Because food poisoning and the stomach flu can present with similar symptoms, it can be difficult to tell them apart.
“While the symptoms of food poisoning and stomach bugs overlap, there is a difference in how quickly the symptoms arise,” Dr. Jackson says. “With food poisoning, rapid diarrhea and vomiting will begin within three to six hours of eating a contaminated food source. With a stomach flu, it’s a slower course, and the symptoms of vomiting and diarrhea may not show up for 12 to 24 hours. A person will start feeling unwell and queasy first.”
FoodWorld 