Health Hazards Of Mercury by Eric Davis DDS
In Greek mythology, Mercury is the
fleet-footed messenger of the Gods.
He was the cleverest of the Olympians, patron
of translators and interpreters.
He ruled over wealth, good fortune, commerce,
fertility. . . and thievery.
He brought the souls of the dead to the underworld, and was honoured as a god of sleep.
As a physical substance in the living organism,however, mercury is the antithesis of the fleet-footed messenger’s finer qualities.
In the body, mercury disrupts cellular
function at all levels, robbing the body of
health and escorting the victim to the
underworld of neurological dysfunction.
Mercury is a powerful poison.
Published research has shown that mercury,
even in small amounts, is more toxic than
lead, cadmium and even arsenic.
Some of the most common signs and symptoms of
mercury exposure include irritability, fits
of anger, lack of energy, fatigue, low selfesteem,drowsiness, decline of intellect,
low self-control, nervousness, memory
loss, depression, anxiety, shyness/timidity
and insomnia.
MERCURY, THE ELEMENT
Mercury is a dense liquid metal
that gives off a colorless, odorless,
tasteless vapor at relatively low temperatures.
The three most commonly encountered
forms are the vapor form (Hg), the
ionic form, (Hg2+) and the organic family
of forms, principally methyl mercury (Cl-
Hg0-CH3).
Each has its own effects,routes of bsorption and tissue specificity.
1.
In spite of its well recognized
toxicity, mercury in its various forms is
released into the environment at the rate of
11,000 tons annually, supposedly for the
“benefit” of mankind.
Cinnabar (mercuric sulphite), for instance, continues to be used for red pigment in many tattoo salons;
calomel (mercurous chloride) is a common
treatment for diaper rash;
mercury vapour lamps provide enhanced indoor and outdoor lighting;
and elemental mercury has many uses including thermostat regulation and the manufacture of plastics,mirrors and thermometers.
Although a natural component of
the earth’s crust, mercury does not have a
role in the human body.
Yet humans are constantly exposed to mercury, primarily through large fish (terrestial animals are negligible sources),
2.
thimerosol (a preservative added to vaccinations and many other pharmaceuticals) and “amalgam” or mercury-based dental fillings.
Adverse health effects, particularly of a
neurological nature, have resulted from
low exposure levels, especially to the
foetus in pregnant women.
Mercury vapor released from
mercury dental fillings is absorbed very
rapidly and thoroughly by your body,
primarily by inhalation and swallowing.
3.
This elemental mercury also adds to the
environment in significant amounts when
dental wastes are not disposed of properly,
4. and through cremation, which
vaporizes the mercury in the amalgams.
Although crematoriums now often use
mercury vapor collectors to prevent this,
they are not mandatory.
Mercury vapor collectors are also used in some dental surgeries but a better solution is the immediate cessation of the use of amalgam fillings.
Mercury released into the atmosphere
is indestructible; it merely hides or
changes its form, being truly fleet-footed.
Mercury is incorporated into the food
chain as methyl mercury, primarily
through the action of bacteria and other
microbes transforming elemental or
inorganic forms.
Even mercury from amalgams is readily methylated by bacteria in the mouth.
5.
Organic mercury is the most deadly of the mercury compounds,probably due to its ability to enter the cells almost effortlessly.
Within the cell it can destroy the various components selectively or in total by releasing lysosomes, damaging DNA and by
rupturing the cell membrane.
Its effects upon the neurological and reproductive system have been extensively documented.
6.
Methyl mercury accumulates in
living organisms because it has a strong
affinity for protein sulfhydryl groups.
As lower-order organisms are eaten by higherorder organisms, the mercury concentration is increased along the food chain.
7.
This process of accumulation at each trophic
level is called biological magnification. As
humans are at the highest trophic levels,
mercury can have a very destructive effect
on individuals and on the entire gene pool.
8.
Most poison molecules that enter the
body are processed by the liver or kidney
and broken down into smaller components,
then excreted in relatively less toxic forms
than they were originally.
