The Book Pregnant Earth Mother The Book

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Known About Fluoride
  Upper Intake Level
  Toothpaste Warning
  Interferes with Brain
  Fetal Vulnerability

Needs to Be Known
  Amniotic Fluid
  Crazy Advice
  Fluoride Drugs
  Premature Birth
  Infant Mortality
  Life Decay

Fluoridation 'Science'
  Bogus Sales Pitch
  CDC's Irrationale
  EPA's Pollutant
  PHS's Debunkery

The Book

In 1997, when safety thresholds of fluoride were established for children, health authorities ignored children in the womb – and continue to do so, despite growing evidence of fluoride's risk to the developing nervous system.

The CDC's Tolerable Upper Intake Level
of Fluoride and Children in the Womb

When a pregnant woman consumes fluoride, so does her unborn child. Research shows that fluoride levels in fetal blood can be more than twice as high as cord blood and 25% higher than maternal levels. This happens because fluoride in amniotic fluid also enters into fetal circulation (like alcohol does).

The CDC's safety threshold for fluoride intake was determined by the Institute of Medicine (IOM, 1997). For children under 9 years old, their "Tolerable Upper Intake Level" (UL) of fluoride is 0.10 mg/kg per day.

What about children in the womb? The IOM did not estimate a fetal UL, but said it would be "significantly lower" because "sensitivity increases due to active placental transfer, accumulation of certain nutrients in the amniotic fluid, rapid development of the brain."

A fetal UL "significantly lower" than the 0.10 mg/kg/day for children would reasonably be at least a fifth of that: 0.02 mg/kg/day. This is comparable to the fluoride intake of fetuses whose mothers drink fluoridated water throughout the day, as they are advised to do.

Eight cups of US tap water "optimally" fluoridated at 0.7 mg/l contains 1.33 mg of fluoride. About 85% of the ingested fluoride is absorbed, so 1.13 mg enters the bloodstream. Late in the third trimester, the fetus who weighs 3 kg is 5% of his mother's weight (60 kg). If that fluoride is evenly distributed, then the fetus takes in 5% of 1.13 mg = 0.056 mg of fluoride.

The fetal fluoride intake level (0.056/3) = 0.019 mg/kg.

This suggests that in communities where tap water is fluoridated, children in the womb are being exposed to fluoride at their Tolerable Upper Intake Level. "This would represent a very serious population risk of adverse effects," said the IOM. "A population mean intake at the UL suggests that a large proportion (as much as half) of the population is consuming levels above the UL."

A very serious population risk of adverse effects

Fluoride intake levels must now be determined for children in the womb. Since ULs were established in 1997, the EPA's Neurotoxicology Division has found substantial and increasing evidence that fluoride is a developmental neurotoxicant in the same category with lead and alcohol. "It is apparent that fluorides have the ability to interfere with the functions of the brain and the body by direct and indirect means."

And last year a major study (Bashash et al. 2017) funded by the National Institutes of Health confirmed that higher levels of fluoride in pregnant women are associated with lower IQs in their children. The 12-year study was conducted largely by specialists in the field who did similar studies on other neurotoxicants.

In March 2018, the authors further concluded:
"Our findings add to our team's recently published report on prenatal fluoride and cognition at ages 4 and 6-12 years by suggesting that higher in utero exposure to fluoride has an adverse impact on offspring cognitive development that can be detected earlier, in the first three years of life.

In light of of this new evidence, telling pregnant women to consume
fluoride in water or in supplements is a human rights violation.
Worse, it is human experimentation.

Tolerable Upper Intake Levels of Fluoride are
Based on Developmental Defects in Teeth, Not the Brain

In 1997, the Institute of Medicine selected "moderate enamel fluorosis" as the critical adverse effect for infants and children: "This is regarded as a cosmetic effect rather than a functional adverse effect." (IOM 2000, Table 6-1.)

In other words, if you look into a kid's mouth and can see that fluoride has only mildly damaged the hardest substance in the body, then her brain has nothing to worry about.

Saying dental fluorosis is the critical adverse effect of swallowing fluoride all day, is like tobacco promoters claiming that the only problem of smoking a pack of cigarettes a day is the yellowing of your teeth. Hey, it's just cosmetic. Your denti$t can fix that.

The IOM did not consider the fetal brain, despite the fact that defects in tooth enamel have been correlated with impaired brain development. (See Developmental Defects Increase with Fluoride Levels in Water in Pregnancy and Fluoride Do Not Mix.)

'Health' authorities need to pull their head out of the 20th century.
Stop discriminating against and overdosing children in the womb.

The words fetus or fetal are not mentioned in any of the seven pages cited in the CDC's main fluoridation page. The only mention of pregnancy: "Use of fluoride supplements by pregnant women does not benefit their offspring."

The CDC has also failed to report the association between fluoridated water and premature birth, even though the agency has stated that preterm birth is "the leading cause of long-term neurological disabilities in children."

CDC's Fluoridation Irrationale