Food Safety Report: Tropical Smoothie Cafe, Carlson Way, Marion, IA, USA 9 months ago • details 4 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Stomach Pain, Cramps Suspected source: Tropical smoothie supergreen ceasar wrap Onset: 4 to 12 hours Duration: 12 to 24 hours Sick: Not sure