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2. 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 ...

3. 10 Best Vitamin D Supplements, According to Dietitians - AOL

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   If you're looking for a vitamin D supplement that offers various doses, these tablets are for you. Dosage options include 2,000, 4,000, and 6,000 IU, allowing you to choose the dose that best ...

4. 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 ...

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. 6 Surprising Benefits of Vitamin D, According to Nutritionists

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   Reference: National Institutes of Health, Office of Dietary Supplements. Most people need about 600 IU per day, but people over the age of 70 need a little more, somewhere around 800 IU to reduce ...

7. Ergocalciferol - Wikipedia

   en.wikipedia.org/wiki/Ergocalciferol

   Ergocalciferol, also known as vitamin D2 and nonspecifically calciferol, is a type of vitamin D found in food and used as a dietary supplement. [3] As a supplement it is used to prevent and treat vitamin D deficiency. [4] This includes vitamin D deficiency due to poor absorption by the intestines or liver disease. [5]