vitamin D

Watch videos about vitamin D

• February 13, 2013
  Is Vitamin D3 Better Than D2?

  Vitamin D3, sourced from sunlight exposure, animal, and plant sources may be preferable to vitamin D2 sourced from fungi.
• December 15, 2011
  Take Vitamin D Supplements With Meals

  Taking vitamin D supplements with food may be a cost-effective strategy to achieve optimum levels.
• December 14, 2011
  Resolving the Vitamin D-Bate

  Why the current vitamin D recommendations may be too low, other expert recommendations may be too high, and 2000 international units a day may be just right.
• December 13, 2011
  How the Institute of Medicine Arrived at Their Vitamin D Recommendation

  The latest revision of the official vitamin D recommendations were based on the body's reaction to protect bone health, but what about the other three dozen affected organs?
• December 12, 2011
  The Difficulty of Arriving at a Vitamin D Recommendation

  People respond differently to the same level of vitamin D supplementation, making it difficult to formulate one-size-fits-all guidelines.
• December 9, 2011
  Vitamin D Supplements May Be Necessary

  To reach the circulating (25-hydroxy) vitamin D levels associated with the lowest overall mortality, one may need to take supplements, given data suggesting suboptimal production from sun even under..
• December 8, 2011
  Vitamin D and Mortality May Be a U-shaped Curve

  Vitamin D deficiency may shorten one's lifespan, but getting too much vitamin D may also adversely affect longevity.
• December 7, 2011
  Is Vitamin D the New Vitamin E?

  The Institute of Medicine's conservative position on vitamin D is understandable given the history of hyped vitamin supplements (vitamin A, beta carotene, folic acid, vitamin C, vitamin E) that..