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Babies of anaemic mothers show smaller brain volumes

2 sourcesUpdated 9 Sept 2026, 4:00 am Coverage regionsGlobal
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Researchers found infants born to mothers with mild anaemia had a four percent lower total brain volume on average.

The study reported differences in the putamen, caudate nucleus, and corpus callosum, which are linked to movement, learning, and emotion.

The research followed more than 300 mothers and babies in Cape Town.

It was conducted by researchers from King’s College London and the University of Cape Town.

Why it mattersThe study suggests maternal anaemia may affect infant brain development, shaping pregnancy screening and treatment priorities.
More context

The team used novel low-field portable MRI scanners alongside traditional machines to scan infant brains.

The study authors say improved screening for anaemia and iron deficiency during pregnancy is needed, and suggest the structural differences could potentially lead to cognitive difficulties by school age.

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What coverage agrees on

The reporting agrees that a study found smaller brain volumes in babies born to mothers with mild anaemia, based on scans of mothers and infants in Cape Town.

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What remains uncertain is how these structural differences may affect children as they grow, since the study authors only suggest possible cognitive difficulties by school age.

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Neutral1

The reporting says a study in Brain Communications found babies born to mothers with mild anaemia had smaller brains on average. Researchers followed more than 300 mothers and babies in Cape Town and used portable MRI scanners to examine infant brains. It notes differences in brain regions linked to movement, learning, and emotion, while stopping short of claiming proven long-term effects.

Distinctive emphasis — reported claim, not independently verified.Sources: The Guardian
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The Guardian Neutral framing Reported

Babies born to anaemic mothers have smaller brains, study finds

Quick source take

A recent study published in Brain Communications reports that infants born to mothers with mild anaemia exhibit a four percent reduction in total brain volume, with specific differences noted in regions linked to movement, learning, and emotion. Researchers from King’s College London and the University of Cape Town followed more than three hundred mothers and babies in South Africa, utilizing portable MRI technology to scan infant brains. The study authors suggest these structural differences could potentially translate into cognitive difficulties as children reach school age and emphasize the critical need for improved screening and iron supplementation during pregnancy.