Bronchitis is very common in clinical settings and can be divided into acute bronchitis and chronic bronchitis based on the duration of the patient's illness. Chronic bronchitis generally causes patients to experience recurrent symptoms such as coughing, phlegm, shortness of breath, chest tightness, and even difficulty breathing. For patients with chronic bronchitis, it is important to avoid eating foods that are overly sweet, overly greasy, as well as high-temperature fried foods, and to avoid spicy and irritating foods. Therefore, it is generally not recommended for patients with bronchitis to consume sweets, as sweet foods can lead to an increase in the secretion of mucus and may also increase the viscosity of the phlegm coughed up by the patient, thereby hindering the improvement of the patient's symptoms. Thus, it is not advisable for patients with bronchitis to eat sweet foods.