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Ingredient · Vitamin Mineral

Cholecalciferol (vitamin d3)

Cleaner · 8/10, higher is cleaner

How we reached this

Cholecalciferol (vitamin D3) — fat-soluble vitamin. NIH ODS RDA 600-800 IU/day adults; deficiency widespread in US population. Better absorbed than D2 (ergocalciferol).

Sources · 1

Also listed as

cholecalciferol (vitamin d3)

Products containing this · 2

About this rating

Ratings run 1–10, higher is cleaner, and are set editorially against the sources above — see the methodology page for how an ingredient rating becomes part of a product score. Last reviewed 2026-05-25.