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

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

    Each of these high-potency softgels delivers 5,000 IU of vitamin D3, making them a fantastic option for those looking to boost their vitamin D levels significantly. "With 125 percent of the ...

  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

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

    Therefore, foods high in vitamin D will be the best ways to prevent a deficiency, says Prest. Some of the best food sources of vitamin D, according to Prest, include: Salmon. Mackerel. Sardines ...

  5. Have You Been Taking Your Vitamin D the Right Way? - AOL

    www.aol.com/exact-time-vitamin-d-140000773.html

    The best vitamin D supplements Both vitamin D2 and D3 are good, but “D3 has better bioavailablilty,” says Dr. Manson, meaning that it’s more easily used by your body. But that doesn’t mean ...

  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 and neurology - Wikipedia

    en.wikipedia.org/wiki/Vitamin_D_and_neurology

    One common active form is 1,25-dihydroxyvitamin D. [4] The term vitamin D in this article means cholecalciferol, ergocalciferol, 25-hydroxyvitamin D, and the active forms. The role of vitamin D is best characterized as enabling calcium absorption and regulating calcium homeostasis. Vitamin D also play a role in phosphate absorption. [5]