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Lactose malabsorption in Israeli children.

Y Bujanover, A Katz, Y Peled

    Israel Journal of Medical Sciences
    |January 1, 1985
    PubMed
    Summary

    Lactose malabsorption increases with age in Jewish children in Israel. While many children malabsorb lactose, a significant portion remain symptom-free, indicating lactose tolerance despite malabsorption.

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    Area of Science:

    • Pediatric Gastroenterology
    • Nutritional Science
    • Human Physiology

    Background:

    • Lactose malabsorption is common globally, but its prevalence and presentation in childhood can vary.
    • Understanding lactose malabsorption in pediatric populations is crucial for diagnosing digestive issues and guiding dietary recommendations.

    Purpose of the Study:

    • To investigate the prevalence and age-related trends of lactose malabsorption in Jewish children in Israel.
    • To differentiate between lactose malabsorption and lactose intolerance (symptomatic malabsorption).

    Main Methods:

    • Employed the lactose hydrogen breath test (LHBT) on 110 Jewish children.
    • Categorized participants based on age groups and presence/absence of symptoms post-lactose challenge.

    Main Results:

    • Overall prevalence of lactose malabsorption was 61.8% (68/110 children).
    • Lactose intolerance (symptomatic malabsorption) was observed in 60.3% of malabsorbers (41/68).
    • Prevalence of lactose malabsorption increased with age, from 0% in 4 months-3 years to 75.0% in 12-16 years. Symptomatic intolerance also rose with age.

    Conclusions:

    • Lactose malabsorption is age-dependent in this pediatric cohort, increasing significantly after age 3.
    • A substantial proportion of children exhibit lactose malabsorption without clinical symptoms (tolerant malabsorbers).
    • No significant ethnic variations in lactose malabsorption or tolerance were found among the tested groups.

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