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Heavy Metal Index

A Randomized Controlled Trial on the Effects of Jujube Fruit on the Concentrations of Some Toxic Trace Elements in Human Milk

Source

This 2016 randomized controlled trial from Isfahan, Iran, evaluated whether jujube fruit (Ziziphus jujuba) supplementation reduces toxic element concentrations in breast milk of lactating mothers.

Page snapshot
Cited by5 pages
Metals measured3
Evidence tierA
Year2016

Overview

This 2016 randomized controlled trial from Isfahan, Iran, evaluated whether jujube fruit (Ziziphus jujuba) supplementation reduces toxic element concentrations in breast milk of lactating mothers. The key finding was no significant reduction across Pb, Cd, or As, but the study provides baseline breast milk metal concentrations for an industrial Iranian city.

Key numbers

Baseline breast milk concentrations (µg/L, mean ± SD, n=40 total):

MetalMean ± SDNotes
Pb29.49 ± 16.66Industrialized city (Isfahan)
Cd4.65 ± 3.51
As1.23 ± 0.63

These baseline values (especially Pb at ~30 µg/L) reflect environmental contamination in Isfahan, an industrial steel- and petrochemical-producing city, and are elevated relative to Western European reference populations.

Intervention results: No statistically significant change in Pb, Cd, or As concentrations after 8 weeks of jujube fruit supplementation.

Methods

RCT; 40 mothers; 8 weeks; jujube 15 g/day vs control. Breast milk collected at baseline and 8 weeks. Method for metal analysis not specified in available excerpt (likely FAAS or ICP-MS). Wet weight.

Implications

Health: Isfahan maternal Pb in breast milk (~30 µg/L) is notably higher than European reference values (<5 µg/L). Industrial city environmental Pb exposure is a significant modifier of breast milk Pb.

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The five most recent substantive edits to this page, classified major (evidence or structure moved), correction (a published value or statement was wrong and has been fixed), or minor (narrative rewritten without changing the underlying evidence). Each description is derived from what the edit did to this page; the linked commit is the authoritative record, routine regeneration passes are excluded, and the full version history lives in git. When DOI minting comes online (see schema docs), each entry below will also link to a version-pinned DataCite DOI.

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a8052bb2026-08-09major6 sections added; narrative text revised