Cassia seed is a common herb that is used to clear the liver and improve eyesight (removing liver fire to promote vision restoration), and to moisten the intestines and laxatives. There are some differences between raw cassia seeds and cooked cassia seeds in terms of appearance, flavor and efficacy. 1. Appearance: raw cassia seeds are greenish yellow, while cooked cassia seeds are burnt yellow after frying. 2. Taste: cassia seeds cold, cooked cassia seeds after frying, compared to raw cassia seeds, its coldness will be weakened, will have a certain flavor. 3. Efficacy: raw cassia seeds can clear liver fire, laxative, while the fried cooked cassia seeds will reduce the laxative and clear liver fire. The adverse effects of the above medicines are not clear, and they should not be used by people with spleen deficiency and diarrhea (diarrhea caused by weak spleen function). Therefore, they should not be used without authorization and should be taken under the guidance of a TCM practitioner to avoid adverse effects.