2. Disadvantages: However, if patients eat too many red dates, it may cause indigestion, which may easily lead to abdominal distension, diarrhea and other discomfort. If the patient has abdominal distension and diarrhea, he can be treated under the guidance of a doctor. At the same time, because jujube contains sugar, diabetic patients may cause blood sugar to rise after eating jujube. If diabetic patients have elevated blood sugar, they can be treated under the guidance of a doctor.