Lactose intolerance

Researchers at ETH Zurich are testing whether analyzing exhaled breath can diagnose lactose intolerance. The study includes 112 adults aged 18 to 65 in the Zurich area who consume a lactose or glucose solution. By measuring specific gases in the breath and comparing them to urine…

This study tested a smart underwear device to see if it can detect lactose intolerance by measuring gas events after drinking lactose. 37 adults (some lactose tolerant, some intolerant) wore the device and consumed both lactose and a placebo (sucrose) on separate days. The goal w…

This study tested whether a daily probiotic capsule containing two bacterial strains could reduce gastrointestinal symptoms like bloating, gas, and cramps in adults with lactose intolerance and methanogenic intestinal overgrowth. Twenty-two adults took either the probiotic or a p…

This study tested whether adding lactase enzyme to milk feedings helps preterm babies (born before 34 weeks) digest better and gain weight. 124 infants received either lactase-supplemented or standard feedings for two weeks. Researchers tracked feeding tolerance, weight gain, and…

This study looked at how different types of milk—A2 milk and protein-hydrolysed lactose-free A1 milk—affect gut symptoms and inflammation in 37 adults who usually feel discomfort from regular milk. Participants drank each milk type for three days while taking either a lactase cap…