PrometheusGeneral

Vitamin D: dosage and how to take it and Vitamin D

Each entry’s own grades, side by side. A grade says how strong the evidence is for one outcome — it does not rank one entry over the other.

Dosage

Vitamin D: dosage and how to take it

1,000–2,000 IU (25–50 µg) D3 daily with a fatty meal.

Grade A0 graded outcomesrevised Jul 10, 2026

Assembled by the app from other entries in this library. It adds no evidence of its own — follow the links to the entries it draws on.

Compound or practice

Vitamin D

A steroid hormone precursor that most temperate-latitude adults run low on — worth correcting, oversold as a cure-all.

Grade A5 graded outcomesrevised Jul 10, 2026

A structured monograph in Prometheus's bundled library. Its grades are the monograph's own reading of the evidence, not a peer-reviewed review.

Swap the two

Graded in both

Outcomes are matched by name. Two entries can describe the same outcome in different words, so one listed further down may still be graded in the other.

No outcome has the same name in both entries. They may still overlap under different wording — read the two lists below.

Graded only in Vitamin D: dosage and how to take it

None — every outcome it grades is graded in both.

Graded only in Vitamin D

  • Correcting deficiency (25(OH)D) Large effectEvidence grade A
  • Fracture / fall risk (deficient elderly + calcium) Moderate effectEvidence grade B
  • Respiratory infection risk Small effectEvidence grade C
  • Cancer / CVD prevention (replete adults) Trivial effectEvidence grade D
  • Type 2 diabetes prevention Trivial effectEvidence grade D

Conditions

Only in Vitamin D: dosage and how to take it

None.

Only in Vitamin D

What each entry says about the other

  • Vitamin D: dosage and how to take it’s entry · Goes with: Full Vitamin D monograph

Both columns are read from the entries as they stand in this library. A comparison is not advice to take either one, and it is no substitute for a clinician who knows the person.