Single Hair Analysis by X-Ray Fluorescence Spectrometry Detects Small Changes in Dietary Zinc Intake: A Nested Randomized Controlled Trial

March 2023 in “ Frontiers in Nutrition ”

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

X-ray fluorescence spectrometry zinc Zn:S ratio hair analysis XRF zinc intake

Studysummary This study found that a modest increase in dietary zinc over six months resulted in a detectable increase in sulfur and zinc counts in individual hairs, suggesting a non-invasive method to monitor zinc intake effects.

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