Foods that cannot be eaten with stomach acidity usually include cold foods, acidic foods and strong tea. 1. Cold food: usually the stomach likes dryness and aversion to cold, cold food is not in line with the temperament of the stomach, so patients should not eat more cold food in their daily life, such as ice cream, cold drinks and so on. 2. Acidic food: Acidic food such as oranges and vinegar may lead to endocrine imbalance and damage the gastric mucosa. If patients with excessive stomach acid eat acidic food, not only can’t relieve stomach acid, but also may increase the adverse effects. 3. Strong tea: Usually the theophylline content in strong tea is high, which will promote the secretion of gastric acid and damage the gastric mucosa. Therefore, drinking strong tea may make the patient’s stomach acid symptoms more serious. It is recommended that when the patient has symptoms of stomach acidity, he should consult a doctor in time and regulate the food under the guidance of a professional doctor, and should not use the food privately, so as not to cause adverse effects.