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Related Experiment Videos

Iron absorption.

R W Charlton, T H Bothwell

    Annual Review of Medicine
    |January 1, 1983
    PubMed
    Summary
    This summary is machine-generated.

    Dietary iron absorption is limited, especially in developing nations, leading to widespread iron deficiency. Fortification of staple foods is promising but requires careful monitoring to prevent iron overload in susceptible individuals.

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    Area of Science:

    • Nutrition Science
    • Public Health
    • Genetics

    Background:

    • Iron absorption is regulated by body needs but often insufficient due to low dietary iron bioavailability, particularly nonheme iron.
    • Increased iron requirements during growth, menstruation, or pregnancy exacerbate deficiencies, especially in developing countries.
    • Nutritional iron deficiency remains a significant global health issue.

    Purpose of the Study:

    • To assess the potential and challenges of fortifying dietary staples with iron.
    • To highlight the need for monitoring systems in iron fortification programs.

    Main Methods:

    • Review of factors influencing nonheme iron bioavailability in food.
    • Analysis of challenges in applying fortification strategies, especially in developing regions.

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  • Consideration of genetic factors affecting iron absorption.

    • Main Results:

    • Knowledge exists to improve nonheme iron bioavailability through food fortification.
    • Implementation of fortification is challenging, particularly in resource-limited settings.
    • Idiopathic hemochromatosis, linked to an HLA-recessive gene, may be more common than previously thought.

    Conclusions:

    • Dietary staple fortification can address widespread iron deficiency.
    • Effective fortification requires managing the risk of iron overload in genetically predisposed individuals.
    • Monitoring systems are essential for safe and effective iron fortification programs.