Food Safety Report: Kentucky Fried Chicken, Stuttgarter Strasse 131, 71332 Waiblingen, Germany 2 years ago • details 4 Comments Comment Suspected food poisoning. Symptoms: Diarrhoea, stomach pain Suspected source: kfc Onset: Less than 4 hours Duration: 4 to 12 hours Sick: I Additional information: Crunch burger definitely causes diarrhea in the KFC and stomachache!