Monday, February 25, 2013

Vitamin D: Should You Be Supplementing?


What about Vitamin D?
Vitamin D is not really a vitamin, but one of the oldest prohormones, having been produced by life forms for over 750 million years In humans, vitamin D is critically important for the development, growth, and maintenance of a healthy body, beginning with gestation in the womb and continuing throughout the lifespan.
Vitamin D is measured in International Units (IU) and is potent in small quantities - one IU is equal to only 0.000025 milligrams (mg)! Conversely, 40 IU is equal to one microgram (mcg or μg).

Vitamin D3
Vitamin D3 is real vitamin D, for it is the same substance as what is produced in human skin in response to sun exposure. Supplemental vitamin D3 is derived from either lanolin or cod liver oil extract and is the form of vitamin D that most effectively treats vitamin D deficiency.

Vitamin D2
Vitamin D2 is derived from fungal sources by activating ergosterol with ultraviolet light. It is not naturally present in the human body and may have actions within the body different to those of vitamin D3.
Although many doctors are still prescribing vitamin D2, vitamin D3 is the preferred form for treating deficiency and is what is recommended by the majority of the experts as well as the Vitamin D Council.


How To Get Your Vitamin D
There are only two ways to receive vitamin D in the amounts necessary for proper health: Ultraviolet B (UVB) exposure and vitamin D supplementation. Diet should not be considered a satisfactory source of vitamin D. The few foods which do contain vitamin D, contain too little to be of any noticeable benefit.

Current US Government recommended amounts
Adequate Intake for vitamin D represents the daily intake established by the Food and Nutrition Board (FNB) as sufficient to maintain bone health and normal calcium metabolism in healthy people.
Food and Nutrition Board daily Adequate Intake (AI) for vitamin D
Children and adults up to the age of 70 years - 600 IU
Seniors 70+ years - 800 IU

Vitamin D Cofactors
In order to receive the most health benefit from increased levels of vitamin D, the proper cofactors must be present in the body. Vitamin D has many cofactors, but the ones listed below are the most important. Magnesium should be considered the most important one of all.

 Magnesium | Vitamin K | Vitamin A | Zinc A| Boron

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1 comment:

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