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Related Experiment Videos

Dietary intake and bioavailability of trace elements.

M Abdulla1, A Behbehani, H Dashti

  • 1Faculty of Medicine, Baqai Medical College, Karachi, Pakistan.

Biological Trace Element Research
|July 1, 1989
PubMed
Summary
This summary is machine-generated.

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True dietary intake of essential trace elements like potassium and zinc may be insufficient in Sweden. This study highlights potential marginal deficiencies in affluent populations, impacting nutritional status.

Area of Science:

  • Nutritional Science
  • Human Metabolism
  • Dietary Assessment

Background:

  • Accurate assessment of trace element intake is crucial for understanding nutritional importance.
  • Conventional dietary assessment methods often fail to capture true intake from prepared meals.
  • Trace element metabolism is influenced by intake levels and bioavailability.

Purpose of the Study:

  • To investigate the dietary intake of key trace elements in prepared meals across different age groups in Sweden.
  • To compare actual trace element intake with recommended dietary allowances (RDAs).
  • To emphasize the role of bioavailability and dietary interactions in trace element nutrition.

Main Methods:

  • Utilized the duplicate portion technique for accurate dietary intake assessment.

Related Experiment Videos

  • Analyzed trace element levels in prepared meals consumed by children, adults, and the elderly.
  • Considered factors influencing bioavailability, including chemical form and other dietary components.

    • Main Results:

    • Dietary intake of potassium, magnesium, zinc, copper, and selenium was found to be low compared to RDAs.
    • Results suggest a potential marginal deficiency of several trace elements in the Swedish population.
    • Bioavailability is a critical factor, influenced by dietary matrix and interactions.

    Conclusions:

    • A significant portion of the population in affluent countries may have marginal trace element deficiencies.
    • Understanding dietary interactions is essential for improving nutritional status.
    • The duplicate portion technique provides a more accurate measure of true dietary intake.