Why your heart and brain need selenium

Original Title

Selenium-dependent and non-selenium-dependent glutathione peroxidases in human tissue extracts.

Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms

Summary

Your body has two kinds of antioxidant enzymes that use glutathione to fight damage. One needs selenium, the other doesn't.

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Surprising Findings

The heart and brain rely 100% on selenium-dependent enzymes — no alternative pathway exists.

Most people assume the body has backup systems for critical functions — but here, the most vital organs have zero redundancy in their primary antioxidant defense.

Practical Takeaways

Eat 2–3 Brazil nuts daily — they provide more than 100% of your daily selenium needs.

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Publication

Journal

Biochimica et biophysica acta

Year

1983

Authors

F. Carmagnol, P. Sinet, H. Jerome

188 citations
Analysis v1