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  2. Taking This Daily Vitamin Could Slash Dementia Risk By 40 ...

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    $20.99 at Amazon. Orange Vitamin D3. Rated at 4.7 stars by over 6,000 happy customers on Amazon, this daily vitamin is a tried-and-true product that's affordable and even offers a refreshing ...

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

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    Vitamin D3, also called cholecalciferol, is what gives the “sunshine” vitamin its name. D3 is produced in our body from exposure to sunlight, Prest explains. Vitamin D2 vs. D3

  4. A beginner's regimen: The power of core nutritional supplements

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    Life Extension details which nutritional supplements are best ... supplementing some vitamin D in a multivitamin or a standalone D3 formula can help achieve optimal vitamin D levels without the ...

  5. Vitamin D - Wikipedia

    en.wikipedia.org/wiki/Vitamin_D

    Vitamin D 3 (cholecalciferol) is produced industrially by exposing 7-dehydrocholesterol to UVB and UVC light, followed by purification. The 7-dehydrocholesterol is sourced as an extraction from lanolin, a waxy skin secretion in sheep's wool. [203] Vitamin D 2 (ergocalciferol) is produced in a similar way using ergosterol from yeast as a ...

  6. Caltrate - Wikipedia

    en.wikipedia.org/wiki/Caltrate

    Caltrate [1] is a brand name calcium supplement sold by Haleon. The brand was originally owned by Pfizer (formerly Wyeth) and GSK and in Japan by Hisamitsu Pharmaceutical. The Caltrate brand is supplied in many different formulas; calcium carbonate (NOT calcium citrate) is the common ingredient serving as the calcium supplement source. [2]

  7. 7-Dehydrocholesterol - Wikipedia

    en.wikipedia.org/wiki/7-Dehydrocholesterol

    7-Dehydrocholesterol (7-DHC) is a zoosterol that functions in the serum as a cholesterol precursor, and is photochemically converted to vitamin D 3 in the skin, therefore functioning as provitamin-D 3. The presence of this compound in human skin enables humans to manufacture vitamin D 3 (cholecalciferol).

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