vitamin D


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Related to vitamin D: vitamin D3, Vitamin D deficiency

vitamin D

n.
A fat-soluble vitamin occurring in several forms, especially vitamin D2 or vitamin D3, that is required for normal growth of teeth and bones and is involved in many other metabolic processes, produced in the skin upon exposure to sunlight and present in fish, eggs, and fortified foods such as milk.

vitamin D2

n.
A white crystalline compound, C28H44O, produced commercially by ultraviolet irradiation of ergosterol obtained from fungi or plants, and used as a dietary supplement. Also called ergocalciferol.

vitamin D3

n.
A colorless crystalline compound, C27H44O, found in fish, eggs, and fortified foods and formed in the skin of humans and other vertebrates upon exposure to ultraviolet radiation, as in sunlight. It is often used as a dietary supplement. Also called cholecalciferol.

vitamin D

n, pl D vitamins
(Biochemistry) any of the fat-soluble vitamins, including calciferol and cholecalciferol, occurring in fish-liver oils (esp cod-liver oil), milk, butter, and eggs: used in the treatment of rickets and osteomalacia

vitamin D


n.
any of the several fat-soluble, antirachitic vitamins D1, D2, D3, occurring in milk and fish-liver oils, esp. cod and halibut: essential for the formation of normal bones and teeth.
[1920–25]

vitamin D1


n.
a form of vitamin D obtained by ultraviolet irradiation of ergosterol.
[1930–35]

vitamin D2


n.
[1930–35]

vitamin D3


n.
a form of vitamin D, C27H43OH, occurring in fish-liver oils, that differs from vitamin D2 by slight structural differences in the molecule. Also called cholecalciferol.

vitamin D

Any of a group of vitamins necessary for normal bone growth. Vitamin D is found in milk, fish, and eggs and can be produced in the skin on exposure to sunlight.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.vitamin D - a fat-soluble vitamin that prevents ricketsvitamin D - a fat-soluble vitamin that prevents rickets
ergosterol - a plant sterol that is converted into vitamin D by ultraviolet radiation
fat-soluble vitamin - any vitamin that is soluble in fats
References in periodicals archive ?
Other than salmon and other fatty fish, most foods aren't naturally rich in vitamin D.
The public should be boosting their vitamin D intake with supplements because of a lack of bright sunshine in the UK, government health experts have suggested.
Dr Adrian Martineau, an expert on vitamin D's effect on health, said:"SACN was right to say that we can't rely on sunshine in the UK to meet the vitamin D requirements.
Vitamin D has been primarily associated with bone formation, but it also regulates numerous cellular functions, including cell growth and differentiation.
June 1, 2015 /PRNewswire/ -- Women who took vitamin D and calcium supplements had the same number of menopausal symptoms as women who did not take the supplements, according to a study published today in Maturitas, the official journal of the European Menopause and Andropause Society.
If you're stumped about what to tell patients who ask you if they should be adding supplemental vitamin D to their diet, you're not alone.
It is now well accepted that the vitamin D hormone is a pleotropic hormone that regulates a wide spectrum of biological processes beyond calcium and skeletal homeostasis.
Allan Butterfield and his colleagues divided 27 one-year-old rats to receive diets that provided the same amount of calories but contained low, normal, or high amounts of vitamin D.
According to French researchers, low vitamin D levels don't cause ill health.
ISLAMABAD -- Vitamin D levels were consistently lower in children with low hemoglobin levels compared with their non-anemic counterparts, researchers found.
The reason for this turnaround is basic science: sunshine creates Vitamin D which is absorbed through the skin and then works together with calcium to create strong bones, helping to prevent the bone weakening condition, osteoporosis.
To help prevent that for myself, each day, between May and September, I now try to get 10 minutes of sunlight oily fish that''''s of Vitamin D on my skin, without sunscreen, to give my bones a boost.