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New essential trace elements for the life sciences.

F H Nielsen1

  • 1US Department of Agriculture, Grand Forks Human Nutrition Research Center, ND 58202.

Biological Trace Element Research
|July 1, 1990
PubMed
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Essential trace elements like boron and copper play crucial roles in nutrition, especially under physiological stress. Understanding their impact is vital for human health and dietary recommendations.

Area of Science:

  • Nutritional Science
  • Trace Element Metabolism
  • Human Physiology

Background:

  • The nutritional significance of certain trace elements becomes apparent under physiological stress.
  • Selenium's role highlights how stress can reveal deficiencies in essential trace elements.
  • Boron, copper, chromium, molybdenum, nickel, arsenic, and vanadium are under investigation for their nutritional importance.

Purpose of the Study:

  • To discuss the potential importance of newly recognized essential trace elements in nutrition.
  • To explore how physiological stress influences the requirement for specific trace elements.
  • To examine the role of trace elements in bone metabolism and responses to dietary factors.

Main Methods:

  • Reviewing studies on trace element nutriture under various forms of stress in animals and humans.

Related Experiment Videos

  • Analyzing the effects of dietary boron on calcium and bone metabolism.
  • Investigating the impact of dietary factors (cystine, fructose) on copper deficiency signs in rats.

    • Main Results:

    • Dietary boron influences calcium and bone metabolism.
    • Dietary composition (amino acids, carbohydrates) affects the manifestation of copper deficiency.
    • Evidence suggests chromium, molybdenum, nickel, arsenic, and vanadium may be nutritionally significant under stress.

    Conclusions:

    • Trace elements like boron and copper may be nutritionally significant, similar to selenium.
    • The nutritional impact of trace elements is often revealed during periods of physiological stress.
    • Some trace elements are likely more critical in human nutrition than currently recognized.