What causes abdominal pain and diarrhea after eating?

Abdominal pain, diarrhea, nausea, and vomiting may be caused by acute enteritis—often triggered by abdominal exposure to cold or consumption of contaminated food. Currently, appropriate administration of anti-inflammatory or antidiarrheal medications is recommended to effectively prevent worsening of diarrhea. Additionally, close attention to dietary habits is essential in the near term: avoid cold or raw foods, and instead opt primarily for warm, cooked meals.