Most components of evergreen tea are laxatives. Although it has the effect of clearing intestine and expelling toxin, long-term use is not conducive to human health.

Evergreen tea is mostly made of traditional Chinese medicine, and most of the ingredients contain rhubarb, mirabilite, aloe and cassia seed. , all belong to bitter cold and heat-clearing drugs. Traditional Chinese medicine uses attack drugs, which usually stop the disease and cannot be taken for a long time. Aloe, cassia seed, rhubarb, etc. After short-term use, it may relieve constipation and make the intestines unobstructed. However, taking it as a health care product for a long time will damage the healthy qi of human body, lead to decreased immunity and weak constitution, and may induce new diseases, such as stomach cold, liver poisoning, edema, anemia, dizziness and local cirrhosis. Some will only rely on drugs to cause constipation, and in severe cases, it will cause melanosis coli.

Traditional Chinese medicine believes that the attack drugs used are generally aimed at patients with empirical constipation caused by gastrointestinal heat accumulation and obesity and greasy diet. Patients with deficiency syndrome, especially the elderly and infirm, are likely to eat more and more deficiency. Therefore, it is very dangerous to prescribe the right medicine, treat it dialectically and attack it indiscriminately. Some elderly people are very common in clinic. After using laxatives, diarrhea, loss of appetite, physical weakness and even life-threatening occur. Old people and people with weak constitution should take drugs for clearing the bowels and relaxing bowels under the guidance of doctors, so as to avoid endocrine disorders and accelerate aging. It is not recommended to take evergreen tea for a long time. However, melanosis coli easily caused by drinking evergreen tea for a long time is a benign and reversible intestinal disease, which is characterized by pigmentation of colon mucosa. Long-term use of anthraquinones and diphenylmethane laxatives is currently recognized as the main cause of melanosis coli. Many evergreen teas contain anthraquinone laxatives, so evergreen teas cannot be taken for a long time. At present, it is relatively safe to use physical intestine-clearing drugs that are not absorbed and metabolized by the human body, such as Shutaiqing. But you can't clean your intestines too often. Eating more vegetables and fruits, taking part in physical exercise and keeping a good mood are the best ways to clear the intestines.