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
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Getting an adequate supply of vitamin D may help balance your body’s production and response to dopamine.13 Sunlight exposure is one of the most efficient ways for your body to produce vitamin D.
In addition to its impact on vitamin D, sunlight is known to improve mood for most people.
—
Heidi Moawad, Verywell Health, 6 June 2025
Maitake mushrooms are a great source of vitamin D, and incorporate Shiitake into your diet for vitamin B6.
—Boutayna Chokrane, Wired News, 28 May 2025
The research team emphasized that more work is needed to determine how vitamin D impacts aging in different populations and whether these effects endure over longer timeframes.
—Reem Amro, FOXNews.com, 26 May 2025
High vitamin D levels can also cause your kidneys and heart to stop working properly.
—Health, 20 May 2025
See All Example Sentences for vitamin D
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Heidi Moawad, Verywell Health, 6 June 2025
Maitake mushrooms are a great source of vitamin D, and incorporate Shiitake into your diet for vitamin B6.
—Boutayna Chokrane, Wired News, 28 May 2025
The research team emphasized that more work is needed to determine how vitamin D impacts aging in different populations and whether these effects endure over longer timeframes.
—Reem Amro, FOXNews.com, 26 May 2025
High vitamin D levels can also cause your kidneys and heart to stop working properly.
—Health, 20 May 2025
See All Example Sentences for vitamin D
Cite this Entry
“Vitamin D.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vitamin%20D. Accessed 12 Jun. 2025.
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