Heavy metals are different. They cannot be broken down, so unless they are excreted immediately after they are ingested, these absolutely indestructible elements accumulate and continue as a source of potential damage.
The toxicity of mercury came into
world prominence in the 1950s as a result
of mercury dumping in the Minamata Bay
in Japan.
Consumption of seafood from the bay led to widespread neurological damage and teratogenic effects.
After all the cats in the neighbourhood died—some found committing suicide—and birds
began falling from the sky, the government
began an investigation.
They brought in new cats and followed them around to see what was killing them. Even when the source was known—the bay and subsequently the wildlife there—the chemical
plant continued to pollute and fishermen
continued to sell their catch.
By 1997,2,200 people were certified as having
Minamata disease and qualified for
compensation. More than 8,000 suffered
from some degree of physical and psychological symptoms, such as muscle and
joint pain, forgetfulness, memory loss,
fatigue and tremors.
9,10
MERCURY HOT SPOTS
Scientists investigating mercury buildup
in wildlife have looked closely at two
locations where mercury concentrations
are particularly high: the Mediterranean
basin and the island of Madeira in the
Atlantic.
Marine animals found in the
Mediterranean Basin have high mercury
concentrations compared to similar
By Eric Davis, DDS This article was first published in
Wise Traditions, the quarterly magazine of The Weston A. Price Foundation,
Washington, DC, www.westonaprice.org, (202) 333-HEAL.
HEALTH HAZARDS of M E R C U R Y M E R C U R Y
Hg2+ does indeed accumulate in the
body from the metallic mercury vapor
given off by dental amalgam fillings.
In addition, methyl mercury, the highly
toxic organic compound, can be formed
from inorganic mercury by the action of
bacteria in the mouth.
A study carried out by M. J. Vimy
in 1990,13 brought to light the highly
absorbable nature of mercury out-gassed
by amalgam fillings.
He placed twelve occlusal amalgams contain-ing radioactively tagged mercury (that does not occur in nature) in the molars of pregnant sheep.
Radioactivity mea-surements determined
that by the third day mercury was found in
the amniotic fluid and foetal blood, and
that by the 26th day most foetal tissues
(especially the liver, bile, bone marrow,
blood and brain) had a higher mercury
level than that within three days found in
maternal tissues.
During lactation mercury levels in the milk were eight times greater than those in the maternal blood serum,thereby causing great risk of mercury
SYMPTOMS OF MERCURY TOXICITY
1. LOCAL ORAL CAVITY:
Excessive salivation; metallic taste; swollen tongue with scalloped edges; periodontal disease; bleeding gums; stomatitis; loosening of teeth; foul breath; white patches in mouth; bone loss around teeth; ulcers of gums, palate,tongue; burning of mouth; gum pigmentation.
2. PSYCHOLOGICAL:
Irritability and unreasonable anger; inability to make decisions;
insomnia; lack of concentration; low self-confidence; drowsiness; decline of intellect;
low self-control; nervousness; memory loss; depression; anxiety; shyness /timidity.
3. NEUROLOGICAL:
Headaches, including migraines; tremors (hands, feet, eyelids,tongue); muscular weakness; diffuse myalgia (muscular rheumatism); tinnitus (ringing in
the ears); paraesthesia (abnormal skin sensations); impaired visual fields and visual
acuity; depression; memory loss.
4. CARDIOVASCULAR AND RESPIRATORY:
Tachyarrhythmia (irregular heart beat);
chest pain; changes in blood pressure; feeble or irregular pulse; pain or pressure in
chest; persistent cough; emphysema; shallow or irregular breathing.
5. GASTROINTESTINAL:
Abdominal pain (often mimicking ulcers); colitis; constipation;
diarrhoea; irritable bowel.
6. IMMUNOLOGICAL:
Allergies; rhinitis; swollen lymph nodes in neck; asthma;sinusitis.
