evidencegaps
Findings

What do systematic reviews say?

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

5 questions · 5 findings · 2 reviews · Pregnancy and Childbirth

Sort:Best matchNewestHighest certaintyDownload CSV
No studies found 2 · 40%GRADE not reported 0 · 0%Very low 0 · 0%Low 2 · 40%Moderate 1 · 20%High 0 · 0%

Vitamin E + vitamin C vs placebo

Any adverse effects of vitamin supplementation sufficient to stop supplementation · pregnant women

Vitamin C and vitamin E showed no clear difference in any adverse effects of vitamin supplementation sufficient to stop… compared with placebo (moderate certainty).

1 finding from 1 review

Vitamin A supplementation (200,000 to 400,000 IU) vs placebo or no treatment

Adverse effects on women: abdominal cramps · women in the postpartum period

Vitamin A supplementation (200,000 to 400,000 IU) showed no clear difference in maternal adverse effects after administration: abdominal pain compared with placebo or no treatment (low certainty).

1 finding from 1 review