Food Safety Report: Sharky's Woodfired Mexican Grill, Ventura Boulevard, Studio City, CA, USA 1 year ago • details 11 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Headache Suspected source: Spinach Onset: 12 to 24 hours Duration: 12 to 24 hours Sick: Me Additional information: Nausea and diarrhea