Vitamin D

  • 2000 IU, 360 softgels
  • Item # 26335

Vitamin D

  • 2000 IU, 360 softgels
  • Item # 26335

Vitamin D3 can be synthesized by humans in the skin upon exposure to ultraviolet-B (UVB) radiation from sunlight. But, due to the winter season, weather conditions, and sun block, the body’s ability to produce optimal vitamin D levels may be inhibited.1 All of these factors point to the value of taking a daily vitamin D supplement.

Vitamin D has long provided significant support for healthy bone density.2-7 However, scientists have also validated the critical role that vitamin D plays in regulating healthy cell division and differentiation, and its profound effects on human immunity.8-11 These findings link a deficiency of vitamin D to a host of common age-related problems.

The current RDA is only 600 IU. As a result of startling evidence of a widespread vitamin D deficiency, prominent nutritional scientists are calling on Americans to increase their vitamin D intake to 1,000 IU per day and higher. Currently, most experts in the field believe that intakes of between 1,000 and 10,000 IU for adults will lead to serum 25(OH)D levels above those indicative of vitamin D deficient levels, at approximately 80 nmol/L or 32 ng/mL.

Life Extension® recommends that healthy adults supplement each day with at least 2,000 IU of vitamin D. Elderly adults may benefit from higher doses such as 5,000 IU daily up to 10,000 IU daily. The objective of taking a vitamin D supplement is to achieve an optimal 25-hydroxy vitamin D blood level of 50 ng/mL (and higher).

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  • This Item: Vitamin D, 2000 IU, 360 softgels
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  1. Photochem Photobiol. 2007 Mar-Apr;83(2):459-63.
  2. Rev Rhum Engl Ed. 1996 Feb;63(2):135-40.
  3. Proc Nutr Soc. 2001 May;60(2):283-9.
  4. J Bone Miner Res. 2003 Jul;18(7):1217-26.
  5. Proc Natl Acad Sci USA. 2002 Oct 15;99(21):13487-91.
  6. Steroids. 2001 Mar-May;66(3-5):375-80.
  7. Bone. 2006 Oct;39(4):946-53.
  8. Int J Cancer. 1984 Feb 15;33(2):193-202.
  9. J Immunol. 1986 Apr 15;136(8):2734-40.
  10. Cancer Res. 1985 Jan;45(1):311-6.
  11. Endocrinology. 1984 Nov;115(5):1891-6.

Serving Size 1 capsule

Servings Per Container 360

Amount Per Serving

Vitamin D3 (cholecalciferol)

2000 IU

Other ingredients: beef gelatin (softgel shell), glycerin, water

Dosage and Use

Take one softgel daily, or as recommended by your health care professional.


Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of Life Extension. We do not verify or endorse any claims made in these reviews. Please read the full product reviews disclaimer.

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Vitamin D

2000 IU, 360 softgels


$0.07/count | 360 Day Supply