The Role of Hemoglobin and Anemia in Preventing Dementia—Revisiting a Well-Known Protein - Takeaways - MDSpire

The Role of Hemoglobin and Anemia in Preventing Dementia—Revisiting a Well-Known Protein

  • By

  • Frank J. Wolters

  • April 17, 2026

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  • 1

    Anemia affects 25% of the global population and is linked to a 66% increased risk of developing dementia over time.

  • 2

    The Swedish National study on Aging and Care in Kungsholmen provides robust data supporting the association between anemia and dementia.

  • 3

    Low hemoglobin levels correlate with higher dementia risk, particularly below a threshold of approximately 14 g/dL.

  • 4

    Anemia interacts with plasma biomarkers of neurodegenerative disease, increasing dementia risk 3- to 4-fold when both are present.

  • 5

    Further studies are needed to explore the mechanisms linking anemia, hemoglobin levels, and dementia, particularly regarding iron and B vitamin metabolism.

Original Source(s)

The Role of Hemoglobin and Anemia in Preventing Dementia—Revisiting a Well-Known Protein

  • by Frank J. Wolters

  • April 17, 2026

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