Why this matters

Iron is about energy, not just blood

Most people — and most GPs — treat iron as an anaemia issue: if haemoglobin is fine, iron is fine. That’s the trap.

Iron sits at the heart of how every cell makes energy. So a client can have “normal” bloods and still be exhausted, cold, breathless in training and slow to recover — the classic tired-but-not-anaemic picture, most often a woman of menstruating age.

This module reads iron the way it actually fails: stores empty first, energy drops next, anaemia comes last. Catch it at stage one and you change how someone feels.

Iron sits at the centre of haemoglobin — and far beyond it