Why Checking Ferritin Levels Matters for Long-Term Fatigue

  • 29 Aug 2025

Key highlights or summary

  • Low ferritin levels deplete iron stores, impairing oxygen delivery and causing persistent fatigue.
  • Symptoms of low ferritin include dizziness, muscle weakness, and headaches.
  • Early detection of low ferritin can prevent severe deficiencies and enable targeted treatments.
  • AWomen with heavy menstruation, athletes, and older adults are especially susceptible to low ferritin levels.
  • Dietary changes, iron supplements (with medical advice), and lifestyle adjustments can help restore ferritin levels and relieve fatigue. 

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    Frequently Asked Questions

    Ferritin is a protein that stores iron in your body. Checking ferritin levels helps assess your iron reserves and detect early signs of deficiency.

    Low ferritin means your body lacks stored iron, leading to reduced oxygen delivery to cells, which can cause persistent fatigue and weakness.

    Symptoms may include chronic fatigue, dizziness, headaches, hair loss, brittle nails, and difficulty concentrating.

    You can boost ferritin by consuming iron-rich foods (like spinach, lentils, and red meat), taking iron supplements if prescribed, and improving iron absorption with vitamin C.

    If you experience prolonged fatigue, unexplained weakness, hair loss, or frequent dizziness, it's advisable to get a ferritin blood test to rule out iron deficiency.

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