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Trace element nutrition during pregnancy

L Wada1, J C King

  • 1University of California at Berkeley, College of Natural Resources, Department of Nutritional Sciences, Agricultural Experiment Station, Berkeley 94720.

Clinical Obstetrics and Gynecology
|September 1, 1994
PubMed
Summary
This summary is machine-generated.

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Optimal trace element intake during pregnancy relies on a balanced diet. While vegetarian sources are adequate, animal foods offer more absorbable nutrients, with iron supplementation being the only routine recommendation.

Area of Science:

  • Nutrition Science
  • Maternal Health
  • Trace Element Metabolism

Background:

  • Trace elements are vital for maternal and fetal health during pregnancy.
  • Dietary sources vary in nutrient concentration and bioavailability.
  • Specific trace elements require careful consideration for optimal intake.

Purpose of the Study:

  • To outline optimal trace element intake strategies for pregnant women.
  • To differentiate the roles of dietary patterns and supplementation.
  • To identify risk factors for inadequate trace element status.

Main Methods:

  • Literature review on trace element nutrition in pregnancy.
  • Analysis of dietary sources and absorption factors.
  • Evaluation of current supplementation guidelines and screening practices.

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Main Results:

  • A balanced diet with both animal and plant foods is recommended for trace elements.
  • Flesh foods provide more concentrated and absorbable trace elements than vegetarian diets.
  • Iron supplementation is routinely advised; iodine sufficiency is noted in the US food supply.

Conclusions:

  • Routine screening for trace element status is unnecessary except for iron (via hemoglobin/hematocrit).
  • Risk factors for deficiency include poor diet, altered metabolism, and low soil content in residence regions.
  • Dietary diversity is key, with specific attention to iron and adequate iodine intake.