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Exposure of skin to ultraviolet radiation from sunlight presents both positive and negative health effects. On the positive side, UV exposure enables the synthesis of vitamin D3, which is essential for bone health [1] and potentially plays a role in inhibiting certain cancers. [2][3] While vitamin D can also be obtained through dietary ...
Adequate amounts of vitamin D can be produced with moderate sun exposure to the face, arms and legs (for those with the least melanin), averaging 5–30 minutes twice per week, or approximately 25% of the time for minimal sunburn. The darker the skin on the Fitzpatrick scale and the weaker the sunlight, the more minutes of exposure are needed.
Vitamin D deficiency is associated with the development of schizophrenia. [5] Vitamin D can be synthesized in the skin under the exposure of UVB from sunlight. Oily fish, such as salmon, herring, and mackerel, are also sources of vitamin D, as are mushrooms. Milk is often fortified with vitamin D; sometimes bread, juices, and other dairy ...
There are many risk factors for vitamin D deficiency, such as limited sun exposure, older age, certain health conditions, and skin pigmentation, says Prest. ... The best way to get Vitamin D is ...
Older adults, whose bodies become less good at making vitamin D from sun exposure as they age; Folks with dark skin (your body may make less vitamin D from the sun); People carrying a lot of ...
When to take vitamin D. It just plain doesn’t matter, as long as you take it with food, says Dr. Manson. Her advice: Take it when you’ll remember to take it — morning, noon or night — and ...
Excessive exposure to sunlight poses no risk in vitamin D toxicity through overproduction of vitamin D precursor, cholecalciferol, regulating vitamin D production. During ultraviolet exposure, the concentration of vitamin D precursors produced in the skin reaches an equilibrium, and any further vitamin D that is produced is degraded. [9]
Vitamin D deficiency. Cholecalciferol is a form of vitamin D which is naturally synthesized in skin and functions as a pro-hormone, being converted to calcitriol. This is important for maintaining calcium levels and promoting bone health and development. [4] As a medication, cholecalciferol may be taken as a dietary supplement to prevent or to ...