HYBRID: Hydrogen Breath Test in Lactose Digestion

Inclusion Criteria: BMI between 18.5 and 24.9 kg/m2 inclusive Lactose intolerant The following criteria need to be checked at visit 2: * Lactose intolerance confirmed by positive Hydrogen Breath Test (HBT) (i.e. if there are two or more samples with hydrogen level \> 20 ppm increase compared to baseline sample between 90 mins and 240 min sampling time point). * At least one sample with hydrogen level \> 20 ppm increase compared to baseline between 90 mins and 180 mins sampling time point. Exclusion Criteria: History of gastrointestinal disorders Current illness which could interfere with the study (e.g. diarrhea, regurgitation) Any history of cow's milk protein allergy or known allergy to galacto-oligosaccharides Any current participation or within 8 weeks of study start, in any other study involving investigational or marketed products, any medical procedures, or any surgical methods. Any antibiotic, laxative or colonic cleansing treatments within 4 weeks of study start Any administration of probiotic in the 1 week prior to study start Investigator's uncertainty about willingness or ability of subject to comply with protocol requirements The following criteria need to be checked at visit 2: * Level of hydrogen \> 20 ppm in the baseline breath sample. * An early peak of hydrogen (i.e. hydrogen level \> 20 ppm increase compared to baseline value) in the first 60 minutes after ingestion of the study products.