First: Generally speaking, you can use10-15g a day and brew it repeatedly until it is tasteless and colorless. According to your own system, one dose a day is enough.

Second: the people who should avoid cassia seed. In terms of eating cassia seed, people with kidney deficiency, constipation, obesity and heavy eyes are suitable for drinking cassia seed tea for computer workers for a long time, generally 5 ~15g each time. However, it should be noted that patients with spleen and stomach deficiency and cold, physical weakness, loose stool and other diseases should not eat less. There are also contraindications to taking cassia seed, which is not suitable for some patients with hypertension and hyperlipidemia, and should be paid attention to by such patients ... After taking cassia seed, some patients will suffer from numbness of lips and tongue, itchy skin, nausea and vomiting, abdominal pain, diarrhea, wheezing and other symptoms, so they should be used with caution according to their own bodies.