Food Safety Report: Subway, South Redwood Road, South Jordan, UT, USA 9 months ago • details Comments Comment Suspected food poisoning. Symptoms: Diarrhea Suspected source: Spicy Italian sandwich Onset: 4 to 12 hours Duration: Less than 4 hours Sick: 2 people Additional information: I got the spicy Italian and around 8 hours after eating I got diarrhea.