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Trace elements in nutrition

I E Dreosti

    The Medical Journal of Australia
    |August 9, 1980
    PubMed
    Summary
    This summary is machine-generated.

    Marginal trace element deficiencies are more common than previously thought, impacting human nutrition and health. Increased attention to trace element status is crucial, especially during growth and stress.

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    Area of Science:

    • Human Nutrition and Biochemistry
    • Trace Element Metabolism

    Background:

    • Recent advances have elucidated trace element functions at the biochemical level.
    • Five new trace elements identified; relevance of microelements in human nutrition reassessed.
    • Deficiencies in iodine, iron, and fluorine remain significant public health issues requiring supplementation.

    Purpose of the Study:

    • To review current understanding of trace element importance in human nutrition.
    • To highlight newly recognized deficiencies and risk factors.
    • To emphasize the widespread nature of marginal trace element deficiencies.

    Main Methods:

    • Literature review of recent advances in trace element research.
    • Analysis of biochemical functions and nutritional relevance.

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  • Identification of factors contributing to deficiencies.

    • Main Results:

    • Suboptimal nutrition in chromium, copper, selenium, zinc, and vanadium suggested.
    • Genetic factors and conditioning agents implicated in deficiencies.
    • Zinc deficiency is particularly concerning due to rapid onset and severe consequences on growing tissues.
    • Food processing and lower bioavailability from plant sources contribute to deficiencies.
    • Marginal deficiencies are more widespread than previously appreciated.

    Conclusions:

    • Trace element status requires greater attention, particularly in cases of poor physical condition, vigor, and active anabolism.
    • Vulnerability of fetal tissues to trace element deficits highlighted.
    • Understanding trace element roles is critical for optimizing human health and nutrition.