1, cause high blood pressure, plums are made of salt, high salt content, hypertension and other people suffering from cardiovascular diseases should not be eaten, too much salt into the body will cause an imbalance of potassium and sodium in the body; potassium and sodium will make the body of the body of the blood pressure rise, there is a risk of high blood pressure.

2, stimulate the gastric mucosa, plums in the salt and acidic substances, gastrointestinal function is not good people should not eat plums, eat a lot of plums will have to stimulate gastric juice secretion, damage to the gastric mucosa, causing gastric discomfort; gastrointestinal function is not good to eat plums not only can't play the role of appetizer and digestion, but also stimulate the gastric mucosa, causing gastrointestinal diseases.

3, causing oral discomfort, plums contain a lot of sugar, salt and citric acid, a small amount of food can be eaten to stimulate appetite, massage the gums, to prevent periodontitis; but if a large number of food will be too much to stimulate your salivary glands, too much salt into the mouth will burn the walls of your mouth, causing mouth ulcers, and the acid in the plums will be eroded to the dentin, stimulate your nerves, teeth will be souring.