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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 ...
One study suggests that adding calcium and vitamin D supplementation to a lower-calorie diet may increase fat loss in people who typically consume low levels of calcium compared to people who only ...
The body produces vitamin D3, which is converted into active vitamin D. ... Vitamin D is fat-soluble, so taking it with a fatty food can help improve the absorption of it in the body, Adamian ...
Unlike the other twelve vitamins, vitamin D is only conditionally essential - in a preindustrial society people had adequate exposure to sunlight and the vitamin was a hormone, as the primary natural source of vitamin D was the synthesis of cholecalciferol in the lower layers of the skin's epidermis, triggered by a photochemical reaction with ...
Vitamin D overdose is impossible from UV exposure; the skin reaches an equilibrium where the vitamin degrades as fast as it is created. [ 42 ] Cholecalciferol can be produced in skin from the light emitted by the UV lamps in tanning beds , which produce ultraviolet primarily in the UVA spectrum, but typically produce 4% to 10% of the total UV ...
Because vitamin D is fat-soluble, it is hypothesized that absorption would be improved if patients are instructed to take their supplement with a meal. Raimundo et al. [73] [74] performed different studies confirming that a high-fat meal increased the absorption of vitamin D3 as measured by serum 25(OH) D. A clinical report indicated that serum ...
Vitamin D3, aka cholecalciferol, is important for bone health and immune function. Experts discuss benefits, sources, risks and who needs a supplement.
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 ]