Assertion: lactose intolerance's gas | /r/HasSubevent | nausea
Facets:
Source sentences:
text: Lactose may also be fermented by gut microflora producing health-enhancing substances (i.e., short chain fatty acids) but also gases that may result in bloating and other possible symptoms such as abdominal pain, nausea, and flatulence (Di Rienzo et al.