Lactose absorption and malabsorption in healthy italian children: Do the quantity of malabsorbed sugar and the small bowel transit time play roles in symptom production?

P. Roggero, M. L. Offredi, F. Mosca, M. Perazzani, V. Mangiaterra, P. Ghislanzoni, L. Marenghi, P. Careddu

Research output: Contribution to journalArticlepeer-review

Abstract

Using breath hydrogen analysis after an oral lactose load (2 g/kg; maximum 50 g), we investigated the prevalence of lactose malabsorption in 61 healthy Italian children aged 6-13 years. We also examined the relationship between symptoms and small bowel transit time and the degree of sugar malabsorption. Three of 61 subjects produced no H2after both lactose and lactulose load and thus were eliminated at the outset. Lactose malabsorption was defined as excretion of >20 ppm H2. Lactose intolerance was classified as mild (colicky pain, flatulence, abdominal distension, borborygmi) or severe (diarrhea). The frequency of lactose malabsorption in the children aged 6-8 years (group I) was 25%; in the children aged 8-11 years (group III), it was 35%, and in the found no difference in the small bowel transit times or in the quantities of malabsorbed lactose in symptomatic and asymptomatic mal-absorbing subjects. Other factors that may play a role in symptom production are discussed.

Original languageEnglish
Pages (from-to)82-86
Number of pages5
JournalJournal of Pediatric Gastroenterology and Nutrition
Volume4
Issue number1
Publication statusPublished - 1985

Keywords

  • Breath hydrogen test
  • Lactose intolerance
  • Lactose malabsorption
  • Small bowel transit time
  • Symptoms

ASJC Scopus subject areas

  • Gastroenterology
  • Pediatrics, Perinatology, and Child Health
  • Histology
  • Medicine (miscellaneous)
  • Food Science

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