evidencegaps
Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

60 questions · 72 findings · 4 reviews · Headline outcomes only

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No studies found 12 · 16.7%GRADE not reported 0 · 0%Very low 8 · 11.1%Low 45 · 62.5%Moderate 4 · 5.6%High 3 · 4.2%

Dietary supplements vs placebo

Dill seed versus placebo Pain score · women with moderate or severe primary dysmenorrhoea
11 findings from 1 review
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Dietary supplements vs placebo

Relief of pain · women with moderate or severe primary dysmenorrhoea

Dietary supplements may leads to higher zataria versus placebo Pain relief compared with placebo (low certainty).

3 findings from 1 review

Dietary supplements vs placebo

Zinc sulphate versus placebo Adverse effects · women with moderate or severe primary dysmenorrhoea

It is very uncertain whether dietary supplements changes zinc sulphate versus placebo Adverse effects compared with placebo (very low certainty).

1 finding from 1 review

Dietary supplements vs placebo

Ginger versus placebo Adverse effects · women with moderate or severe primary dysmenorrhoea

It is very uncertain whether dietary supplements changes ginger versus placebo Adverse effects compared with placebo (very low certainty).

1 finding from 1 review

Dietary advice vs dietary advice plus oral nutritional supplements

Number of people admitted or re‐admitted to hospital · adults with disease‐related malnutrition

Dietary advice may leads to higher number of people admitted or re‐admitted to hospital compared with dietary advice plus oral nutritional supplements (low certainty).

1 finding from 1 review