Michael Greger: How to Get the Ideal Ferritin Level and Avoid Symptoms of Iron Deficiency

Key Takeaways

• Monitor ferritin levels – Aim for the ideal range of 15-50 ng/mL to balance iron needs without excess oxidative stress.
• Donate blood if ferritin is above 50 to safely reduce excess iron stores (especially important for postmenopausal women and men).
• Reduce meat consumption to lower heme iron intake, as the body regulates nonheme iron (from plants) more effectively.
• Don’t worry about low ferritin (under 15) unless anemia develops – studies show no negative health effects from low iron stores alone.
• Watch for anemia symptoms (fatigue, weakness) rather than focusing solely on ferritin levels below 15.

Notable Quotes

“Our body’s better able to regulate the absorption of the proper amount of nonheme iron, concentrated in plant foods, rather than the heme iron found predominantly in blood and muscle.”

Bottom Line

Keep ferritin between 15-50 by adjusting diet or donating blood if levels are high, but don’t stress about low ferritin unless anemia develops.

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