Supplement Facts Generator

Vitamin D

Last reviewed:

Vitamin D is declared on US Supplement Facts panels in mcg. Its Daily Value for adults and children 4 years and older is 20 mcg.

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Also known as
vitamin D3, cholecalciferol, vitamin D2, ergocalciferol
Typical label unit
mcg

Reference values by market

Market Reference value Source Status
United States — Daily Value 20 mcg 21 CFR 101.9
21 CFR 101.9(c)(8)(iv) — RDI table, adults and children ≥ 4 years (eCFR up to date as of 10/01/2026)		 Verified
United Kingdom — NRV 5 mcg Retained Reg. 1169/2011
Regulation (EU) No 1169/2011, Annex XIII, Part A, point 1		 Verified
European Union — NRV 5 mcg Reg. (EU) 1169/2011, consolidated 01.04.2025 (amended by M1 1155/2013, M2 78/2014, M3 2015/2283, M4 2024/2512 — none amend Annex XIII)
Reg. (EU) 1169/2011 Annex XIII Part A point 1 (verified 2026-10-04)		 Verified

Forms found in supplements

  • Vitamin D3 (cholecalciferol)
  • Vitamin D2 (ergocalciferol)
  • Vitamin D3 from lichen

Source: NIH ODS fact sheet (updated 2026-10-02)

On a Supplement Facts label, the source form can be shown in parentheses after the nutrient name, for example “(as …)”. In the generator, use the Source / form field. (21 CFR 101.36 (d))

Labeling notes

  • US labels declare vitamin D in mcg; the amount may also be shown in IU in parentheses, voluntarily. — 21 CFR 101.36 21 CFR 101.36(b)(2)(ii)(B)

Unit conversions

  • 1 IU vitamin D = 0.025 mcg (40 IU = 1 mcg). — FDA guidance

This page describes how the ingredient is labeled. It does not make or support any health claim.

Sources

  1. Nutrition labeling of dietary supplements — U.S. Food and Drug Administration (21 CFR 101.36)
  2. Guidance for Industry: Converting Units of Measure for Folate, Niacin, and Vitamins A, D, and E on the Nutrition and Supplement Facts Labels — U.S. Food and Drug Administration (FDA guidance)
  3. Vitamin D — Health Professional Fact Sheet — NIH Office of Dietary Supplements (NIH ODS fact sheet (updated 2026-10-02))