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Vitamin D is a group of fat-soluble secosteroids responsible for increasing intestinal absorption of calcium, magnesium, and phosphate, along with numerous other biological functions. [1] [2] In humans, the most significant compounds within this group are vitamin D 3 (cholecalciferol) and vitamin D 2 (ergocalciferol). [2] [3]
Vitamin D Dosage. How much vitamin D you need can be trickier to gauge on your own, especially if you rely mostly or completely on sunlight to meet your needs, says Yawitz. Most men need around 15 ...
Ergocalciferol may be used as a vitamin D supplement, whereas cholecalciferol (vitamin D 3) is produced naturally by the skin when exposed to ultraviolet light. [15] Ergocalciferol (D 2 ) and cholecalciferol (D 3 ) are considered to be equivalent for vitamin D production, as both forms appear to have similar efficacy in ameliorating rickets ...
[8] [9] Fungi are grown industrially to enable ergosterol extraction and preparation as a powder for sale as a vitamin D 2 dietary supplement and food additive. [10] Preparations of irradiated ergosterol containing a mixture of previtamin and vitamin D 2 were called viosterol in the 1930s. [11]
Vitamin D supplements may help boost your cardiometabolic health in several ways, including improved blood pressure and cholesterol.
In addition to its vitamin D content, trout is packed with high-quality protein and heart-healthy omega-3 fatty acids, which can help fight inflammation and support cardiovascular health. Trout ...
22-Dihydroergocalciferol is a form of vitamin D, also known as vitamin D 4. [2] It has the systematic name (5Z,7E)-(3S)-9,10-seco-5,7,10(19)-ergostatrien-3-ol. [1] Vitamin D 4 is found in certain mushrooms, being produced from ergosta-5,7-dienol (22,23-dihydroergosterol) instead of ergosterol. [3]
The Institute of Medicine in 2010 recommended a maximum uptake of vitamin D of 4000 IU/d, finding that the dose for lowest observed adverse effect level is 40,000 IU daily for at least 12 weeks, [25] and that there was a single case of toxicity above 10 000 IU after more than seven years of daily intake; this case of toxicity occurred in ...
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