vitamin D2

American  

noun

1. calciferol.

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vitamin D2 British  

noun

1. another name for calciferol

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vitamin D2 Scientific  

1. A white crystalline sterol produced by ultraviolet irradiation of ergosterol and also occurring naturally in fungi and some fish oils. Vitamin D ₂ is the form of vitamin D generally used as a dietary supplement. Also called calciferol, ergocalciferol. Chemical formula: C ₂₈ H ₄₄ O.

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Example Sentences

See Examples For:

vitamin D2

Compared with people who did not receive vitamin D2, those taking D2 had significantly lower concentrations of 25-hydroxyvitamin D3.

From Science Daily ● Oct. 8, 2026

Researchers have proposed that increasing vitamin D2 could therefore increase the disposal of existing 25-hydroxyvitamin D3.

From Science Daily ● Oct. 8, 2026

There are two forms of vitamin D supplements available: vitamin D2 and vitamin D3.

From Science Daily ● May 23, 2026

I am confused about the difference between vitamin D2 and vitamin D3.

From Seattle Times ● Apr. 10, 2024

You can get a version made from lichen, or choose vitamin D2.

From The Guardian ● Nov. 24, 2018

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