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

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   READ MORE. How much vitamin D do I need? Older adults need about 600 to 800 IU of vitamin D daily, depending on their age. You can get this through a combination of sun exposure and vitamin-D rich ...

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

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   Coroner’s records show the 89-year-old had taken NaturPlus UK vitamin D supplements for at least ... (15 mcg) for adults ages 19 to 70, and 800 ... “If you’re taking too much over time, you ...

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

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   For vitamin D2, Pelitera says that there are only specific vitamin D2 dosage recommendations indicated for very specific diseases, including hypoparathyroidism, refractory rickets (also known as ...

5. 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 ...

6. Vitamin D - Wikipedia

   en.wikipedia.org/wiki/Vitamin_D

   Vitamin D 5. sitocalciferol. (made from 7-dehydrositosterol) Several forms (vitamers) of vitamin D exist, with the two major forms being vitamin D 2 or ergocalciferol, and vitamin D 3 or cholecalciferol. [ 1 ] The term 'vitamin D' refers to either D 2 or D 3, or both, and is known collectively as calciferol.

7. 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).