Single hair analysis by X-ray fluorescence spectrometry detects small changes in dietary zinc intake: A nested randomized controlled trial.

Christopher J Frederickson,David E B Fleming,Dan Asael,Mukhtiar Zaman, Randal Ferguson,Michaela G Kaiser,Bryn D Rankin,Kassia M M Schenkels, Andrew I T Hess, Andrianna R Scott,Cathleen J M Frederickson,Jonathan K Sinclair,Nicola M Lowe

Frontiers in nutrition（2023）

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摘要

baseline = 0.42 ± 0.10 and endpoint = 0.45 ± 0.08/intervention: baseline = 0.41 ± 0.08 and endpoint = 0.45 ± 0.08). A modest increase in dietary zinc over 6 months resulted in a detectable increase in both sulfur and zinc counts in individual hairs measured using XRF. This offers a sensitive, non-invasive method to monitor changes within subjects in response to dietary zinc interventions.

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X-ray fluorescence spectrometry,hair,zinc,zinc biofortification,zinc biomarker

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