Miscarriage

Overview

Neither Vitamin A taken before or during early pregnancy nor Vitamin C alone or combined with other supplements appears to lower miscarriage or stillbirth risk based on available studies. Both supplements have low-rated evidence with medium trust from single studies each.

See the evidence reviews below for details on these trials.

Effect graph

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Relevant supplements

Relevant supplements sorted by DEX Score.


Vitamin C	★★★★★	Low
Vitamin A	★★★★★	Low

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Studies

Find individual evidence reviews for supplements sorted by DEX Score.

2 supplements for rated at least stars. All purchase bands. No minimum star filter.

Vitamin AView supplement →

Reconsider purchase★★★★★

How we scored this

Effect SizeLowEvidenceMediumTrustMedium

Evidence Review

Taking vitamin A by mouth before or during early pregnancy does not lower the chance of miscarriage or stillbirth.

Browse 1 study1 meta-analysis

MetaVitamin supplementation for preventing miscarriage2016n=276,820

A meta-analysis of 276820 participants found that multivitamin supplementation There was evidence of a decrease in the risk for stillbirth among women receiving multivitamins plus iron and folic acid compared iron and folate only groups (RR 0.92, 95% CI 0.85 to 0.99, 10 trials, 79,851 women; high-quality evidence).

Effect: Benefit
Population: Women
Participants: 276,820

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