2, the disadvantages of eating more pomegranate: pomegranate has more sugar, and eating more will damage teeth. The pigment in its juice can dye black teeth, and it will also help the fire to produce phlegm and damage the lungs. So, don't eat more. People with painful dental caries should also avoid it. Pomegranate contains a lot of tannin, which has astringent effect. Constipation and diabetes patients should avoid eating. People with acute pelvic inflammatory disease, urethritis and cold should also avoid eating pomegranate; Patients with lung qi deficiency and lung diseases, such as lung flaccidity, silicosis, bronchial asthma, lung abscess, etc. It is not advisable to eat more.