symptom
Low Iron Symptoms: Why You Are Tired All the Time (Ferritin Fatigue)
Differentiating iron-deficiency fatigue from burnout or stress in U.S. women, symptom checklists, and why ferritin testing provides answers.
By Nourish By Nutrients Editorial Team •
Updated: October 2026
Key Evidence Takeaways:
- Iron deficiency impairs tissue oxygenation, causing persistent physical exhaustion.
- Fatigue with shortness of breath, dizziness, or cold hands warrants blood work.
- Ferritin and CBC tests clarify whether low iron is the root cause.