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Turkesterone is a phytoecdysteroid found in numerous plant species, including Ajuga turkestanica, [1] various Vitex species, [2] [3] [4] Triticum aestivum, [5] and ...
Previtamin D 3 is an intermediate in the production of cholecalciferol (vitamin D 3).. It is formed by the action of UV light, most specifically UVB light of wavelengths between 295 and 300 nm, acting on 7-dehydrocholesterol in the epidermal layers of the skin.
Ergocalciferol, also known as vitamin D 2 and nonspecifically calciferol, is a type of vitamin D found in food. It is used as a dietary supplement [3] to prevent and treat vitamin D deficiency [4] due to poor absorption by the intestines or liver disease. [5]
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 ...
The EFSA reviewed safe levels of intake in 2012, [167] setting the tolerable upper limit for adults at 100 μg/day (4000 IU), a similar conclusion as the IOM. The Swedish National Food Agency recommends a daily intake of 10 μg (400 IU) of vitamin D 3 for children and adults up to 75 years, and 20 μg (800 IU) for adults 75 and older. [175]
Industrially, 7-DHC generally comes from lanolin, and is used to produce vitamin D3 by UV exposure. [12] Lichen (Cladonia rangiferina) is used to produce vegan D3. [13] [14] 7-DHC is used for vitamin D3 synthesis via lanosterol in land animals, via cycloartenol in plants, and in algae together with another provitamin D ergosterol for D2. In ...
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3579 S High St, Columbus, OH · Directions · (614) 409-0683