7. ENDOCRINOLOGICAL:
Chronic fatigue; subnormal temperature; excessive
perspiration; edema; weight loss; cold, clammy hands and feet; muscle weakness;
hypoxia (oxygen deficiency in the tissues); loss of appetite; joint pain; thyroid dysfunction;infertility.
8. URINOGENITAL:
Frequent urination; night urination; loss of libido.
9. INTEGUMENTARY:
Unexplained rashes.mercury forms a monatomic gas that is highly volatile and readily inhaled.
12
Whether inhaled from an industrial process
or from mercury amalgam fillings,mercury vapor is readily absorbed across the pulmonary membranes.
It then dissolves in plasma, persisting as a
dissolved gas for a period sufficient to
cross most of the diffusion barriers in the
body including the blood-brain barrier.
Once it enters cells, whether the
brain or red blood cells, or any other
body cell, mercury un-dergoes an
oxidation reaction to the inorganic ionic
form—often referred to as divalent
mercury (Hg2+).
Through this route MERCURY - Special Feature
species from most parts of the Atlantic
because of the natural presence of mercury
from volcanic activity.
About half of world mercury resources are located in the Mediterranean area.
11
Mining in the area has increased the release of mercury into the environment.
The process of biomagnification in the
Mediterranean basin is evident. High
levels of mercury are found in Mediterranean
tuna compared to similar species in
most parts of the Atlantic, as well as in
smaller species such as anchovy and
sardines, and also in local marine birds
and their eggs.
An investigation of fishermen and their families in coastal villages on the north Tyrrhenian Sea found a correlation between the number of seafood meals and the mercury levels from hair samples.
Those consuming one or fewer seafood meals per month averaged about 1 mcg/g while those who consumed four or more seafood meals per
week had an average of 36 mcg/g.
Levels over 50 mcg/g of mercury in hair were
found in a few fishermen, who then
underwent a cytogenetic monitoring study
to evaluate DNA damage.
A positive correlation was found between mercury concentration in blood and chromosomal aberration, findings that have been confirmed by several authors.
A study of women in the village of
Camara de Lobos in the island of Madeira,
where sea currents cause a concentration of
mercury in local sea life, found that average
values of total mercury in hair and blood
were about 10 mcg/g and 32 mcg/L respectively.
These levels have been associated
with risk for fetal brain development.
MERCURY FROM AMALGAMS
The largest exposure to mercury among
adults comes comes from a source that is
completely avoidable—amalgam fillings—
primarily in the form of vapor of
metallic, elemental mercury.
Elemental exposure to the neonate. Even after the 73rd day the mer-cury level in the foetal tissues was still rising, prompting Vimy’s team to conclude that placing amalgam
during pregnancy unquestionably places
the foetus at undue risk and endangers the
health of our children.
Vimy also found that the labelled
mercury concentrated within three days in
the sheeps’ kidneys and caused a significant
reduction in the glomerular filtration
rate.
In a second animal study of monkeys,
whose digestive tract is much more
closely related to that of humans, a team
of microbiologists from the University of
Georgia working with Vimy found that
mercury from dental amalgam promoted
the development of mer-cury-resistant
bacteria in both the mouth and in the
intestine, a finding of far-reaching significance.
14
MERCURY IN BREAST MILK
Studies carried out during the mid 1990s
found a correlation between the mercury
concentrations in the kidneys of newborn
babies and the number of amalgam fillings
of the mother.
15
As a result, the Federal Institute of Medicines and Medical Products (an agency of the German government) officially advised against the use of amalgam as a filling material during pregnancy and breast feeding.
16
These studies found that the mercury
concentration in the urine of pregnant and
lactating women positively correlated with
the number and surfaces of amalgam
fillings and with frequency of fish consumption.
17
Levels of mercury in breast milk taken at day 2 of lactation also depended on the number and surfaces of amalgam fillings and with frequency of fish consumption.
Mercury levels in the second breast milk sample, taken after two months of breastfeeding, were found to depend
only on fish consumption.
