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Review article: lactose--a potential prebiotic.

A Szilagyi1

  • 1McGill University, School of Medicine, Division of Gastroenterology, Department of Medcine, The Sir Mortimer B. Davis Jewish General Hospital, Montreal, Quebec, Canada. aszilagyi@gas.jgh.mcgill.ca

Alimentary Pharmacology & Therapeutics
|August 29, 2002
PubMed
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Lactose maldigestion affects most people globally. This review suggests lactose, often causing digestive issues, may act as a beneficial prebiotic, potentially impacting lower intestinal diseases.

Area of Science:

  • Gastroenterology
  • Microbiology
  • Nutritional Science

Background:

  • Lactose maldigestion is prevalent worldwide, often associated with adverse gastrointestinal symptoms.
  • Dairy consumption is debated, with some recommending and others blaming it for various health effects.
  • Emerging research indicates certain lactic acid bacteria, utilizing prebiotics, may benefit lower intestinal conditions.

Purpose of the Study:

  • To re-evaluate lactose as a potential prebiotic.
  • To explore the role of lactose in the context of maldigestion and lower intestinal diseases.
  • To discuss the historical and observational evidence for lactose's prebiotic potential.

Main Methods:

  • Historical review of lactose and its properties.
  • Observational analysis of lactose maldigestion and its relationship with gut health.

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  • Literature synthesis on prebiotics, lactic acid bacteria, and lower intestinal diseases.

    • Main Results:

    • Lactose maldigestion is widespread and linked to digestive discomfort.
    • Lactose exhibits characteristics of a prebiotic, selectively feeding beneficial gut bacteria.
    • The presence or absence of lactose may influence the development of colorectal cancer and inflammatory bowel diseases.

    Conclusions:

    • Lactose should be reconsidered as a prebiotic with potential health benefits.
    • Further research is warranted to understand lactose's role in gut health and disease prevention.
    • The management of lactose in individuals with maldigestion could be relevant for preventing lower intestinal diseases.