Findings

What do systematic reviews say?

6 questions · 6 findings · 4 reviews

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No studies found 4 · 66.7%GRADE not reported 1 · 16.7%Very low 0 · 0%Low 1 · 16.7%Moderate 0 · 0%High 0 · 0%

Vitamin D vs placebo or no intervention

Health‐related quality of life · healthy participants or recruited among the general population; individuals diagnosed with a specific disease in a stable phase or with…

The review found no eligible studies for this question.

1 finding from 1 review

Vitamin D supplementation for prevention of cancer in adults 2014 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Vitamin D vs placebo or no intervention

Health‐related quality of life · people with chronic liver diseases

1 finding from 1 review

Vitamin D supplementation for chronic liver diseases in adults 2021 · Cochrane Headline outcomes only
no estimate extracted
0 studies · 0 participants
GRADE not reported

Vitamin C vs placebo

Health‐related quality of life (HRQL) · people with asthma

1 finding from 1 review

Vitamin C for asthma and exercise‐induced bronchoconstriction 2013 · Cochrane Headline outcomes only
no estimate extracted
1 study · 201 participants
Low

Vitamin C vs placebo

Health‐related quality of life (HRQL) · adults and children with exercise‐induced bronchoconstriction/asthma

The review found no eligible studies for this question.

1 finding from 1 review

Vitamin C for asthma and exercise‐induced bronchoconstriction 2013 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Vitamin D plus calcium vs vitamin D

Health‐related quality of life

The review found no eligible studies for this question.

1 finding from 1 review

Vitamin D, calcium or a combination of vitamin D and calcium for the treatment of nutritional rickets in children 2020 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Vitamin D plus calcium vs calcium

Health‐related quality of life

The review found no eligible studies for this question.

1 finding from 1 review

Vitamin D, calcium or a combination of vitamin D and calcium for the treatment of nutritional rickets in children 2020 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found