Mastering Nutrition · Chris Masterjohn, PhD

How Much Iron Can We Absorb At Once? | Masterjohn Q&A Files #320

·28 min·2 clips
Chris Masterjohn reveals why iron intake often has no relation to your body's iron status.
Chris Masterjohn answers a listener's question about iron absorption, explaining how hepcidin regulates iron status and why high-dose supplements can be effective but wasteful. He critiques studies on alternate-day dosing and offers practical advice on timing and diet to optimize absorption.

As heard by us

A clear look at iron dosing, hepcidin, and why timing may matter less than it first appears.

This segment keeps the focus on hepcidin, fractional absorption, and what iron timing can and cannot change. It moves from the hormone's short-term effect on uptake to a larger point: repeated dosing can make the timing question look less dramatic than it first seems.

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Why you'd press play

If you're weighing high-dose iron or alternate-day dosing, this gives you a mechanistic reality check on hepcidin and absorption.

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