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Related Experiment Videos

Selenium and breast-feeding.

Jose G Dorea1

  • 1Department of Nutrition, Universidade de Brasilia, Brazil. dorea@rudah.com.br

The British Journal of Nutrition
|November 12, 2002
PubMed
Summary
This summary is machine-generated.

Breast milk selenium (Se) levels vary based on maternal diet and lactation stage. Supplementation can increase Se in breast milk, benefiting infant nutrition, though recommendations are not always met.

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Area of Science:

  • Nutritional Biochemistry
  • Human Lactation
  • Trace Element Metabolism

Background:

  • Selenium (Se) is an essential trace element crucial for infant development.
  • Breast milk is the primary source of nutrition for infants, and its Se content is influenced by maternal factors.
  • Understanding Se metabolism and secretion in breast milk is vital for ensuring adequate infant Se status.

Purpose of the Study:

  • To review the factors influencing selenium (Se) nutrition during breastfeeding.
  • To examine the metabolism and secretion of Se in breast milk.
  • To assess the impact of maternal diet and supplementation on breast milk Se levels and infant Se status.

Main Methods:

  • Comprehensive literature search of Medline and Web of Science databases.

Related Experiment Videos

  • Selection of studies focusing on selenium and breast milk.
  • Analysis of data on Se forms, concentrations, and influencing factors in breast milk.

    • Main Results:

    • Breast milk Se concentration varies significantly, influenced by maternal dietary intake and soil Se content.
    • Inorganic Se supplements are not detectable in breast milk, while organic Se is utilized.
    • Se levels are highest in colostrum and decrease throughout lactation; glutathione peroxidase is a major Se-containing protein.

    Conclusions:

    • Maternal Se intake, through diet or supplements, effectively influences breast milk Se concentration.
    • While breast milk Se levels vary, breast-fed infants generally have a better Se status than formula-fed infants.
    • Se prophylaxis, via soil fertilization or maternal supplements, can improve breast milk Se levels, though recommendations are not consistently met.