Don't eat too much: Watermelon is the most natural natural drink, and it is rich in nutrition and has many benefits to the human body. However, although watermelon has many advantages, the side effects of large or long-term consumption can not be ignored. Wang Mingying said in "Edible Materia Medica": Watermelon is cold and antipyretic, and it has the name of natural white tiger soup, but it is not suitable to eat more. Li Shizhen's Compendium of Materia Medica said: Watermelon and melon are both cold, which is thought by the common people to be a quick way to remove dew, but I don't know the harm of damaging the spleen and helping dampness. Yuan Pengfei's Life-prolonging Book says: Northerners are generous, but they are still used to eating, while southerners are thin, and eating too much is easy to cause cholera. There is another cloud: Chen Fengyuan is a satrap in Zhou Fang. He eats too many melons in summer, and suddenly his back aches and his legs ache in autumn, so he can't move. He just eats melons. Therefore, TCM syndrome differentiation belongs to spleen and stomach deficiency cold, cold accumulation abdominal pain, frequent urination and more urine; And people who usually have chronic enteritis, gastritis, duodenal ulcer, etc. It belongs to deficiency-cold constitution and should not be eaten more. Normal and healthy people should not eat too much at one time or for a long time, because watermelon contains a lot of water, which will dilute the gastric juice in the stomach and cause indigestion or diarrhea.