Investigators believed the lower concentrations of mercury in the milk at 2 months were due to higher amounts of milk being produced.
Mercury is excreted predominantly
in the faeces, but also in sweat and urine.
Five percent will be excreted in breast
milk.
By the time of parturition, a baby’s
levels can be 30 percent higher to 100
percent higher than that of the mother.
Mercury passes readily across the placenta,
and binds to the red blood cells and
tissues in the foetus.
Since the foetus is not sweating, making bile or having bowel movements, the mercury accumulates.
Also, foetal haemoglobin has a greater
affinity for mercury than the mother’s
haemoglobin.
18
On January 12, 2001, the FDA press
office released a statement advising
pregnant women, women of childbearing
age who may become pregnant, nursing
mothers, and young children not to eat
shark, swordfish, tilefish and king mackerel.
The statement also warned against
two servings of any other fish per week.
Government agencies in Australia and
New Zealand have issued similar recommendations.
The FDA report cited swordfish that
routinely tested over the 1 mcg/g “action
level,” above which fish should not be
sold. Some swordfish contained greater
than 3 ppm of mercury.
Thus, the EPA and FDA advises expectant mothers to reduce or eliminate their intake of seafood due to the possibility that the amount of methyl mercury contained in fish might adversely affect their unborn offspring.
The question is, why aren’t the EPA and FDA clamoring for the elimination of mercury amalgam restorations—a much greater source of
mercury than swordfish—at least in
pregnant women, women of child bearing
age and children?
As long ago as 1991, a panel of experts convened by the World Health Organization determined that mercury amalgam fillings were the primary source of mercury exposure in the non-occupationally exposed population.
19
THIMEROSAL
In spite of well-established health risks,
organic mercurials are still added to
prescription and non-prescription drugs,
such as medicines for haemorrhoids
(Preparation H), as well as in formulations
for the treatment of bacterial and fungal
infections.
Because mercury has antifungal properties, it is used in indoor paints.
20
Until recently, nearly all contact lens
solutions contained thimerosal as an
antibacterial agent.
Thimerosal is ethyl mercury, an organic mercurial (sometimes called merthiolate).
In some patients,thimerosal caused visible accumulation of mercury in the retina and chronic eye irritation.
In a few highly sensitive people,
the mercury-based additive caused loss of
sight.
Nevertheless, manufacturers
continued to add it to contact lense
solution for many years.
The ban on thimerosal in contact lens solutions did little to eliminate its use in other products,such as eardrops and nose drops.
Thimerosal continues to be used today in a
variety of health-related products: for
preserving vaccines and intramuscular
injections, cosmetics, and some drugs that
must be kept in solution.
It is the thimerosal used in childhood
vaccines that gives the greatest cause for
concern.
Investigators evaluating doses of
mercury in the form of thimerosal used as
a preservative in childhood immunizations
found that they exceeded US federal
safety guidelines.
The analysis showed increased risks for neurodevelopment disorders, autism and heart disease with increasing exposure to thimerosal in vaccines.
The US Environmental Protection Agency (EPA) safety of exposure standard is .1 microgram per kilogram of body weight per day equating to 7 micrograms for a 70 kilogram adult.
Fully vaccinated children receive as much as
237.5 micrograms of mercury from
vaccines in doses of up to 25 micrograms
each.
According to studies carried out by
the research team of Geier and Geier,
thimerosal in a single vaccine greatly
exceeds the EPA adult standard.21
The epidemiological evidence is
compelling and statistically conclusive.
Geier and Geier found that the prevalence
of speech disorders, autism and heart
arrest was a function of the mercury dose
that the children received.
Autism is now epidemic in the United States, rising from 1 in 2500 children in the mid 1980s to 1 in about 300 children in 1996.
There has been a steady increase to the childhood vaccination schedule since the late1970s.
