Assertion: melatonin's effect | /r/HasProperty | stomach pain
Facets:
Source sentences:
text: Other side effects of melatonin include gastrointestinal issues such as diarrhea, abnormal feces, stomach pain, vomiting, nausea, cramping, increased appetite or altered tastes.
text: Some side effects of melatonin include stomach pain, headaches, dizziness and daytime drowsiness.