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  2. Scientists Reveal New Findings About Older Adults Who Take ...

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    Participants were divided into two groups – one was given a placebo, while the other was given a vitamin D supplement of 60,000 IU a month (which averages out to about 2,000 IU a day) for up to ...

  3. Vitamin D deficiency - Wikipedia

    en.wikipedia.org/wiki/Vitamin_D_deficiency

    Vitamin D deficiency is typically diagnosed by measuring the concentration of the 25-hydroxyvitamin D in the blood, which is the most accurate measure of stores of vitamin D in the body. [1][7][2] One nanogram per millilitre (1 ng/mL) is equivalent to 2.5 nanomoles per litre (2.5 nmol/L). Severe deficiency: <12 ng/mL = <30 nmol/L[2] Deficiency ...

  4. Experts Say This Is Real Difference Between Vitamin D and D3

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    Vitamin D3 needs for the average adult between the ages 19 and 70 years old is 600 IU (15 mcg) per day, says Pelitera. ... It is possible to over-supplement vitamin D, which can lead to a buildup ...

  5. Vitamin D toxicity - Wikipedia

    en.wikipedia.org/wiki/Vitamin_D_toxicity

    Vitamin D toxicity. Cholecalciferol (shown above) and ergocalciferol are the two major forms of vitamin D. Specialty. Endocrinology, toxicology. Vitamin D toxicity, or hypervitaminosis D, is the toxic state of an excess of vitamin D. The normal range for blood concentration in adults is 20 to 50 nanograms per milliliter (ng/mL).

  6. The dark side of daily vitamin D supplements: After a man ...

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    A surplus of vitamin D, though, can be dangerous. How much vitamin D should I take daily? In the U.S., the amount of vitamin D in a product is typically labeled in International Units (IU) and/or ...

  7. Cholecalciferol - Wikipedia

    en.wikipedia.org/wiki/Cholecalciferol

    The Institute of Medicine in 2010 recommended a maximum uptake of vitamin D of 4000 IU/d, finding that the dose for lowest observed adverse effect level is 40,000 IU daily for at least 12 weeks, [25] and that there was a single case of toxicity above 10 000 IU after more than seven years of daily intake; this case of toxicity occurred in ...

  8. Vitamin D - Wikipedia

    en.wikipedia.org/wiki/Vitamin_D

    Vitamin D is a group of fat-soluble secosteroids responsible for increasing intestinal absorption of calcium, magnesium, and phosphate, along with numerous other biological functions. [ 1 ][ 2 ] In humans, the most significant compounds within this group are vitamin D 3 (cholecalciferol) and vitamin D 2 (ergocalciferol). [ 2 ][ 3 ]

  9. Vitamin D doesn’t prevent disease for most, study says - AOL

    www.aol.com/vitamin-d-doesn-t-prevent-215553662.html

    The results of a new study have sparked debate about the benefits of vitamin D supplements. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ...

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