it shouldn't be a problem if you don't eat much star anise. But always eat, because spices have strong fat solubility, easy to enter the brain to play a role, the harm is not found, but it may affect intelligence or memory. From the perspective of traditional Chinese medicine, excessive aromatic qi will consume healthy qi.

Cinnamomum cassia, Illicium verum, Fennel and Zanthoxylum bungeanum all have certain mutagenicity and toxicity. Cinnamon may contain frameshift mutants and alkaline opposite mutants, while Zanthoxylum bungeanum, Illicium verum and Fennel may change the genetic function of normal tissues and cells, causing them to mutate. If these spices and condiments are used more often, it will lead to cell distortion and cancer formation. The carcinogenic effect of the above natural spices on human body also depends on "the dosage, the length of time and the closeness of contact, especially the user's own health and immune ability". Moreover, the carcinogenic effect on human body has a long "incubation period". Of course, if you use it occasionally or for a short time, you don't have to worry about the carcinogenic effect of natural spices. In addition, these natural spices will also bring people side effects such as dry mouth, sore throat, listlessness, insomnia, etc., and will also induce many diseases such as hypertension and gastroenteritis.