Vitamin D3 1,000IU

Life Extension

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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. These factors point to the value of taking a daily vitamin D supplement.

Benefits at a Glance:

  • Supports healthy bone density
  • Encourages healthy cell differentiation
  • Promotes healthy immune function
  • Shown to increase vitamin D blood levels with daily use
  • Perfect for those whose multivitamin already contains vitamin D

Supports bones, cellular health, and immune function

Vitamin D has long provided significant support for healthy bone density.1-7 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.8-14 These findings link a deficiency of vitamin D to a host of common age-related problems.

Getting enough vitamin D

The current RDA for vitamin D is only 600 IU which has resulted in startling evidence of a widespread deficiency for this vitamin. Most experts in the field now recommend an intake between 1, 000–10, 000 IU for adults to achieve a serum 25(OH)D level above those indicative of vitamin D deficient levels, at approximately 80 nmol/L or 32 ng/mL.

Life Extension suggests that healthy adults supplement each day with 5, 000–8, 000 IU of vitamin D with the objective of achieving an optimal 25-hydroxy vitamin D blood level between 50–80 ng/mL. A vitamin D blood test can help you determine the additional amount of vitamin D you may need to supplement with to achieve an optimal level.

Complements multivitamins with vitamin D

If your calcium supplement or multivitamin also contains vitamin D3, this softgel is an excellent way to complement that intake and reach an optimum blood level of D3 for whole-body health!

References

  1. J Bone Miner Res. 2004 Aug;19(8):1221-30.
  2. J Bone Miner Res. 2006 Mar;21(3):397-405.
  3. Bone. 2008 May;42(5):996-1003.
  4. Steroids. 2001 Mar-May;66(3-5):375-80.
  5. Bone. 2006 Oct;39(4):946-53.
  6. Am J Clin Nutr. 2008 Aug;88(2):513S-519S.
  7. J Clin Endocrinol Metab. 2004 Jan;89(1):76-80.
  8. Am J Prev Med. 2011 Jul;41(1):68-74.
  9. Proc Nutr Soc. 2012 Feb;71(1):50-61.
  10. Med Hypotheses. 2011 Dec;77(6):1145-7.
  11. Dermatoendocrinol. 2011 Jan;3(1):11-7.
  12. Mol Cancer. 2011 May 18;10:58.
  13. J Invest Dermatol. 2012 Dec;132(12):2762-9.
  14. Anticancer Res. 2012 Jan;32(1):223-36.