Supplement reference
Vitamin D3
A source-linked reference on Vitamin D3, evidence, safety and product identity. Sources checked 6 September 2026.
Source and review status
Published sources checked
Sources checked on: 6 September 2026
Qualified clinical review: Pending. This page has not been clinically reviewed.
About this source check
AI-assisted editorial source checking covers the cited material and its stated limits. It is not a systematic review, verification of a supplied product, or clinical sign-off.
Editorial role: InfoAddict. Last material change: 6 September 2026. Next source review: 6 March 2027.
Ingredient and preparation
Vitamin D3 is cholecalciferol, a vitamin D form used in food fortification and supplements.
Sources: National Institutes of Health, Office of Dietary Supplements
Evidence and limits
NIH describes vitamin D’s role in calcium absorption and bone health, as well as the role of blood tests in assessing status. It does not support using a supplement label as a diagnosis or a universal prevention claim.
Sources: National Institutes of Health, Office of Dietary Supplements
Safety and a useful record
Vitamin D can be harmful in excess. Total intake, laboratory results, kidney context and medicines should inform a clinical conversation.
Sources: National Institutes of Health, Office of Dietary Supplements, National Center for Complementary and Integrative Health
Record vitamin D form and amount, test date and reference range, sunlight or diet context and all other products.
Sources: National Center for Complementary and Integrative Health
Published sources
- Vitamin D: Fact Sheet for Consumers
National Institutes of Health, Office of Dietary Supplements. Current NIH ODS reference; accessed 6 September 2026.
Supports: Vitamin D functions, blood-test context and excess-risk information.
- Safe Use of Complementary Health Products and Practices
National Center for Complementary and Integrative Health. Current NCCIH reference; accessed 6 September 2026.
Supports: General safety, interaction and contamination context. It does not establish ingredient-specific benefit.
Change history
| Date | Change | Clinical-review status |
|---|---|---|
| 6 September 2026 | Source-linked reference published | Pending |
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