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Mineral interactions relevant to nutrient requirements.

B L O'Dell1

  • 1Department of Biochemistry, University of Missouri, Columbia 65211.

The Journal of Nutrition
|December 1, 1989
PubMed
Summary

Dietary metal ion interactions can reduce nutrient bioavailability. Excess zinc significantly hinders copper absorption, impacting human nutrition and requiring careful dietary management.

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Area of Science:

  • Nutritional Science
  • Biochemistry
  • Mineral Metabolism

Background:

  • Dietary metal ions can negatively interact, affecting nutrient bioavailability.
  • Significant interactions include sodium-potassium, calcium-magnesium, manganese-iron, iron-copper, and zinc-copper pairs.
  • These interactions are most critical when one mineral is in excess and the other is deficient.

Purpose of the Study:

  • To highlight the impact of metal ion interactions on nutrient bioavailability.
  • To identify key mineral pairs with significant nutritional interactions.
  • To emphasize the practical importance of specific interactions in human nutrition.

Main Methods:

  • Literature review of known mineral interactions.
  • Analysis of nutritional data concerning mineral bioavailability.
  • Identification of prevalent and impactful mineral-nutrient relationships.

Main Results:

  • Multiple dietary metal ion interactions negatively affect nutrient absorption.
  • The interaction between excess zinc and copper is of highest practical significance in human nutrition.
  • Specific mineral ratios, such as zinc-copper, are critical for maintaining adequate nutrient status.

Conclusions:

  • Metal ion interactions are a crucial factor in dietary nutrient bioavailability.
  • Managing excess zinc intake is vital to prevent copper deficiency.
  • Understanding these interactions is essential for optimizing human nutrition and health outcomes.

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