The dangers of eating too many scallions include unfresh breath and easy to cause stomach pain and acid reflux for some people. 1. scallions have a pungent odor, after a person eats them, this flavor will stay in the mouth for a long time, so that people’s breath is not fresh, so people should not eat scallions when they have social activities. 2. Eating scallions should pay attention to the amount of control, eat more will cause excessive stimulation of the human oral cavity and gastrointestinal tract, especially gastric ulcer patients, gastroesophageal reflux patients, can not eat too much scallions, otherwise it is easy to cause stomach pain and acid reflux and other symptoms. Therefore, it is important to consume scallions in moderation so as not to cause harm to the body. If the body has stomach pain, acid reflux and other abnormalities, you should go to the hospital in time for examination and treatment under the guidance of the doctor.