Health

The miracle cure is exercise, not vitamin D

In residents of northern latitudes, the content of vitamin D in the body varies naturally throughout the year. This coincides with varying exposure to sunlight, which typically is high in summer and low in winter. Our most ...

Health

Vitamin D deficiency may impair muscle function

Vitamin D deficiency may impair muscle function due to a reduction in energy production in the muscles, according to a mouse study published in the Journal of Endocrinology. Vitamin D deficient mice were found to have impaired ...

Health

USPSTF finds evidence insufficient for vitamin D screening

(HealthDay)—The U.S. Preventive Services Task Force (USPSTF) concludes that the current evidence is insufficient to ascertain the balance of benefits and harms of screening asymptomatic adults for vitamin D deficiency. ...

Obstetrics & gynaecology

Kids' metabolic health can be improved with exercise during pregnancy

A mechanism has been identified that explains how physical exercise in pregnancy confers metabolic health benefits in offspring. According to researchers, the key lies with a protein called SOD3, vitamin D and adequate exercise, ...

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Vitamin D

Vitamin D is a group of fat-soluble prohormones, the two major forms of which are vitamin D2 (or ergocalciferol) and vitamin D3 (or cholecalciferol). The term vitamin D also refers to metabolites and other analogues of these substances. Vitamin D3 is produced in skin exposed to sunlight, specifically ultraviolet B radiation.

Vitamin D plays an important role in the maintenance of organ systems.

Vitamin D deficiency can result from inadequate intake coupled with inadequate sunlight exposure; disorders that limit its absorption; conditions that impair conversion of vitamin D into active metabolites, such as liver or kidney disorders; or, rarely, by a number of hereditary disorders. Deficiency results in impaired bone mineralization and leads to bone softening diseases rickets in children and osteomalacia in adults, and possibly contributes to osteoporosis. However, sunlight exposure, to avoid deficiency, carries other risks, including skin cancer; this risk is avoided with dietary absorption, either through diet or as a dietary supplement.

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