Occasional overdose of goji berries is not a big problem, but if long-term overdose can lead to dampness within the evil, diarrhea and other adverse reactions. Chinese wolfberry belongs to the medicinal and food products, with nourishing the liver and kidney, benefiting the essence and brightening the eyes (tonifying the essence and promoting the recovery of eyesight). Occasionally exceeding the normal drinking dose will generally have no adverse effects; however, if normal people take this medicine in excess for a long period of time, it can lead to the internalization of dampness. If patients with vegetative spleen deficiency take it for a long time, it may aggravate spleen deficiency and dampness, resulting in reactions such as epigastric (abdominal) plumpness (stomach distension and discomfort), nausea and vomiting. Nourishing drugs such as wolfberry tend to generate dampness and turbidity, so if they are taken in excess, or for a longer period of time, or if the person himself is weak in spleen qi (spleen qi is weak), it is likely to lead to the occurrence of adverse reactions. It is contraindicated in cases of external infection, actual heat, spleen deficiency with dampness and diarrhea. It is recommended to take Lycium barbarum in normal dosage as prescribed by the doctor, and if there is any discomfort, it is recommended to consult a doctor in time.