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BEWARE of Most Prescription Vitamin D Supplements!

Catherine McDiarmid-Watt | Sunday, September 17, 2017 | 0 comments

Image: NatureWise Vitamin D3 5,000 IU in Organic Olive Oil, Non-GMO, USP Grade, 360 countSupplemental vitamin D comes in two forms: ergocalciferol (vitamin D2) and cholecalciferol (vitamin D3).

They have generally been regarded as equivalent and interchangeable, but that notion is based on studies of rickets prevention in infants conducted seven decades ago.

Recent studies have shown that vitamin D3 is a more potent form of vitamin D. Vitamin D2 has a shorter shelf life, and its metabolites bind with protein poorly, making it less effective.

One unit of cod liver oil (containing vitamin D3) has been shown to be as effective as four units of Viosterol (a medicinal preparation of vitamin D2).

However, the form of vitamin D used in prescriptions in North America is almost invariably vitamin D2.

Source: The case against ergocalciferol (vitamin D2) as a vitamin supplement1,2American Journal of Clinical Nutrition

Editor's Note: After reading this article, I went to check mine. I am taking Exact Vitamin D 1000 U.I. (a Canadian Loblows no-name brand), Checking the bottle, it says that it is Vitamin D3.


Contraindications and Precautions:
Vitamin D is contraindicated in those with hypercalcemia and in those with evidence of vitamin D toxicity. Vitamin D is contraindicated in those with hypersensitivity to any component of a vitamin D-containing product.

Pregnant women and nursing mothers should avoid vitamin D supplemental intakes greater than U.S. RDA amounts of the vitamin unless higher amounts are prescribed by their physicians. The U.S. RDA for vitamin D is 400 IU or 10 micrograms daily.

Pharmaceutical use of vitamin D must only be undertaken under medical supervision.
Supplemental vitamin D should be used cautiously in those on digoxin or any cardiac glycoside. Hypercalcemia in those on digoxin may precipitate cardiac arrhythmias. Supplemental doses of vitamin D greater that upper limit intake levels (UL) should only be used if medically prescribed and should be avoided by those on digoxin or other cardiac glycoside. The UL for adults is 2,000 IU or 50 micrograms daily.

Concomitant use of thiazides and pharmacologic doses of vitamin D may cause hypercalcemia in some.

Source: Dr. Mercola: BEWARE of Most Prescription Vitamin D Supplements!

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Image: Zita West's Guide to Fertility and Assisted Conception: Essential Advice on Preparing Your Body for IVF and Other Fertility Treatments, by Zita West. Publisher: Random House UK (April 12, 2010)Zita West's Guide to Fertility and Assisted Conception: Essential Advice on Preparing Your Body for IVF and Other Fertility Treatments
by Zita West

-- Embarking on IVF—or any assisted fertility treatment—can be a very demanding and stressful experience, but the right physical, nutritional, and emotional support can lessen these stresses and strains and increase the chances of success.

Here a leading fertility and pregnancy expert offers an in-depth explanation of all aspects of fertility and, uniquely, addresses the issues involved in using assisted conception.

She explains fertility from preconception and trying naturally to assisted conception, what is involved in the IVF process, how to prepare your body to increase the chances of conceiving successfully, the importance of a proactive approach to diet and nutrition, and how complementary therapies, such as acupuncture, can increase the chances of success.

Including interviews with leading experts in the field, case histories from patients, and the author's own holistic principles, this is an invaluable guide for the growing number of people who are considering, or have already embarked on, medical intervention to enable them to conceive.

Image: Buy Now on Amazon.comPaperback: 500 pages
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About Catherine: I am mom to three grown sons, two grandchildren and two rescue dogs. After years of raising my boys as a single mom, I remarried a wonderful man who had never had a child of his own. Unexpectedly, I found myself pregnant at 49!
Sadly we lost that precious baby at 8 weeks, and decided to try again. Five more losses, turned down for donor egg, foster care and adoption due to my age and losses - we have accepted that there will be no more babies in our house.

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