sunlight

Watch videos about sunlight

• 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 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 6, 2011
  Evolutionary Argument for Optimal Vitamin D Level

  Should the vitamin D levels found in lifeguards be considered the norm for our species given the fact that we evolved running around naked all day in equatorial Africa?
• May 30, 2011
  Melatonin & Breast Cancer

  There are components of our diet that may increase cancer risk by mimicking the role of light pollution in melatonin suppression.
• May 29, 2011
  Vitamin D Pills vs. Tanning Beds

  A reclassification of tanning beds as a category 1 carcinogen underscores the importance of vitamin D supplementation for those at risk for deficiency.