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Ferritin

Meaning

Ferritin is a crucial globular protein complex that functions as the primary intracellular storage unit for iron, safely sequestering it to prevent oxidative damage. Serum ferritin levels serve as the most reliable clinical biomarker for estimating the body’s total iron stores. In the context of hormonal health, ferritin status is particularly relevant because iron is an essential cofactor for the enzymes involved in thyroid hormone synthesis and metabolism. Deficient or excessive levels can therefore disrupt the delicate balance of the endocrine system.