Food Safety Report: Cheerios, John's NOFRILLS North York, Wilson Avenue, Toronto, ON, Canada 1 year ago • details 6 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Stomach Pain, Cramps Suspected source: Cereal Cheerios Onset: Right away Duration: 4 to 12 hours Sick: Me Additional information: I had Cheerios in the… See more