

Should Infants Drink Fluoridated Water?

source

Summation Fluoride Exposure During Infancy:

In contrast to recommendations adopted in the 1950s, fluoride supplementation is no longer recommended for newborn children. This includes both fluoride in drops, and fluoride in drinking water.

Not only is fluoride ingestion during infancy unnecessary, it can also be harmful – as suggested by a mounting body of evidence linking fluoride exposure during the first year of life with the development of dental fluorosis. (For pictures of dental fluorosis, click here)

Because of the risk for dental fluorosis, and the lack of demonstrable benefit from ingesting fluoride before teeth erupt, the American Dental Association – and a growing number of dental researchers – recommend that children under 12 months of age should not consume fluoridated water while babies under 6 months of age should not receive any fluoride drops or pills.

Fluoridated drinking water contains up to 200 times more fluoride than breast milk (1000 ppb in fluoridated tap water vs 5-10 ppb in breast milk). As a result, babies consuming formula made with fluoridated tap water are exposed to much higher levels of fluoride than a breast-fed infant. (A baby drinking fluoridated formula receives the highest dosage of fluoride among all age groups in the population (0.1-0.2+ mg/kg/day), whereas a breast-fed infant receives the lowest).

Dental fluorosis is not the only risk from early-life exposure to fluoride. A recent review in The Lancet describes fluoride as “an emerging neurotoxic substance” that may damage the developing brain. The National Research Council has identified fluoride as an “endocrine disrupter” that may impair thyroid function, while recent research from Harvard University has found a possible connection between fluoride and bone cancer.

FLYER: Fluoride Warning for Infants

ACTION ALERT: Ask Wal-Mart to Stop Selling Fluoride “Nursery Water” to Babies

NEW! Health Alert Flyer (pdf file)

Articles of Interest Fluoride Exposure During Infancy:

Notable Quotes Fluoride Exposure During Infancy: (back to top)

“A major effort should be made to avoid use of fluoridated water for dilution of formula powders.”
SOURCE: Ekstrand J. (1996). Fluoride Intake. In: Fejerskov O, Ekstrand J, Burt B, Eds.
Fluoride in Dentistry, 2nd Edition. Munksgaard, Denmark. Pages 40-52.

“If using a product that needs to be reconstituted, parents and caregivers should consider using water that has no or low levels of fluoride.”
SOURCE: American Dental Association (2006). Interim Guidance on Reconstituted Infant Formula. November 9, 2006.

“[I]nfant formulas reconstituted with higher fluoride water can provide 100 to 200 times more fluoride than breastmilk, or cows milk.”
SOURCE: Levy SM, Guha-Chowdhury N. (1999). Total fluoride intake and implications for dietary fluoride supplementation.
Journal of Public Health Dentistry 59: 211-23.

“[P]arents of children using powdered infant formula should be warned by their medical practioners to use unfluoridated or defluoridated water to reconstitute the formula.”
SOURCE: Diesendorf M, Diesendorf A. (1997). Suppression by medical journals of a warning about overdosing formula-fed infants with fluoride.
Accountability in Research 5:225-237.

“Our analysis shows that babies who are exclusively formula fed face the highest risk; in Boston, for example, more than 60 percent of the exclusively formula fed babies exceed the safe dose of fluoride on any given day.”
SOURCE: Environmental Working Group, “EWG Analysis of Government Data Finds Babies Over-Exposed to Fluoride in Most Major U.S. Cities”, March 22, 2006.

“[M]ore than 50 percent of infants are currently formula fed by 1 month of age, and these infants are likely to be continuously exposed to high intakes of fluoride for 9 or 10 months – a circumstance quite rare in the 1960s and early 1970s.”
SOURCE: Fomon SJ, Ekstrand J. (1999). Fluoride intake by infants. Journal of Public Health Dentistry 59(4):229-34.

“Fluoride is now introduced at a much earlier stage of human development than ever before and consequently alters the normal fluoride-pharmacokinetics in infants. But can one dramatically increase the normal fluoride-intake to infants and get away with it?”
SOURCE: Luke J. (1997).
The Effect of Fluoride on the Physiology of the Pineal Gland. Ph.D. Thesis. University of Surrey, Guildford. p. 176.

‘[F]luoride exposure, at levels that are experienced by a significant proportion of the population whose drinking water is fluoridated, may have adverse impacts on the developing brainThe findings are provocative and of significant public health concern.”
SOURCE: Schettler T, et al. (2000). Known and suspected developmental neurotoxicants. pp. 90-92. In:
In Harms Way – Toxic Threats to Child Development. Greater Boston Physicians for Social Responsibility: Cambridge, MA.

“Infant foods mixed with water pose a special problemOne wonders what a 50-fold increase in the exposure of fluoride, such as occurs in infants bottle-fed with water-diluted preparations, may mean for the development of the brain and other organs… There is reason to be aware of the possibility that fluoride may affect the somatic and mental development of the child.”
SOURCE: Carlsson A. (1978). Current problems relating to the pharmacology and toxicology of fluorides.
Lakartidningen 25: 1388-1392.

“The entire Board holds serious concerns about the current fluoride exposure of infants between the ages of zero and six months. We deem this exposure to be a “significant public health risk”, and one that should be given immediate attention by the city and state.”
SOURCE: Burlington Board of Health (Vermont, USA) August 31, 2005. See copy of full report.

Fluoride Exposure During Infancy Fluoride Supplementation No Longer Recommend for Newborns: (back to top)