Studies

CellWell record HH-476707

Dose-Dependent Alterations of the Human Gut Microbiome During Oral Iron Supplementation: A Randomized Study in Iron-Deficient Non-Anaemic Women

Morton G Schubert; Anaëlle Dentand; Maximilian Karczewski; Yasser Morsy; Felix Beuschlein; Michael Scharl; Pierre-Alexandre Krayenbuehl

2026

In plain language

In 30 iron-deficient non-anaemic women, 6 mg twice daily changed gut microbiome composition differently from 100 mg daily over four weeks, and gastrointestinal side effects occurred in 87% on the higher dose versus 7%.

Evidence
Established
Design
Randomized controlled trial

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