Respiratory excretion of hydrogen and methane in Italian subjects after ingestion of lactose and milk

E. Zuccato, M. Andreoletti, A. Bozzani, F. Marcucci, P. Velio, P. Bianchi, E. Mussini

Research output: Contribution to journalArticle

Abstract

Lactose malabsorption, by the breath hydrogen test, and lactose intolerance (presence of symptoms) were studied in twenty healthy Italian subjects after intake of 12.5, 25 and 50 g lactose, whole milk and low-lactose milk. A rise in respiratory concentration of hydrogen (>20 ppm) (malabsorption) was found in fifteen subjects after 50 g lactose, in thirteen after 25 g and in seven after 12.5 g. Symptoms generally occurred in subjects presenting a rise in respiratory hydrogen excretion, but such a rise was often observed without symptoms. Thirteen subjects presented symptoms after 50 g lactose, but only three after 25 g and one after 12.5 g. Whole milk (500 ml) gave a lower incidence of lactose malabsorption than 25 g lactose (7/20 versus 13/20, P

Original languageEnglish
Pages (from-to)261-266
Number of pages6
JournalEuropean Journal of Clinical Investigation
Volume13
Issue number3
Publication statusPublished - 1983

ASJC Scopus subject areas

  • Medicine(all)

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    Zuccato, E., Andreoletti, M., Bozzani, A., Marcucci, F., Velio, P., Bianchi, P., & Mussini, E. (1983). Respiratory excretion of hydrogen and methane in Italian subjects after ingestion of lactose and milk. European Journal of Clinical Investigation, 13(3), 261-266.