MERCURY AND HEART DISEASE
Mercury exposure may also contribute
to heart disease in adults. In a study
involving over 1000 men aged 42-60,
the “The Kuopio Ischemic Heart Disease
Risk Factor Study” (KIHD),
researchers from the University of
Kuopio, Kuopio, Finland, noted that
lipid peroxidation and excess risk of
myocardial infarction (MI) could be
best related to high mercury levels in the
hair.
22
At the four-year follow-up point
of the KIHD study, the same research
team noted that high hair mercury levels
were related to increased arterial wall
thickness and growth in the carotid
arteries.
23
The team concluded: “Accumulation
of mercury in the body is associated with accelerated atherosclerotic progression in men.”
A CASE HISTORY
I have a busy, biologic dental practice in
the Queensland area of Australia, which
specializes in patients suffering from
mercury toxicity.
The typical patient is a female with numerous dental amalgams in her mouth and who has followed the advice of the Australian Heart Foundation, consuming
a low-protein, low-fat, low-cholesterol
diet that includes fish as the chief animal
food, often eaten several times per week.
Nervanne was such a patient. She originally consulted our practice in November of 2001 with a multiplicity of symptoms including migraines three times per week; tremors (both internal and visible external) with associated tingling in the hands and feet; poor memory and decline of cognitive function; chronic unrelenting fatigue and depression; tinnitus; painful joints; night urination; a metallic taste in her mouth; and abdominal bloating with a history of diarrhoea and now constipation.
She was also on thyroid medication due to a bout of autoimmune thyroid disease, and suffered recurrent yeast and bacterial infections.
An MRI revealed no sign of angiopathy in the
carotid and vertebral arteries but did
reveal evidence of deep white matter
disease, demyelination and possible
multiple sclerosis.
Nervanne had many mercury amalgams
and gum disease as revealed by bleeding
upon flossing and oral examination. She
also had three root-filled teeth, one with
obvious apical pathology.
Her children suffered from dental malocclusions and attention behavioral problems. One of her sons was autistic.
DETOXIFICATION
The body deals with toxins in a very
ordered fashion:
sProtective barriers and secretions
(skin, sImmunologically (inflammation,
immunoglobulin response)
sBiotransformation (activation of
cytochrome P450 enzyme detoxification
systems)
sRaising blood lipids (HDL, LDL and
VLDL cholesterol and
tryglycerides.)24,25
By doing a comprehensive blood
chemistry, based on the principles of Free
Radical Therapy,26 we can gain a fairly
accurate idea of which toxin or combination
of toxins we are dealing with, where
the toxin is located, how much is there and
how it is being transported, and thereby
gain some idea of how best to neutralize
the toxins and get them out.
The protocol we use to help the patient get
rid of mercury is a multi-step process.
The first step involves changing the diet to
enhance the body’s ability to handle
contaminant materials.
The next step adds specific supplementation and chelation therapy.
We then do a comprehensive survey
of the mouth to determine the best order for
removal of amalgams and the most compatible
type of dental material with which to
replace them.
Only then do we proceed with the removal of amalgam fillings.
Upon examining Nervanne’s blood
results the following findings were of
particular interest: her total serum cholesterol
was very low at 150 mg/dl with
HDL-cholesterol at 48 mg/dl; and her
total protein and albumin levels were low,
the globulin was high normal.
Nervanne’s total cholesterol, HDLcholesterol
and total protein levels had
never before been this low.
So I asked her what sort of dietary regimen she had been following.
Nervanne had not eaten eggs,red meat or dairy products (except skim AVERAGE DAILY INTAKE OF MERCURY PER SOURCE
Dental amalgam fillings (mercury
vapor), according to the American
Dental Association
1.0-2.0 mcg/day
Dental amalgam fillings (mercury
vapor), according to the World
Health Organization
3.0-17.5 mcg/day average
10 mcg/day extreme
100 mcg/day
Fish (methylmercury)
2.4 mcg/day
Non-fish food (inorganic mercury)
0.3 mcg/day
Air, water and food
3.09 mcg/day absorbed
2.26 mcg/day
Other sources negligiblesweating,
making bile or having bowel
movements, the mercury accumulates.
