How Does Ferritin Affect Hair Loss?

Low ferritin is a common cause of hair thinning or hair loss, particularly in women. Iron is essential for producing keratin, a protein that supports healthy hair growth. When ferritin levels drop, the body prioritizes critical functions like oxygen transport over hair production, leading to shedding. Restoring ferritin through diet or supplementation can help reverse hair loss over time. High ferritin, linked to inflammation, may also contribute to hair thinning, necessitating further evaluation.