There are no three kinds of people should not drink cassia seed tea this kind of statement, mainly gas deficiency loose stool (feces thin not shaped) people should not drink. Cassia seeds belong to a kind of traditional Chinese medicine, is a legume cassia or small cassia dry mature seeds. Its flavor is sweet, bitter, salty and slightly cold in nature. It belongs to the liver and large intestine meridian. Cassia seed belongs to the category of heat-clearing drugs in traditional Chinese medicine, and the main function of this drug is to clear the liver and brighten the eyes (clearing the liver fire to promote the recovery of vision), moistening the intestines and relaxing the bowels, therefore, it is especially good at treating the symptoms of red and swollen eyes caused by exuberant liver fire, headache and dizziness, dry mouth and tongue, thirst for cold drinks, and yellowing of urine. In addition, for constipation caused by liver fire and dryness of the colon, cassia seeds can also play a role in the treatment. However, cassia seed tea plays a limited role, and the nature of the drug is cold, qi deficiency loose stools should not be used. It is recommended to consult a doctor for specific medication.