Findings

What do systematic reviews say?

Refine by population, intervention, comparison or outcome
More filters
Evidence found and GRADE certainty

80 questions · 82 findings · 33 reviews

No studies found 18 · 22%GRADE not reported 3 · 3.7%Very low 12 · 14.6%Low 20 · 24.4%Moderate 14 · 17.1%High 15 · 18.3%

Vitamin D vs placebo or no intervention

Cancer mortality in trials using vitamin D3 (cholecalciferol) ( · healthy participants or recruited among the general population; individuals diagnosed with a specific disease in a stable phase or with…

Vitamin D may leads to lower cancer mortality in trials using vitamin D₃(cholecalciferol) compared with placebo or no intervention (low certainty).

1 finding from 1 review

Intervention not reported

Cancer mortality in trials using vitamin D3 (cholecalciferol) ( · adults

The intervention probably leads to lower cancer mortality in trials using vitamin D3 (cholecalciferol) ( (moderate certainty).

1 finding from 1 review

Intervention not reported

All‐cause mortality in trials using vitamin D3 (cholecalciferol) ( · adults

The intervention probably leads to lower all‐cause mortality in trials using vitamin D3 (cholecalciferol) ( (moderate certainty).

1 finding from 1 review

Intervention not reported

Cardiovascular mortality in trials using vitamin D3 (cholecalciferol) ( · adults

The intervention showed no clear difference in cardiovascular mortality in trials using vitamin D3… (low certainty).

1 finding from 1 review