Vitamin D - How Much Should I Take?

The scientific community has become increasingmoderate exposure to the sun. The key word
more interested in the role that vitamin D plays inhere is moderate. Those of you, who walk around
maintaining health. I have been following nutritionalbrown as a berry all year long, are far beyond
research for the past thirty five years, but I havethe moderate level. We may have evolved
never seen such a deluge of research on anyenough to live in peaceful coexistence with the
nutrient as I have with vitamin D. Thissun, but all bets are off when the exposure
hormone-like vitamin, once thought to be usefulbecomes excessive.
only for proper bone development, has of lateAccording to prominent researcher Dr. Marc
received serious scientific investigation. Much ofSorrenson, the misguided policies of governmental
the research has centered on the vitamin D'sagencies, the medical community and the
extensive health benefits. This hormone-likepharmaceutical industry have compromised the
vitamin is essential to the functioning of morehealth of the Americans. His latest book, Vitamin
than 2,000 of our 20,000+ genes. There is aD3 and Solar Power for Optimal Health, is a
growing body of evidence that suggests yourcomprehensive review of the health benefits of
chance for optimal health is far greater if yousolar UVB exposure and vitamin D.
have adequate levels of vitamin D.We have been programmed to believe that sun
A considerable amount of the vitamin D researchexposure causes skin cancer and melanoma. In his
focuses on how this key vitamin influences overallbook, Dr. Sorenson convincingly explains, that by
health. However, these epidemiological studiesavoiding exposure to the sun, you will significantly
have uncovered a torrent of vitamin D deficiency.increase your risk for all types of cancers,
Depending on which report you see, somewhereincluding melanomas. If you want the truth about
between 50% and 75% of Americans do notthe importance of solar UVB and vitamin D to
have adequate levels of vitamin D. In these times,optimal health, you must read Vitamin D3 and
with all of the breakthrough technology andSolar Power for Optimal Health.
nutritional information we possess, could it beBecause of the emerging research on vitamin D,
possible that a large portion of the population isthe importance of dietary supplements is finally
lacking in this nutrient? The answer is yes.taking a well-deserved spotlight. Taking
The statistics are shocking, but understandablysupplemental vitamin D is a safe and effective
true. There are few foods that have significantway to enhance your vitamin D serum levels.
amounts of naturally occurring vitamin D. UnlessRemember, you cannot eat your way out of
you are eating salmon, mackerel, sardines, or tunavitamin D deficiency, but if you are like me and
daily, you are not getting adequate amounts oftake a tablespoon of cod liver oil daily and spend
vitamin D. You will receive vitamin D in fortifiedsome time outdoors sans sun-block, you are well
foods like milk, cheese and cereals. One eighton your way to maintaining adequate levels of this
ounce glass of milk will contain about 100 IU ofessential nutrient.
vitamin. You could get a similar amount of vitaminVitamin D is fast becoming known as a
D in a bowl of fortified cereal. So now yoursuper-nutrient. The importance of adequate levels
vitamin D intake is 200 IU. That is half of theof vitamin D has grown exponentially within the
RDA, and a measly 1% of the vitamin D yourpast several years. Recent studies have produced
body will make on a thirty minute walk in theconvincing evidence that insufficient vitamin D has
mid-day sun. It is physically impossible to eat yourserious, widespread health consequences. Studies
way out of a vitamin D deficiency.reveal that having adequate levels of vitamin D
Unlike most vitamins, your the human body cancould cut your risk for most age-related diseases,
produce vitamin D. Within 15-30 minutes, witheven the common cold and influenza. In fact,
40% of your skin exposed to the ultra violet Bcurrent research shows that 75% of all colon and
(UVB) rays of the sun, your body will producebreast cancer deaths could be prevented by
20,000 IU of vitamin D. This seems like amaintaining adequate serums levels of vitamin D.
staggering figure when you consider that the RDARecommendations:
for vitamin D is a scant 400 IU. However, studiesThere is no doubt that vitamin D has the
confirm that somewhere between 50-75% ofresearch spotlight right now. The buzz has been
Americans are deficient in Vitamin D, and if youso intense even the traditional medical community
have dark skin, the chances of vitamin Dhas taken notice. It is now quite possible that your
deficiency are even greater. Several studiesdoctor will include vitamin D levels when ordering
reveal that more than 90% of African-Americansblood tests for your scheduled physical
and Hispanic-Americans are lacking in vitamin D.examination. Imagine an MD checking for vitamin
There are several reasons for this widespreadlevels in his patient.
deficiency. Geographic location is a fundamentalCheck your current serum level of vitamin D. Tell
principle for vitamin D production. Not allyour doctor to check your blood for 25 Hydroxy
geographic locations receive the same amount ofVitamin D, [25(OH)D]. You can also request a
UVB radiation. For example, if I take a thirtyhome test kit from the Vitamin D Council that will
minute walk on this beautiful November day,accurately measure 25(OH) D. For more
dressed in shorts and a t-shirt, my body willinformation on the home test, and an excellent
produce 20,000 IU of vitamin D; however, I live insource for the most current research on vitamin
Florida, and my geographic location receives farD, visit the Vitamin D Council.
more UVB radiation than New York, Denver orI suggest that you start supplementing with
Seattle. In these cities, a thirty-minute walk willvitamin D before waiting for a blood test result.
provide a fraction of the vitamin D. If you are notThere is a strong likelihood that the blood test will
sure about the latitude of your hometown, youconfirm that you are not within the optimal range
can find it on the internet in the InfoPleaseof 50-80 ng/ml. Do not be fooled by the
Latitude database.Recommended Daily Allowance (RDA) of 400 IU.
Most people believe that exposure to the sunReaching the optimal zone will require that your
causes cancer. This is a controversial issue andvitamin D intake be significantly higher. I currently
there is strong evidence that it is not the sun thattake 8,000 IU, twenty times the RDA, of
causes skin cancer. There is a growing body ofsupplemental Vitamin D daily.
evidence suggesting the lack of vitamin DConsidering we are in the midst of what could be
production will inhibit the immune system functionan extreme flu season, I recommend that healthy
and open the door to a variety of diseases. Ifadults take 5,000 IU - 10, 000 IU of supplemental
you use a sun block lotion with an SPF ratingvitamin D daily. Healthy children under the age of
greater than eight, your vitamin D production istwo should take 1,000 IU. Children over the age
effectively reduced by 95% or greater.of two should take 2, 000 IU of supplemental
I do not use sun-blockers. I think the syntheticvitamin D daily.
chemicals found in most commercially availableSpend some time outdoors. Don't be afraid of
sun-blockers constitute a greater health risk thanmoderate sun-exposure.