NutritionFacts.org

dietary guidelines

Watch videos about dietary guidelines

  • Vitamin B12 Recommendation Change
    Vitamin B12 Recommendation Change
    Based on two biomarkers of functional vitamin B12 (cobalamin) status, B12 recommendations formulated more than a half century ago may need to be updated.
  • Resolving the Vitamin D-Bate
    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.
  • How the Institute of Medicine Arrived at Their Vitamin D Recommendation
    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?
  • The Difficulty of Arriving at a Vitamin D Recommendation
    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.
  • Vitamin D Supplements May Be Necessary
    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...
  • Vitamin D and Mortality May Be a U-shaped Curve
    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.
  • Is Vitamin D the New Vitamin E?
    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...
  • Evolutionary Argument for Optimal Vitamin D Level
    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?
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