vitamin D3

noun

a D vitamin, C 27 H 43 OH, occurring in fish-liver oils, that differs from vitamin D 2 by slight structural differences in the molecule.

vitamin D3

noun

another name for cholecalciferol

vitamin D3

A colorless, crystalline steroid hormone that the body synthesizes in the skin when its precursor, a derivative of cholesterol, is irradiated by sunlight. Vitamin D ₃ is also found in fish-liver oils, irradiated milk, and all irradiated animal foodstuffs. Also called calciferol, cholecalciferol. Chemical formula: C ₂₇ H ₄₄ O.

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Example Sentences

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During the five years, 105 participants developed type 2 diabetes: 38 in the placebo group, 31 in the group receiving 40 micrograms of vitamin D3 per day, and 36 in the group receiving 80 micrograms of vitamin D3 per day.

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

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Vitamin D3, on the other hand, comes from animal sources like wool.

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"Based on our findings, we would recommend that all pregnant women consider a daily intake of at least 4400 IU vitamin D3 throughout their pregnancy, starting at the time of conception."

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My oncologist is a big believer in vitamin D3 supplements.

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vitamin D2 vitamin E

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