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Lactose Breath Test and Genotyping Showed Higher Concordance Than the Urine Gaxilose Test for the Diagnosis of Lactose Malabsorption in Adults.

Neurogastroenterology and motility - 1 Apr 2026

Martín-Dominguez V, López-Vega M C, Álvarez-Malé T, Pérez-Lucendo I, Ferreiros-Martínez R, Granero-Cremades I, Ezquerra-Durán A, Berlanga-Gómez M I, Fernández-Pacheco J, Mancheño-Del Real V, Santander C, Laserna-Mendieta E J

Abstract excerpt

BACKGROUND: Lactose malabsorption (LM) is a common condition that occurs when undigested lactose reaches the colon, often causing symptoms such as diarrhea, flatulence, and abdominal pain. Diagnosis can be obtained by performing several tests, each with advantages and disadvantages. This study aims to compare three of the five available methods-the genetic, the urine gaxilose, and the lactose breath tests (LBT) -...

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Breath Tests
Genotype
Lactose
Lactose Intolerance
Young Adult

Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

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PMID: 40720692
DOI: 10.1111/nmo.70130

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 1 Sept 2026.

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