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  Vitamin D3, 1,000 IU, 120 Veg Caps
  D3


 
Vitamin D3, the preferred bioavailability form, supports cell growth, immunity, and energy metabolism. It also plays an essential part in calcium absorption and bone density health.
Tablet Size: 4C


Retail $12.99
Our Price $2.98


Availability:: Usually Ships in 1 to 2 Business Days

Description Supplement Facts Lab Tests
 

Vitamin D3 -- Supporting Bones, Mineral Balance & Gene Regulation

Vitamin D is a fat soluble vitamin found in some plant and animal sources, but primarily produced by the body after exposure to the sun’s ultraviolet (UV) rays. UV rays promote the skin’s production of vitamin D. Vitamin D3 or calciferol is the most active form, while vitamin D2 or ergocalciferol is synthesized by plants and less available to humans (in fact, studies cited in the Journal of Clinical Endocrinology & Metabolism, indicate that Vitamin D3 is 87% better in humans, in terms of absorption and bioavailability, than D2).

Vitamin D functions primarily to maintain normal blood levels of calcium and phosphorus. By supporting healthy calcium absorption, vitamin D helps to maintain strong bones. Vitamin D also works synergistically with other vitamins, minerals, and hormones to promote bone mineralization. 

Unfortunately with aging, skin cannot synthesize vitamin D from the sun as efficiently.

Immune System Supporter & More

Vitamin D has more recently been in the spotlight for immune system support. Vitamin D is thought to promote immune health by supporting regulation of cell growth and differentiation -- the process that determines cell’s “job” in the body. This regulation is particularly important as the differentiation of cells leads to a decrease in proliferation. Cellular proliferation, while essential for growth and wound healing, may foster harmful mutations, if uncontrolled.

Vitamin D has also shown great promise in maintaining the body’s innate immune response as well as supporting appropriate autoimmune activity. Both these mechanisms are thought result from vitamin D’s regulation of T cell development.

More recent studies also suggest that Vitamin D may play a role in supporting health body fat levels.

Factoids
  • Vitamin D is one of the oldest hormones, having been produced by life forms for over 750 million years.
  • The skin produces approximately 20,000 IU vitamin D in response 20–30 minutes summer sun exposure - 100 times more than the US government's recommendation of 200 IU per day!
  • Technically not a "vitamin," vitamin D is in a class by itself. Its metabolic product, calcitriol, is actually a secosteroid hormone that targets over 1000 genes in the human body.

Average Customer Review: Based on 13 reviewsWrite a review.


  0 of 0 people found the following review helpful:
 
Results December 15, 2011
Reviewer: Albert H Eubank from Overgaard, AZ United States  
This is a product that seems to be of high quality, used for over a year.

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Vit d3 November 17, 2011
Reviewer: Cathy Bigger from Atwater, OH United States  
The price was excellent.  I will order again

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D3 October 3, 2011
Reviewer: Julia Harrison from Otisfield, ME United States  
It keeps me in the normal range.

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  0 of 0 people found the following review helpful:
 
Calcium enhancement January 19, 2011
Reviewer: Albert Garbett from Cincinnati, OH United States  
Prompt arrival. Works well to supplement my liquid calcium supplement.

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  0 of 0 people found the following review helpful:
 
Vitamin D 3 January 18, 2011
Reviewer: Lorri McGorty from N. Arlington, NJ United States  
Very happy with them, they were a great price.

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