If you are in an acute attack of gastroenteritis, you should not eat tomatoes. In acute gastroenteritis, the gastrointestinal mucosa is congested, edematous, and even has erosion and bleeding. Tomatoes are acidic foods, which can easily cause irritation to the gastrointestinal tract when eaten, leading to increased discomfort, and patients often have diarrhea, abdominal pain, and even fever and black stools. Tomatoes are rich in vitamins and carotenoids, so they can be gradually increased in moderation after the condition is stabilized. It is recommended to take them with hot water, peel them and eat them or fry them before eating them, and pay attention to the regular diet, not to eat raw, cold, hard and spicy, irritating vegetables and fruits. To eat less and more meals, regular diet, do not stay up late, avoid the stimulation of smoking and alcohol.