vitamin D

Any of a group of fat-soluble alcohols important in calcium metabolism in animals to form strong bones and teeth and prevent rickets and osteoporosis. It is formed by ultraviolet radiation (sunlight) of sterols (see steroid) present in the skin. The most important of these sterols are 7-dehydrocholesterol, formed by metabolic processes in animals, and ergosterol, present in vegetable oils. The action of sunlight on the skin converts these two compounds, respectively, to cholecalciferol (vitamin D₃) and ergocalciferol (vitamin D₂). Vitamin D is added to margarine, milk, and cereals for the benefit of those who may not get enough sunlight in winter. As little as 5 micrograms each day appear adequate for children. Because the body cannot excrete it, prolonged high intake can cause a toxic reaction including fatigue, nausea, and abnormal calcium accumulation.

vitamin D [′vīd·ə·mən ¦dē]

(biochemistry)

Either of two fat-soluble, sterol-like compounds, calciferol or ergocalciferol (vitamin D₂) and cholecalciferol (vitamin D₃); occurs in fish liver oils and is essential for normal calcium and phosphorus deposition in bones and teeth. Also known as antirachitic vitamin.

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No references found	Vitalii Sevastianov Vitalii Titov Vitalii Tsvirko Vitalii Valentinovich Bianki Vitalii Volskii Vitalii Zakrutkin Vitalii Zholobov Vitaliiiakovlevich Vilenkin Vitalism Vitality Vitallium vitamer vitamin vitamin A vitamin A aldehyde vitamin B complex vitamin B1 vitamin B12 vitamin B2 vitamin B2phosphate vitamin B3 vitamin B6 vitamin B6hydrochloride vitamin C vitamin D vitamin D D3 vitamin D3 Vitamin Deficiency vitamin E Vitamin Feeds vitamin G Vitamin Industry vitamin K vitamin K1 vitamin P vitamin P complex Vitamin Preparations Vitamin Therapy Vitamin-Bearing Plants Vitamins Vitas, Juozas Vitásek, František Vitasek, Frantisek Vitaui Ginzburg Vitaui Lazarevich Ginzburg Vitautas Algirdo Chekanauskas Vitautas Iurkunas Vitautas Iustino Bredikis Vitautas Juliono Klova Vitautas Prano Žalakjavcius Vitautas Prano Zalakjavcius	vitamin C vitamin C C-responsive dermatosis vitamin C C-responsive dermatosis vitamin C C-responsive dermatosis Vitamin C deficiency Vitamin C deficiency Vitamin C deficiency Vitamin C deficiency Vitamin C Equivalent Antioxidant Capacity vitamin C intoxication Vitamin C Overdose Vitamin C Overdose Vitamin C Overdose Vitamin C2 Vitamin C2 Vitamin C2 vitamin D vitamin D vitamin D Vitamin D - Binding Globulin Vitamin D - Binding Protein vitamin D 2 vitamin D 3 Vitamin D analogue Vitamin D analogue Vitamin D analogue Vitamin D and Calcium Deficient vitamin D D2 vitamin D D2 vitamin D D2 vitamin D D3 Vitamin D deficiency Vitamin D deficiency Vitamin D deficiency Vitamin D Deficiency/Insufficiency Vitamin D Dependency Vitamin D Dependency Rickets Type I Vitamin D Excess Vitamin D Excess Vitamin D Excess Vitamin D hormone vitamin D intoxication vitamin D milk vitamin D milk vitamin D milk vitamin D milk Vitamin D poisoning Vitamin D receptor Vitamin D Receptor Gene Vitamin D Receptor Gene Polymorphism Vitamin D Receptor Resource Vitamin D Receptor/Retinoic Acid X Receptor Vitamin D resistant rickets Vitamin D resistant rickets (X-linked) Vitamin D-2 Vitamin D-2 Vitamin D-3 Vitamin D-3 Vitamin D-3 Vitamin d-binding protein Vitamin d-binding protein

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vitamin C
vitamin C C-responsive dermatosis
vitamin C C-responsive dermatosis
vitamin C C-responsive dermatosis
Vitamin C deficiency
Vitamin C deficiency
Vitamin C deficiency
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Vitamin C Equivalent Antioxidant Capacity
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Vitamin D - Binding Protein
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vitamin D D3

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Vitamin D deficiency
Vitamin D deficiency
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Vitamin D Receptor Gene
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Vitamin D Receptor/Retinoic Acid X Receptor
Vitamin D resistant rickets
Vitamin D resistant rickets (X-linked)
Vitamin D-2
Vitamin D-2
Vitamin D-3
Vitamin D-3
Vitamin D-3
Vitamin d-binding protein
Vitamin d-binding protein

vitamin D (redirected from vitamin D D3)

vitamin D

vitamin D
(redirected from vitamin D D3)