Can patients with severe duodenal ulcers eat tomatoes?
Generally, patients with severe duodenal ulcers are not advised to eat tomatoes, as they may easily cause discomfort. The detailed explanation is as follows:

If the duodenal ulcer is severe and the patient experiences persistent pain, burning sensation, acid reflux, nausea, vomiting, or other uncomfortable symptoms, or if symptoms do not improve or even worsen after eating, tomatoes should be avoided at this time. This is because the acidity of tomatoes may irritate the gastric mucosa, increase gastric acid secretion, and thereby exacerbate ulcer symptoms.
If tomatoes need to be consumed, it is recommended to wait until the condition is stable. Eating tomatoes during this period can reduce irritation to the duodenum and help replenish necessary nutrients. However, it is advisable to choose cooking methods such as steaming, stewing, or braising, and avoid frying, smoking, or other hard-to-digest cooking methods.
In daily diet, patients should maintain a balanced diet, consume more warm, easily digestible, and nutrient-rich foods, and avoid spicy, greasy, overly cold, or hard foods. Additionally, attention should be paid to rest and avoiding excessive fatigue, which is beneficial for gastrointestinal repair and health recovery.