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Related Experiment Videos

Fluoride in human milk.

C J Spak, L I Hardell, P De Chateau

    Acta Paediatrica Scandinavica
    |September 1, 1983
    PubMed
    Summary
    This summary is machine-generated.

    Human milk fluoride (F) levels show variability. This study found that infant F intake from breastfeeding remains similar regardless of maternal F intake, ensuring consistent nutrition.

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    Area of Science:

    • Environmental Health
    • Human Physiology
    • Nutritional Science

    Background:

    • Fluoride (F) content in human milk exhibits significant variation.
    • Understanding fluoride transfer from mother to infant is crucial for assessing nutritional intake.
    • Maternal fluoride intake is a key factor influencing human milk fluoride levels.

    Purpose of the Study:

    • To quantify fluoride concentration in human milk across different maternal fluoride intake levels.
    • To assess the impact of environmental fluoride exposure on human milk fluoride content.
    • To determine the resulting fluoride intake for breastfed infants in areas with varying fluoride levels.

    Main Methods:

    • Utilized silicon-facilitated microdiffusion technique for accurate and precise fluoride measurement.

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  • Collected and analyzed colostrum and mature human milk samples from mothers in distinct fluoride exposure areas (1.0 ppm vs. 0.2 ppm).
  • Measured intra- and interindividual variations in milk fluoride concentration within a high-fluoride area.

    • Main Results:

    • Mean fluoride concentration in colostrum was 0.36 ± 0.02 µmol/l (1.0 ppm F area) and 0.28 ± 0.02 µmol/l (0.2 ppm F area).
    • Mean fluoride concentration in mature milk from the 1.0 ppm F area was 0.37 ± 0.04 µmol/l.
    • No statistically significant difference in milk fluoride concentration was observed between the two exposure areas, with minimal intra- and interindividual variations.

    Conclusions:

    • Maternal fluoride intake levels do not significantly alter human milk fluoride concentration.
    • Breastfed infants in areas with 1.0 ppm or 0.2 ppm fluoride intake receive a comparable daily fluoride intake (5-10 micrograms).
    • Human milk provides a consistent fluoride supply to infants, buffering maternal dietary variations.