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vitamin D
noun
- any of the several fat-soluble, antirachitic vitamins D 1 , D 2 , D 3 , occurring in milk and fish-liver oils, especially cod and halibut, or obtained by irradiating provitamin D with ultraviolet light, essential for the formation of normal bones and teeth.
vitamin D
noun
- 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
- Any of a group of fat-soluble sterols necessary for normal bone growth, especially vitamin D 2 ( ergocalciferol ) and vitamin D 3 ( cholecalciferol ). Vitamin D is found in milk, fish, and eggs and can be produced in the skin on exposure to sunlight. A deficiency of vitamin D in the diet causes rickets in children.
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Word History and Origins
Origin of vitamin D1
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Example Sentences
I take calcium and vitamin D supplements, but prescription medications are generally only for women in menopause.
The irony in it all is that our bodies need, if not crave, Vitamin D—and more than a chewable tablet.
Spring is starting to arrive, and we plan to soak up as much sun as our vitamin-D-deficient bodies can handle.
Vitamin D3—Most of you reading this are probably vitamin D deficient if you wear clothes and work indoors.
One more thing, take it in the morning otherwise it can disrupt your sleep since vitamin D and melatonin are inversely related.
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