vitamin D
noun
: any or all of several fat-soluble vitamins chemically related to steroids, essential for normal bone and tooth structure, and found especially in fish-liver oils, egg yolk, and milk or produced by activation (as by ultraviolet irradiation) of sterols: such as
a
or vitamin D2
: calciferol
b
or vitamin D3
: cholecalciferol
Examples of vitamin D in a Sentence
Recent Examples on the Web
Dairy milk is an important source of protein, calcium, vitamin D and other nutrients.
—
Clare Mulroy, USA TODAY, 21 Apr. 2024
Supplements have also been shown to reduce the risk of respiratory infections in people who are vitamin D deficient.
—Sarah Anzlovar, Ms, Verywell Health, 19 Apr. 2024
When vitamin D levels are deficient, the body can’t normally spur the growth phase of the hair cycle.
—Allison Futterman, Discover Magazine, 16 Apr. 2024
Similarly, look at vitamin D supplements that can come in dosages of 5,000 IU, or international units – a fact also often prominently displayed on packaging.
—Katie Suleta, The Conversation, 5 Apr. 2024
This is considered a higher potency product with 2000 IU of vitamin D in one easy soft gel.
—Casey Seiden, Parents, 22 Mar. 2024
The company said that research has shown that toddler milk can provide nutrition and help improve the diet of children age 1 and older, reducing the risk of iron and vitamin D deficiency.
—Heather Vogell, ProPublica, 21 Mar. 2024
New research suggests that taking calcium and vitamin D supplements together may be both beneficial and risky for postmenopausal women.
—Maggie O'Neill, Health, 21 Mar. 2024
Bones need vitamin D to absorb calcium, magnesium for structural integrity and vitamin K for the formation of osteocalcin, a type of protein found in bone.
—Sheah Rarback, Miami Herald, 30 Jan. 2024
Clare Mulroy, USA TODAY, 21 Apr. 2024
Supplements have also been shown to reduce the risk of respiratory infections in people who are vitamin D deficient.
—Sarah Anzlovar, Ms, Verywell Health, 19 Apr. 2024
When vitamin D levels are deficient, the body can’t normally spur the growth phase of the hair cycle.
—Allison Futterman, Discover Magazine, 16 Apr. 2024
Similarly, look at vitamin D supplements that can come in dosages of 5,000 IU, or international units – a fact also often prominently displayed on packaging.
—Katie Suleta, The Conversation, 5 Apr. 2024
This is considered a higher potency product with 2000 IU of vitamin D in one easy soft gel.
—Casey Seiden, Parents, 22 Mar. 2024
The company said that research has shown that toddler milk can provide nutrition and help improve the diet of children age 1 and older, reducing the risk of iron and vitamin D deficiency.
—Heather Vogell, ProPublica, 21 Mar. 2024
New research suggests that taking calcium and vitamin D supplements together may be both beneficial and risky for postmenopausal women.
—Maggie O'Neill, Health, 21 Mar. 2024
Bones need vitamin D to absorb calcium, magnesium for structural integrity and vitamin K for the formation of osteocalcin, a type of protein found in bone.
—Sheah Rarback, Miami Herald, 30 Jan. 2024
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'vitamin D.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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“Vitamin D.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vitamin%20D. Accessed 26 Apr. 2024.
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