Vitamin D supplementation in pregnant or breastfeeding women or young children for preventing asthma.

What It Covers

Researchers studied Vitamin D, K2, Magnesium and Zinc in the context of pregnancy and breastfeeding: safety notes in this meta-analysis publication.

The researchers used the Cochrane risk of bias tool (RoB) to assess bias in the studies.

The researchers used GRADE to assess the certainty of the evidence.

Why It Was Studied

The researchers excluded trials recruiting populations with pre-existing conditions.

The researchers followed standard Cochrane methodological procedures, including using Cochrane's Screen4Me workflow.

Who the Included Studies Covered

PubMed indexes the participants as infants, young children and children, women only.

How the Review Was Done

The researchers searched CENTRAL, MEDLINE, Embase, ClinicalTrials.gov, the International Clinical Trials Registry Platform, and the Cochrane Airways and Skin Trial Registers.

The researchers checked the reference lists of relevant systematic reviews and meta-analyses.

The researchers contacted authors to obtain additional study information as needed.

Date of last search: October 2023.

What Was Measured

Their outcomes were: asthma, wheeze, atopic dermatitis, airway infections, allergic sensitisation, airway inflammation, and adverse events.

The subject headings attached to it are Asthma, Randomized Controlled Trials as Topic, Vitamin D, Breast Feeding, Dietary Supplements, Vitamins and Vitamin D Deficiency.

What This Means in Plain Language

This is a meta-analysis of Vitamin D, K2, Magnesium and Zinc in people with pregnancy and breastfeeding: safety notes.

Its findings take up roughly 18 sentences of the abstract and are left out here on purpose; the source paper is the place to read them.

The publication is from 2025 (The Cochrane database of systematic reviews), a journal based in England.

More context: the Vitamin D, K2, Magnesium and Zinc compound page, Pregnancy and breastfeeding: safety notes research.