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2. 10 Best Vitamin D Supplements, According to Dietitians - AOL

   www.aol.com/lifestyle/10-best-vitamin-d...

   These easy-to-swallow capsules are a high-potency supplement that provides 5,000 IU of vitamin D per softgel. Made with organic olive oil, this supplement helps enhance vitamin D absorption ...

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

   www.aol.com/experts-real-difference-between...

   Research has shown that vitamin D3 tends to be more effective than vitamin D2 supplementation when trying to increase serum vitamin D levels, says Pelitera. “In bloodwork, we measure Vitamin D ...

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

   www.aol.com/lifestyle/scientists-reveal-findings...

   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 ...

5. 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.

6. 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 ...

7. 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 ...