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[Lactose malabsorption in ulcerative colitis. A case-control study].

D Ginard1, J Riera, L Bonet

  • 1Servicio de Aparato Digestivo. Hospital Son Dureta. Palma de Mallorca. Spain. dginard@hsd.es

Gastroenterologia Y Hepatologia
|October 10, 2003
PubMed
Summary
This summary is machine-generated.

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Lactose malabsorption is not more common in ulcerative colitis patients than in controls. Systematic lactose elimination is not recommended; hydrogen breath tests are advised only for symptomatic patients.

Area of Science:

  • Gastroenterology
  • Digestive Health
  • Clinical Nutrition

Background:

  • The association between lactose malabsorption and ulcerative colitis (UC) remains debated.
  • Previous studies have yielded conflicting results regarding lactose malabsorption prevalence in UC patients.
  • Dietary modifications, including lactose restriction, are common in UC management, but their necessity is questioned.

Purpose of the Study:

  • To investigate and compare the prevalence of lactose malabsorption in patients diagnosed with ulcerative colitis versus a healthy control group.
  • To assess the impact of diagnosis and dietary habits on lactose consumption in UC patients.
  • To provide evidence-based recommendations for lactose intake management in ulcerative colitis.

Main Methods:

  • Hydrogen breath test (HBT) was employed to diagnose lactose malabsorption.

Related Experiment Videos

  • 52 patients with ulcerative colitis and 34 healthy controls ingested 25g of lactose for the HBT.
  • A questionnaire was administered to evaluate milk product consumption patterns in both groups.

    • Main Results:

    • Lactose malabsorption was detected in 25% of UC patients and 32% of controls, with no statistically significant difference (p=0.45).
    • A significant proportion of UC patients (46%) were advised to eliminate lactose entirely.
    • Even among UC patients without lactose malabsorption, many reduced or eliminated lactose intake post-diagnosis.

    Conclusions:

    • There is no significant difference in lactose malabsorption prevalence between ulcerative colitis patients and the general population.
    • Routine and complete elimination of lactose from the diet of UC patients is considered inappropriate.
    • The hydrogen breath test for lactose malabsorption should be reserved for UC patients exhibiting specific intolerance symptoms.