Randomized trial · 2007

Iron treatment normalizes cognitive functioning in young women

L. E. Murray-Kolb, J. L. Beard. American Journal of Clinical Nutrition.

Treating iron deficiency in young women improved attention and memory on named tasks. This is a deficit-correction trial. It is not evidence that high ferritin is an executive stack.

Open source doi:10.1093/ajcn/85.3.778 PMID 17344500

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Fix a ferritin deficit and attention can move. Raise a normal ferritin and you have a supplement ad.

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What Causes What. “Iron treatment normalizes cognitive functioning in young women.” https://whatcauseswhat.org/papers/p-murray-kolb-2007 (atlas updated 2026-08-31).

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