1. For pregnant women, excessive consumption of cassia seed will lead to uterine contraction of pregnant women, which may lead to the risk of premature delivery or miscarriage.

2. Cassia seed contains oxalic acid. If pregnant women eat too much, it will lead to calcium loss. The lost calcium will be lost from the teeth and bones of pregnant women, causing anemia.

3. Cassia seed also contains a variety of alkaloids, which cannot be accurately decomposed and eliminated for most people. Excessive intake will cause damage to internal organs.

Cassia seed has a good effect of dispelling cold, and many people will eat it when they have a cold. However, if the condition is serious, it is not appropriate to eat cassia seed, which will aggravate the symptoms of wind and cold.

Cassia seed contains some ephedrine, so patients with heart disease should not eat Cassia seed, which will cause a serious burden on the heart.

6. Cassia seed contains some toxic substances. If it is not cooked, it may have certain toxicity. Even if it is boiled before eating, the dosage needs to be controlled.