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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 ...
Zinc and vitamin D are also essential for bone health but have the added benefit for men over 50 by reducing the risk of erectile dysfunction, a condition commonly affecting men over age 40 ...
While some studies have found that vitamin D 3 raises 25(OH)D blood levels faster and remains active in the body longer, [44] [45] others contend that vitamin D 2 sources are equally bioavailable and effective for raising and sustaining 25(OH)D. [46] [47] If digestive disorders compromise absorption, then intramuscular injection of up to ...
Vitamin D 2, or ergocalciferol, is obtained from D 2 supplements or fortified food sources. [3] These two forms of vitamin D are metabolized in the liver and stored as 25-hydroxyvitamin D. [ 4 ] Before biological use, the storage form must be converted into an active form.
As a medication, cholecalciferol may be taken as a dietary supplement to prevent or to treat vitamin D deficiency. One gram is 40 000 000 (40 × 10 6) IU, equivalently 1 IU is 0.025 μg, or 25 ng. Dietary reference intake values for vitamin D (ergocalciferol, which is D 2, or cholecalciferol, which is D 3), or both, have been established and ...
Vitamin D3, aka cholecalciferol, is important for bone health and immune function. Experts discuss benefits, sources, risks and who needs a supplement.
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