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Nature’s Bounty Vitamin D3 Supplements. Price: $29.98 (originally $41.58) Vitamin D3 is essential for bone health, particularly in the winter when sunlight is limited. This supplement is a pack ...
Low levels of vitamin D3 are more commonly found in individuals living in northern latitudes or with other reasons for a lack of regular sun exposure, including being housebound, frail, elderly, or obese, having darker skin, and wearing clothes that cover most of the skin. [23] [24] Supplements are recommended for these groups of people. [24]
The two most common forms are vitamin D2 and vitamin D3. Vitamin D is a fat-soluble vitamin which plays a major role in bone health, immunity, and nerve communication between the brain and muscle ...
Vitamin D toxicity, or hypervitaminosis D, is the toxic state of an excess of vitamin D. It is rare, and requires the consumption of vitamin D dietary supplements. [48] There is no general agreement about the intake levels at which vitamin D may cause harm.
Mapping of several bone diseases onto levels of vitamin D (calcidiol) in the blood [6] Normal bone vs. osteoporosis. 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.
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.
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