Food Safety Report: Undercooked Frozen Dumplings, Walmart Supercenter, Martin Luther King Junior Boulevard, Fayetteville, AR 72701, USA 10 months ago • details Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Cramps Suspected source: undercooked frozen dumplings Onset: 12 to 24 hours Duration: 12 to 24 hours