Cassia seed is a traditional Chinese medicine for tea. Cassia seed has many functions, which can not only reduce blood fat and lose weight, but also be commonly used in traditional Chinese medicine, such as clearing liver and improving eyesight, lowering blood pressure and hyperlipidemia. Be sure to pay attention to the taboo of cassia seed before taking it, and pregnant women had better not take it. In addition, drinking cassia seed for a long time may cause irregular menstruation, which will seriously lead to abnormal endometrium. Moreover, cassia seed is a laxative in traditional Chinese medicine, so pay attention to the dosage when eating. It can be seen that it is best to take cassia seed in a planned and limited way under the guidance of experts, and must not act rashly.