Books on Vitamin D
Vitamin D Supplements
Vitamin D Facts
Vitamin D and Your Teeth
By Dr. Mercola
Studies have linked geographical variations in dental health and tooth
loss to sun exposure.
Dental caries has been shown to be inversely related to mean hours of
sunlight per year, with people living in the sunny west having half as
many cavities as those in the much less sunny northeast.
As reported by
the Vitamin D Council:
"There were also several studies reported on vitamin D and dental caries
in the 1920s and 1930s. May Mellanby and coworkers in Sheffield,
England, did studies on the role of vitamin D on teeth in the 1920s.
The first experiments were with dogs, where it was found that vitamin D
stimulated the calcification of teeth. Subsequently, they studied the
effect of vitamin D on dental caries in children, finding a beneficial
Additional studies were conducted on children in New York regarding
dental caries with respect to season, artificial ultraviolet-B (UVB)
irradiance, and oral intake of vitamin D with the finding that it took
800 IU/day to prevent caries effectively."
Two proposed mechanisms causing this beneficial effect include:
Vitamin D beneficially affects calcium metabolism, and
Vitamin D, which is produced in your body in response to sunlight
exposure, induces cathelicidin, an antimicrobial peptide, which attacks
oral bacteria linked to dental caries
According to the Vitamin D Council:
"Use of vitamin D appears to be a better option for reducing dental
caries than fluoridation of community water supplies, as there are many
additional health benefits of vitamin D and a number of adverse effects
of water fluoridation such as fluorosis (mottling) of teeth and bones.
... Serum 25-hydroxyvitamin D concentrations around 30-40 ng/ml (75-100
nmol/L) should significantly reduce the formation of dental caries. (The
average white American has a level near 25 ng/ml, while the average
black American has a level near 16 ng/ml.)"
Oral Health, Heart Disease, and Vitamin D
As you probably know, many public water supplies around the US are
fluoridated, allegedly to help prevent dental caries. However, there's
overwhelming evidence showing that ingesting fluoride is NOT the way to
protect your teeth. On the contrary, fluoride is a potent toxin, and
over 40 percent of American children and teens are showing signs of
fluoride overexposure in the form of dental fluorosis—unsightly yellow
or brown spots or mottling on their teeth.
Fluoride consumption has also been linked to a long list of other health
The idea that vitamin D may help protect against cavities is very
interesting, and actually makes loads of sense since we already know it
is necessary for bone health. Vitamin D also upregulates a specific gene
that produces over 200 anti-microbial peptides, some of which work like
broad-spectrum antibiotics, including cathelicidin that attacks oral
It's also interesting to note the connections between oral health, heart
health, and vitamin D status.
For example, gum disease increases your risk of several other serious
diseases, including, pneumonia, lung disease, diabetes and stroke—and
vitamin D deficiency has also been linked to an increased risk of all of
these conditions! This is a beautiful illustration of the
interdependency between seemingly disparate systems within your body.
The Best Source of Vitamin D
Exposing your skin to sunlight is the best way to get vitamin D as this
will also produce vitamin D3 sulfate, which I discussed earlier. As a
general guideline, getting about 15 to 20 minutes of sun exposure a day,
with at least 40 percent of your skin exposed, will boost the vitamin
levels above 40 ng/ml in many. However, this is highly variable and
dependent on a number of factors, including your skin color, location
and altitude, for example. If you're able to get out in the sun for an
adequate time period each day, your vitamin D levels should be naturally
If you can't get enough sun exposure during certain parts of the year, I
advise using a safe tanning bed to allow your body to produce vitamin D
naturally. Safe tanning beds have electronic ballasts and produce less
UVA than sunshine.
A third option is taking a high-quality vitamin D supplement. The most
important thing to keep in mind if you opt for oral supplementation is
to use natural vitamin D3 (cholecalciferol) only. Do not use the
synthetic and highly inferior vitamin D2. Unless you get a deep dark
tan, it is wise to get your blood levels checked as that is the only way
to know for certain you have reached therapeutic levels. To determine
the appropriate dose, you need to get your vitamin D levels tested.
Ideally, you'll want to be between 50-70 ng/ml. Based on recent research
published by Grassroots Health from the D*Action study, the average
adult needs to take 8,000 IU's of vitamin D per day in order to elevate
their levels above 40 ng/ml, which they believe is the bare minimum for
Books on Vitamin D
Vitamin D Supplements
Reduces Risk of Diseases
Vitamin D influences more than 200 genes. This includes genes related to
cancer and autoimmune diseases like multiple sclerosis.
Vitamin D affects your DNA through the vitamin D receptors (VDRs), which
bind to specific locations of the human genome.
Osteoporosis facts and
prevention for women and men
To prevent osteoporosis weight lifting, resistance training, and getting
calcium and vitamin D is crucial.
D Battle - Recent government recommendations have increased the
daily recommended guidelines for vitamin D, but still some doctors argue
for higher daily intakes.
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