Cassia seeds are a common herb that has some toxicity. Its consumption time is not strictly regulated, but depends on the purpose of consumption. Cassia seeds are sweet, slightly bitter and cold in nature, and their main functions are to clear the liver and improve eyesight, and to laxate the bowels. As a daily health care, it is recommended to drink it every 2-3 days, not too often. Because of the cold nature of cassia seeds, frequent and long-term consumption may damage the spleen and stomach Yang Qi, leading to weakness of the spleen and stomach, causing diarrhea, loose stools and other gastrointestinal discomfort, and for women may cause menstrual disorders and other reproductive system discomfort. If used for medicinal purposes, the frequency of consumption should be combined with your own symptoms and follow medical advice. Although cassia seeds are beneficial, they are not suitable for all patients, such as those with spleen and stomach deficiency and diarrhea. Therefore, to ensure safety, it is recommended that patients consume it properly and regularly under the guidance of a professional herbalist.