Also, foetal haemoglobin has a
greater affinity for mercury than
the mother’s haemoglobin.18
MERCURY - Special Feature
milk or soy milk on her cereal) for several
years prior to her devastating decline in
health.
She had reduced her diet to salads,
pasta, fruits, an occasional serving of
skinless chicken and frequent canned tuna
due to convenience and her desire to
increase her omega-3 intake.
She regularly consumed “cholesterol-free” crackers with margarine and “lite” cheese as a snack.
She also consumed many other sources of
trans fatty acids—margarine, pastries,
breads, cereals and chocolate.
Did Nervanne’s health fail as a result of
her new eating habits, or was it mere
coincidence that her recent health decline
followed the adoption of an extremely
low-fat, low-cholesterol, low-animalprotein
diet?
I believe it was the latter and
the scientific literature confirms my
beliefs.
Nervanne’s reduction in cholesterol and
total serum protein had made her vulnerable
to bacterial and viral infection by
promoting T-cell suppression.
This is especially so in the presence of mercury,which has been shown to reduce resistance to viruses, cancer and autoimmune
disease.
27,28
Low levels of cholesterol
also make T-cell proliferation more
difficult,29,30,31,32 and the excretion of
mercury nearly impossible.
The onset of emotional depression and
irritability is frequently reported in people
who suddenly lower their cholesterol
levels.
These symptoms have occurred in all of the longer-term studies on cholesterol lowering, but rarely do physicians link their patients’ depressive symptoms with the sudden change in diet or cholesterol
level.
Neurotoxins are transported throughout
the body attached to protein components
of lipoproteins, and therefore require
cholesterol for their transport and elimination.
These neurotoxins also have a strong
affinity for lipoidal tissue of the nervous
system and brain.
A rise in cholesterol levels and triglycerides in response to
neurotoxins protects by preventing
permanent attachment of the neurotoxin to
the nerve and brain cells.
Symptoms of neurotoxicity are most likely to occur when the cholesterol is lowered suddenly or when the affected patient goes on a low-fat, low-cholesterol, low-protein diet.
In a human trial, a high-protein, lowcarbohydrate diet was compared to a lowprotein, high-carbohydrate diet.
The researchers found greater clearance of
toxins with the high-protein, low-carbohydrate diet and diminished clearance when the ratio was reversed.
33,34 To utilise the protein correctly, the fat on the “lamb” needs to be eaten.
The use of additional butter or lard in cooking is of paramountimportance.
By having adequate fat, bile production is stimulated, absorption of minerals increased and the excretion of mercury facilitated as long as constipation is avoided.
In my practice, I have found that people
who are sturdy in structure recover more
quickly and have less reactivity during
their treatment, compared with people
who are extremely thin or who lose the
most weight or undergo ill-advised fasting
procedures concurrently while having
been exposed to toxins such as mercury.
35
This observation is supported by recent
studies published in the Journal of
Obesity.
36
A correct cholesterol response is
fundamental to move mercury and other
neurotoxins to sites where they can be
excreted.
A Danish study of 50,318 users
of statin (cholesterol-lowering) drugs
revealed a higher risk of peripheral
neuropathy related to the percentage of
drop in total cholesterol.
In other words,lowering cholesterol increases risk of reactivity to nerve toxins 37 resulting in pain, paraesthesia, numbness and demyelinating effects.
Six additional studies since 1994 have indicated the same rise in polyperipheral neuropathy symptoms for users of statin drugs,38,39,40,41,42,43 supporting our clinical findings that low cholesterol levels in the presence of a potent neurotoxin such as mercury found
in amalgam fillings or any other source, is
a recipe for disaster.
Nervanne’s history was characteristic of this pattern.
THERAPY
Our treatment for Nervanne involved a
radical change in her diet followed by the
careful removal of her amalgam fillings
(as well as her root-filled teeth). Proper
diet is fundamental to clearing toxins, as
well as to regaining the best of health.
We advised Nervanne to eliminate tuna
and other seafoods from her diet, but to
incorporate a variety of meats, eggs and
whole milk dairy products.
The only seafood allowed is cod liver oil to
provide vitamins A and D.
Protein deprivation has been shown to
decrease the liver content of several of the
cytochrome P450 enzymes, the enzyme
system the body calls upon to remove
toxins.
44 Mercury also blocks the P450
system.
45 Trans fats also interfere with
the P450 detoxification enzyme system,
according to research carried out by Dr.
Mary Enig, so these must also be eliminated
from the diet.
46 The proteins in the diet must be animal
proteins, providing a complete specturm
of amino acids. A study of Asian vegetarians
with incomplete amino acid intake
showed reduced clearing of xenobiotics.
47 Low levels of hydrochloric
acid have an adverse impact on the
availability of dietary amino acids, even
in a higher protein diet, so stimulating
the pancreas using lacto-fermented foods
is crucial.
Our protocol makes the use of
cultured dairy products rich in whey
protein. Not only will whey provide the
complete protein needed for metabolization of xenobiotics and mercury, it has also been shown to increase glutathione content in the
liver.
48,49 We recommend sheep’s milk
yoghurt, rich in lauric acid, whey and
glutathione.
By April of 2002, Nervanne’s migraines
had completely ceased and her
gastrointestinal symptoms had abated.
For the first time in many years, she can string a sentence together without stuttering.
Her inability to cope, internal irritability and feelings of helplessness had resolved and
she was now able care for her family and
support her husband’s efforts.
The children’s behaviors were also improving and the parents were ready to commence a
program for the child with autism.
CONCLUSIONS
Most individuals can protect themselves
against mercury by avoiding unnecessary
exposure. That means using only composite
dental fillings—never amalgam—and
avoiding vaccines and pharmaceuticals that
may contain thimerosal.
Occasional fish consumption is fine in a healthy person who also consumes a diet rich in animal protein and fat, but tuna, swordfish and larger predatory species should be consumed only on rare occasions.
The pregnant and nursing woman
represents a special case. The foetus has
no way to eliminate mercury that may
cross the placental barrier and is therefore
very vulnerable.
It has been clearly documented that mercury in the developing infant and foetus can lead to permanent and irreversible brain damage.
Thus,it is highly recommended that all amalgam fillings be removed before conception and imperative that none be put in place during pregnancy and lactation.
Pregnant and lactating women should avoid
consumption of tuna, swordfish and
similar species completely. RH-negative
women should insist on vaccines that are
thimerosal-free.
Many unnecessary uses of
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mercury combined with the burning of
coal and other fossil fuels (the most
significant source of air-borne mercury)
can contaminate our food chain and
pollute our environment to an extent
that threatens the health of everyone.
Mercury is the most toxic of the heavy
metals. Thus, if we are to protect our
own health as well as that of future
generations, it’s imperative that we and
the scientific community pass legislation
soon at the state, local, federal and
international levels for reducing or
halting the indiscriminate use of mercury
in all of its various forms; especially
the conscious act of implanting
mercury directly into people like you
and your child by using mercury dental
fillings and mercury-containing
vaccines.
Dr Davis is principal physician of a
large and busy dental practice and is well
known in the Health Care Industry as a
leader in the field of Biological Dentistry.
Dr Davis is also the clinical director of
Nutrition Diagnostics.
He has pursued MERCURY - Special Feature
post-graduate studies in the areas of
clinical nutrition, medical acupuncture,
neural therapy, homotoxicology and
electro-acupuncture.
He was a founding member and past president of the Australian Society of Oral Medicine and Toxicology.
In 1996 Dr. Davis was made a fellow
of the Australian College of Nutritional
and Environmental Medicine.
He has lectured in the areas of Biological Dentistry and Nutrition both nationally and
internationally. Visit his website at
www.ericdavisdental.com.
Health Hazards Of Mercury


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